Arbeitsanleitung WinIso 2D

Transcription

Manual WinIso 3D
© Sommer Informatik GmbH
Sepp-Heindl-Str.5 · D-83026 Rosenheim
Tel. +49 (0) 8031-2488-1 · Fax: +49 (0) 8031-2488-2
[email protected] · www.sommer-informatik.de
Sommer Informatik GmbH
1
Introduction..................................................................................................................................... 5
2
Installation ....................................................................................................................................... 6
2.1
System requirements .............................................................................................................. 6
2.2
Download WinIso 3D ............................................................................................................... 6
2.3
Install WinIso3D....................................................................................................................... 7
2.4
Online activation ..................................................................................................................... 7
3
Start menu ..................................................................................................................................... 11
4
Editor ............................................................................................................................................. 12
4.1
5
Important Functions .............................................................................................................. 13
4.1.1
Toolbar........................................................................................................................... 13
4.1.2
Standard bar .................................................................................................................. 13
4.1.3
Info bar .......................................................................................................................... 14
Edit project .................................................................................................................................... 15
5.1
Number of nodes................................................................................................................... 15
5.2
Open an existing project ....................................................................................................... 15
5.3
Navigation through a project in WinIso3D ............................................................................ 16
5.3.1
General .......................................................................................................................... 16
5.3.2
Dialog View .................................................................................................................... 16
5.3.3
Cursor ............................................................................................................................ 16
5.4
Define a project ..................................................................................................................... 17
5.4.1
Select material / material database .............................................................................. 17
5.4.2
Edit Grid/Rows/Column................................................................................................. 19
5.4.2.1
Define cells ................................................................................................................ 19
5.4.2.2
Narrow down a grid in areas without partition......................................................... 19
5.4.2.3
Split row/column ....................................................................................................... 19
5.4.2.4
Edit row height/column width .................................................................................. 20
5.4.2.5
Combine rows/Columns ............................................................................................ 20
5.4.2.6
Delete rows/columns ................................................................................................ 21
5.4.2.7
Insert rows/columns.................................................................................................. 21
5.4.3
Select material ............................................................................................................... 21
5.4.3.1
Fill cells ...................................................................................................................... 21
5.4.3.2
Fill area ...................................................................................................................... 22
5.4.4
From 2D to a 3D project ................................................................................................ 22
© Sommer Informatik GmbH · Sepp-Heindl-Str.5 · D-83026 Rosenheim
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5.4.5
5.4.5.1
Alternative 1 „Copy and Paste“ ................................................................................. 25
5.4.5.2
Alternative 2 „Import“ ............................................................................................... 25
5.4.5.3
Information for import .............................................................................................. 25
5.4.6
6
7
Edit levels....................................................................................................................... 27
Calculation ..................................................................................................................................... 28
6.1
Before calculating .................................................................................................................. 28
6.2
Select calculating parameters ............................................................................................... 29
6.3
Start calculation..................................................................................................................... 32
General evaluation ........................................................................................................................ 32
7.1
Cell information ..................................................................................................................... 32
7.2
Information about project materials ..................................................................................... 33
7.3
Visualization .......................................................................................................................... 34
7.3.1
Visualization of temperature fields ............................................................................... 34
7.3.2
Visualization of heat flow fields .................................................................................... 36
7.3.3
Visualization of isotherms ............................................................................................. 37
7.4
U-Value .................................................................................................................................. 38
7.5
min. /max. surface temperature ........................................................................................... 39
7.6
Evaluation of special windows .............................................................................................. 40
7.6.1
8
Add objects .................................................................................................................... 25
𝑼𝒇-Value ....................................................................................................................... 40
Print project ................................................................................................................................... 41
8.1
Print current project (without details) .................................................................................. 41
8.1.1
Individual control of the print ....................................................................................... 42
8.1.1.1
Printing options ......................................................................................................... 42
8.1.1.2
Size of the graphic in the printing ............................................................................. 43
8.1.1.3
Additional text information ....................................................................................... 43
8.1.1.4
Mix colour and hatching of the printing.................................................................... 43
8.1.2
Manual inscription......................................................................................................... 45
8.1.2.1
Insert inscription........................................................................................................ 45
8.1.2.2
Edit inscription........................................................................................................... 45
8.1.2.3
Move inscription........................................................................................................ 46
8.1.2.4
Font settings for the printing..................................................................................... 47
8.1.2.5
Set font for manual inscription.................................................................................. 47
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8.1.2.6
9
Fade in/out inscription .............................................................................................. 47
DXF-Exchange files......................................................................................................................... 48
9.1
What are DXF-Exchange files? ............................................................................................... 48
9.2
Import DXF-File ...................................................................................................................... 48
10
Hints for faster calculation ........................................................................................................ 49
11
Excursion ................................................................................................................................... 50
11.1
Normative references............................................................................................................ 50
11.2
Climatic conditions ................................................................................................................ 51
11.3
Material database ................................................................................................................. 52
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1 Introduction
Thank you for the trust you have proved to us with the acquisition of this product. The Sommer
Informatik GmbH has put quality as the highest aim to itself and will also put in future everything in
it to present high-quality software to you. Before a product leaves our house, it is tested extensively
and checked conscientiously. Still we cannot exclude program error completely. For programtechnical mistakes and mistakes in the results every liability is excluded. We ask you to inform us
about possible mistakes, so we can repair this as fast as possible and hand over a free update to you.
Of course we are also very grateful about other suggestions and improvements. So we can extend
the functionality and service constantly and improve, where you certainly can profit in later versions..
With the Windows application WinIso 3D you can calculate three-dimensional stationary heat flows
for cross sections. The calculation delivers the length-related whole warmth stream and
temperatures which can be questioned point-wise or be shown as isotherms.
Following problems can be solved separated or combined:
The heat losses are generated only by the inside and outside climate,
there are additional heat flows, e. g. heating (firm preliminary heat temperature, calculation of the
loss of heat),
there are additional heat flows, e. g. the sun (firm warm increase, calculation of the temperature).
The calculation of the temperatures bases on the method of the finite elements (FEM). For the
software friendly calculation of the problem the desired area is splitted in accordingly small sub
ranges - finite elements - and assigns to every element (cell) the suitable material, i. e. certain
qualities according to the heat. With different edge terms the heat flow equation is solved for every
finite element separately. The finite element problem again is calculated on a modified Gauß-SeidelIteration.
The achievement borders of the program are determined by the arithmetic exactness and the
program-technical exactness. The exactness of the calculation after the FEM depends in the
essentials on the delicacy of the elective line column grid and on the heat identity values (warm
conductivity, transitional resistance...). It must be also considered that FEM is a mathematical model.
The program limits the division of the project in finite elements by the smallest possible element
dimension of 0. 01 x 0. 01 x 0. 01 mm, as well as by the maximum-possible division in 400 x 400 x 100
cells (x y z). A project can be divided at most into 16 million elements and arbitrarily many materials
can be used.
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The elements can show up following characteristics:
• Adiabatic elements
• Elements described by their heat transfer coefficient α (e.g. inside/outside air)
• Elements described by their heat conductivity λ (e.g. wood, glass)
• Elements which get assigned a certain theoretical warm insulating value (e. g. enclosed air whose
warm-technical behavior is more complicated by convection and radiation and is determined
externally).
2 Installation
2.1 System requirements
The installation program copies files of the CD (or from the ZIP folder) on the hard disk of your PC.
For a perfectly run of WinIso3D on your computer, the following system requirements are necessary:
• Pentium Processor
• Hard disk with a free store of 1 GB
• A Windows-compatible graphic board
• Minimum of 1 GB RAM
• MS-Windows XP or higher
• MS Word 2003 or higher (for printings and export)
2.2 Download WinIso 3D
You receive an email from us with a download link for the program. A ZIP folder is downloaded by
click on this link. You can open this directly and install therefore the program, or save the file and
install later.
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2.3 Install WinIso3D
Unpack the ZIP-Folder and start the file “setup.exe“ with a doubleclick .
The set-up routines are run successively for WinIso3D. Follow the instructions of the set-up assistant.
You can select an aim list in the course of the installation, click in addition in the suitable installation
step on „changing …“ and choose your aim folder of the installation.
2.4 Online activation
Step 1:
Make sure your computer has an access to the internet.
Step 2:
Run the program with a doubleclick on “Starter.exe” or with the desktop icon which is displayed
below.
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Don’t be irritated by the program which firstly runs as a demo version. To activate all the functions
you have to run the password dialogue.
Step 3:
Run the password dialogue by clicking on
Step 4:
A window is opened where you can activate your program. Therefore please type in the user code.
You will find the user code on your bill on the top right as a customer code and in the email we sent
you.
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Hint: Take note of the capital and small letters as like hyphens
Step 5:
Click on the button “Check license“. Now you can see all available licenses and you personal data.
If there are more licenses available it is useful to relate the licenses with its user to identify the
license when problems show up.
Step 6:
Mark in the list by click the available license which you would like to activate. Give your registration
data (not compelling inevitably) and confirm your choice with click on "OK". Now the program should
be a activated.
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Hint:
- Store your calculation well! She serves as a receipt in case you need a new
installation after problems with your computer..
- If you have problems with the installation please contact us with following
information to [email protected]
- Program and number of version
- Customer code and user code
- Failure description, at best with screenshot
-
Or use the contact sheet from our homepage www.sommer-informatik.de
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3 Start menu
After you opened WinIso3D with the desktop icon or the file ”Starter.exe“ you come to the start
menu. Here you can chose between different points.
Editor
DXF-Converter
Help
Language
Init Password
Info
End
Starts the graphic editor where you can calculate, select materials, etc.
Alternative to DXF.NET
Opens the online help
Selects the language
Password dialogue is opened
Impressum
Closes the program
Info-Button
Opens the Update and version information
Update-Button
(top right) you can check if new updates are available (just visible if you are
connected to the internet)
(bottom right) sets back the counter for the next activation
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4 Editor
Start the editor by clicking on
in the start menu.
Menu
Toolbar
Info bar
Ruler
Project area
Navigation window
Standard bar
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4.1 Important Functions
4.1.1
Toolbar
Material fields: In separate cells of the project, the materials are shown by different
hatches. This symbol instruction equates the menu instruction
View>>Visualization>>Material fields.
Temperature fields: In the cells of the project, the current cell temperature is
displayed coloured. This symbol instruction equates the menu instruction
View>>Visualization>>Temperature fields.
Heat flow fields: In the project cells, the heat flow is showed coloured for the
separate cells. This symbol instruction equates the menu instruction
View>>Visualization>>Heat flow fields.
Consistent view: enlarges small cells to check the model
Without material fields: fades out the filling colour of the material but not the
framing. This symbol instruction equates the menu instruction
View>>Visualization>>Without fields
Isotherms: Isotherms (lines with same temperature) are displayed or deleted.
This symbol instruction equates the menu instruction View>>Isotherms.
Information to cell(s): A window with information of selected cells will display. This
symbol instruction equates the menu instruction Material>>Info about Cell.
Material database: Database for edit in the main- and project-materials. This symbol
instruction equates the menu instruction Material>>Material Database.
Activation of dialogue view: The navigation window is shown or faded out.
Fill selected cell(s) with material: all selected cells get filled with the active material.
This symbol instruction equates the menu instruction Edit>>Fill selected cell(s).
Fill area with material: More connected cells with the same material can be filled with
the current material at once.
This symbol instruction equates the menu instruction Edit>>Fill material area.
Filling CAD-area with material: All cells bordered wit CAD-lines are filled with the
current material
This symbol instruction equates the menu instruction Edit>>Fill CAD-lines.
Zoom in: Enlarges a selected area in your project.
This symbol instruction equates the menu instruction View>>Zoom in.
Zoom out: A bigger area in your project can be displayed.
This symbol instruction equates the menu instruction View>>Zoom out.
Full screen: The whole project is displayed in the projectspace.
This symbol instruction equates the menu instruction View>>Fullscreen.
With random temperatures: Current project can be calculated.
This symbol instruction equates the menu instruction Calculate>>Start.
OpenGL-View: generates a 3D view of the model
4.1.2
Standard bar
New project: A new project can be created.
This symbol instruction equates the menu instruction File>>New.
Open project: An existing file can be opened.
This symbol instruction equates the menu instruction File>>Open.
Save: The current project is saved in the existing file.
This symbol instruction equates the menu instruction File>>Save.
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Clipboard: Current project-extract is saved as a new file or in the clipboard.
This symbol instruction equates the menu instruction Edit>>Clipboard.
Undo: Last action can be undone.
This symbol instruction equates the menu instruction Edit>>Undo.
Steps of the isotherms: A window to edit the isotherms properties is opened.
This symbol instruction equates the menu instruction Options>>Range of
values>>Isotherms.
U-value: The u-value can be calculated on a selected part.
This symbol instruction equates the menu instruction Tools>>U-value.
Min./max. surface temperatures: The minimum and maximum temperature is
displayed.
This symbol instruction equates the menu instruction Tools>>Min./max. surface
temperature.
Assign material: One material can be assign by another one.
This symbol instruction equates the menu instruction Edit>>Assign material.
Copies one plane level into another.
Jump to plane level of the cursor
4.1.3
Info bar
It has an informational property. You can move the bar to any position. It is consists of the project
materialist and three text fields.
Project materiallist: You can find all materials in the project material list which are defined in the
current project. In a new project, you have to selected all materials which should be used in the new
project from the material database. The list can be enlarged at any time.
Textfield 1: This field has two different meanings. In case of your cursor being in the ruler area, the
distance to the beginning of the project is displayed in mm (top left). If the cursor being in the project
area an one cell is selected, the current temperature of the cell is displayed.
Textfield 2: This field also has two different meanings. In case of more cells are selected and the
cursor is in the project area, the size of the smallest rectangle is displayed (b: breadth h: height). You
can measure the distance between two cells in this way. If your cursor is in the ruler area, the
distance between two nearby grid lines is displayed.
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5 Edit project
There are different ways to edit a project in WinIso3D.
•
•
Import of a 2D-File
Own definition of a grid and a filling directly in the editor
5.1 Number of nodes
You can control the maximum node number with the dialogue knot number. This is accessible by the
menu point Options>>Number of nodes... After a change of the node number you must restart
WinIso 3D, so the program with the new node number is initialized. Please remember the fact that
the more nodes you select, the more memory the program needs.
Moreover, the node number is dynamically steered. If enough main memory does not exist for the
preset node number, the nodes are automatically adapted to the available main memory.
5.2 Open an existing project
Via File>>Open or
in the toolbar you can open an existing project.
Hint: existing projects have the file ending .w3d.
This can arbitrarily be edited. Therefore you can go to chapter 6.3
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5.3 Navigation through a project in WinIso3D
5.3.1 General
The program WinIso 3D calculates three-dimensional heat flows. To be able to define a threedimensional project, an input on two-dimensional way must take place. The three-dimensional
project is shown disc-wise in a two-dimensional view. That's why a relatively uncomplicated input is
possible. The single levels can be controlled through the dialogue view or through the key picture up
or picture down. The following three views from the technical drawing area were taken over:
- Front view
- Side view
- Plan view
5.3.2 Dialog View
The dialog view is a visual navigation help between the single planes of the project. It becomes
opened or closed with the menu point View>>Dialog view. The dialogue is a non-modal window that
means inputs can be made furthermore in the main window.
Through the radiobuttons front view, side view and plan view can be steered by the single views of
the project. The depth of the topical view can be regulated by arrow up and arrow down or by the
vertical regulator. There is also the possibility to go to a level by entering the number of the level.
The cube should show the topical cut view visually.
5.3.3 Cursor
The cursor is a navigation point for the project with its different levels and views. The current
position of the cursor is visualized as a kind of grid on the cell.
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The cursor is seen as a kind of anchor in the project. If you are on another level and you want to go
back to the level with the cursor, you just have to click the button (
) and the level will display.
5.4 Define a project
The program WinIso 3D calculates three-dimensional heat flows. Therefore the single cross sections
of the object to be calculated must be defined in the project area. The project exists exclusively of
horizontal and vertical orthogonal lines. The single cells are unambiguously defined by these grid
lines. Afterwards the cells must be filled with the suitable materials. You can change the size and
filling material of the cells at any time.
5.4.1 Select material / material database
To fill your forms (CAD-Lines) with materials, you have to adapt materials in a selection list. This may
be confusing but it makes you project more clear.
First open your database with the menu point Material>>Material database, or you click on the
toolbar icon
.
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On the left side are installed global material records. On the right side of the material database the
materials to be used ("project materials") are put together. These appear while closing the material
database (with click on OK) in the main window in a drop down list. The project materials can be put
together by double click on the global materials or by pretending and shifting with the arrow button
on the right. The materials ND and ADIABAT are always available.
ND = not defined
ADIABAT = Material with endless high thermal resistance.
Hint: The usual materials for windows and facade are in the material group "2_EN ISO 10077-2".
Material of the group "2_EN ISO 10077-2" are write-protected and cannot be changed. If these
materials are used, the word export functions offer an automatic check of the norm conformance of
the materials.
Therefore it recommends to provide a model in WinIso2D first, where you set the "10077-air" in this
and to substitute according to the calculation with an equivalent spare solid afterwards. Besides, the
warm conductivity can be read in main heat flow direction by activating the info window.
Alternative you can calculate like in EN ISO 6946 or EN 673.
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5.4.2
5.4.2.1
Edit Grid/Rows/Column
Define cells
To define a new project, you must first fix the geometry with the help of the vertical and horizontal
grid lines. You can do this while you position the cursor at the desired place in the ruler area and
press the CTRL-key at the same time with the left mouse key.
5.4.2.2
Narrow down a grid in areas without partition
To guarantee an exact calculation areas which are divided coarse, or are not divided at all, have to be
divided by hand. For this, mark an arbitrary cell in the project area with left mouse click. Select
Edit>>Automatically split from the menu bar (or CTRL+F4).
Additional nodes are created. This can be seen in the ruler area.
Because the automatic grits were developed for 2D, a manual adaptation is necessary here in 3D. It is
recommended to provide the model in the minimum grid and to do necessary adaptations by the
treatment individually. See in addition in the following chapter 6.4.2.3
5.4.2.3
Split row/column
There is still another possibility to insert a grid line between two already existing grid lines. Select
one or several cells and then choose the menu point Edit>>Row splitting or Column splitting. Now in
the dialogue field you can determine the position of the new grid line in relation for both neighboring
grid lines. Then the new grid lines are inserted in the lines or columns in which at least one cell was
selected. Afterwards the selection moves accordingly.
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Shift + F5
5.4.2.4
F5
Edit row height/column width
You can change the height of lines and the width of columns any time. In addition at least one cell
must be selected in the line or column. Via menu points Edit>>Change row height (F6) or
Edit>>Change column width (Shift+F6) you can select the new parameters. In the text field you can
see the current parameters.
Shift + F6
F6
With the mouse you can also change the size of a line or column very fast. Point with the cursor at
the grid line, click on the left mouse key with pushed SHIFT-Button and draw the grid line with
pushed mouse key to the new position where you can place the grid line then. All following grid lines
have moved around the same value, so that only the size of one line or column has changed. If you
have filed the grid line beside the upper or left neighbor, the line or column has the new size of 1
mm. If you move a grid line with low-spirited right mouse key, only the splitting changes, i. e. the size
of directly affected lines or columns is changed. If the grid line was filed beside the upper, lower, left
or right grid line, the suitable line or column also has the size of 1 mm.
Hint: Pay attention by changes with the mouse to both text windows in the symbolic strip which
indicate the absolute distance at the project beginning and the relative distances to the neighboring
grid lines.
5.4.2.5
Combine rows/Columns
If the cells are defined by two neighboring lines or columns in each case with the same materials, the
intervening grid line can be extinguished. Both lines and columns are combined to a line or column
(reverse action to splitting). Therefore you point at the suitable grid line, click those, move them with
low-spirited left mouse key and SHIFT from the ruler area and then file them. With an ineffective
union, an announcement will take you notice of it. Then the grid line is inserted in the old position
again. This action can be also explained with the right mouse key. This function can be also explained
about the menu. Therefore a cell must be selected first. Afterwards the program after choice of the
function Edit - combine line / column the line / column in which the selection is , is combined with
the ones in the upper or left line / column. If several cells are selected, the order refers to the cell
selected first of all. It is carried out always only one union. About the menu point of Edit-minimum
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grids you can run all unions permissible in the project in the lines as well as in the columns all at
once. This action can be cancelled with Edit - Undo again.
Attention: in 3D there is not the possibility to undo the splitting or combining by typing CTRL+Z. Save
your project from time to time to go to a earlier editing in case of problems.
5.4.2.6
Delete rows/columns
You can extinguish one or several lines or columns from the project. Mark in each case at least one
cell which is in the line or column to be extinguished. Afterwards you choose the menu point EditDelete row (F7) or Edit – Delete column (Shift+F7). Please remind the difference to combine
rows/columns.
5.4.2.7
Insert rows/columns
Here you mark a cell of the row or column, about or before, where a new one should be inserted.
With the menu point Edit - Insert row (F8) insert or Edit - Insert column (Shift+F8) you can insert a
new line or column in the project.
5.4.3 Select material
At a self created grid in WinIso 3D you have to fill the grid with material. This has to be made for
every level. The best way is to use the view with the lowest number of levels and click systematically
from level zero till the end.
It is most clear if you first fill solids, afterwards the inside and outside climate and at last the hollow
cavities with materials.
For easier navigation remind chapter 4.1.1 and 5.3
5.4.3.1
Fill cells
First choose a material from the project you defined before. Select one or more cells and fill them
with the selected material or by clickling
, with F2 or with a right mouse click in the single cells.
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5.4.3.2
Fill area
Coherent surfaces can be filed regardless of the grid lines with another material.
Hint: To the better overview you are able to do coherent surfaces, with click on
They get a black outline. With a second click you can undo the outline.
in the toolbar.
To show or hide the grid lines click on View>>Visualization>>Grid full
Step 1:
Select material in drop down list.
Step 2:
Select a single cell with clicking left mouse button. More cells can be selected by
holding left mouse button.
Step 3:
Fill selected cells with
in the toolbar (or F2, or Edit>>Fill selected cells)
5.4.4 From 2D to a 3D project
The use is easier with more complicated details if the project is defined in WinIso2D and is imported
in WinIso3D afterwards. For the treatment in WinIso2D you follow please the separate manual.
You can load an existing 2D file with File>>Import WinIso2D file or CTRL+Shift+l
The selected file is opened as a new 3D project. The dialog view has to be opened new by clicking
. The 2D file should be saved with minimal grid before.
The 2D file is made as a front view with the length 1000mm. To bring the cut in the right view it has
to be rotated a bit.
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Example: Horizontal cut through a wooden window frame profile
1. Insert position
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2. Change to side view
3. Rotate the view 90° with Edit>>Turn>>90°
4. Change to plane view
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5.4.5
5.4.5.1
Add objects
Alternative 1 „Copy and Paste“
This method doesn’t work in the 3D editor. Please use the function File>>Import WinIso2D object.
5.4.5.2
Alternative 2 „Import“
This function offers more options than „Copy and paste“ with the insertion. For example, the object
to be inserted can be turned round the import point, or be shone.
Step 1:
Mark the cell where you want to import the object.
(always the top left one)
Step 2:
Import of a saved WinIso project with the function File>>Import WinIso2D file. Now you have to
select a file which contains the object you want to insert. If you chose a file it will be imported and a
window displays where you can set the options for the import.
5.4.5.3
Information for import
The object is inserted only in the chosen layer. If several layers exist, the object can be inserted
several times.
During the insertion missing grid lines are automatically generated. If the project crosses the
maximum number of the elements, you are drawn the attention by an announcement. In this case
the object is not inserted. The objects which were provided with the DOS program Isotherm cannot
be inserted. All materials of the object which do not exist in the project yet are taken over in the
project data bank. If a material exists in the project as well as in the object, is checked whether both
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materials are identical. If at least one material quality is not the same, the material is incompatible
and following dialogue window is opened:
You can take over the suitable material with the material qualities to the current project (option
button "keep") or define the material by another name under which it is inserted then in the project
(option button "take over").
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5.4.6 Edit levels
Change to the view where you want to edit. Keep in mind that you always just edit the current level.
Example: Make window profile to the corner of the window
Top view
Side view
Front view
In the front view you are able to edit level to level.
Plane 0 is the inside air, here nothing must be adapted. Plane 1 available materials go „on edge“
around the corner. Moreover it is advisable to go from the left to the right by the layers and to fill the
heights with F5 and split according to the thickness and to fill the cells. You repeat this step for all
planes.
New Planes are created according to the splitting in the top view.
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6 Calculation
6.1 Before calculating
Before you calculate the program it has to be splitted. The easiest way is to do it manual with pushed
CTRL-button and the left mouse click.
Here it must be split in all views individually. Every material plane should be arranged at least by 2-3
elements.
The whole cutting should be chosen large enough for a consistent result. (In our example about 1 m x
1 m)
Split at first roughly the front view
Go through your cuts after details and split all material planes and crossover in the different views.
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6.2 Select calculating parameters
With the menu point Edit calculate parameters you can set some frame conditions which take
influence to the calculation.
Autorelax:
The relaxfactor speeds up the calculation. This factor is determined new after every calculation with
the selection button Autorelax.
Ralaxfactor:
With this choice button the Relaxfaktor can be also selected by hand. Interrupt the calculation and
put new values in the input field. Nevertheless, the choice of the right Relaxfactor requires some
experience. With a choice of an unfavorable value the calculation can become unstable.
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Convergence demand and temperature change:
This value is a criteria for the abortion of the calculation and sets the width of the temperature in
10-³ °C (1mK). In every flow of the calculation loop this span is new calculated. After every calculation
loop the at last calculated span of the temperature change is compared to this value. If this value is
reached or fallen short, and is also the convergence demand for the relative heat flow change, the
calculation is finished.
Convergence demand relative heat flow change:
This value is another criterion for the abortion of the calculation and gives the relative difference
between the supplied and delivered heat flow. After every calculation loop the calculated value is
compared to this value. If this value is reached or fallen short, and is also the convergence demand
for the relative heat flow change, the calculation is finished.
Temperature depending values:
Every project can be calculated with identity values independent of temperature or dependent on
temperature. The calculation with identity values independent of temperature is normally executed.
Thereby the program is always calculated a second time after the first calculation (2 iterations). If you
want to calculate identity values dependent on temperature, you can fix in the input field the
number of iterations, how often the calculation should be executed. This kind of the calculation is a
special case and is not used regularly.
Number of runs:
This value says how often calculation runs will run through, until the worth K, relax, dt and dq in the
dialogue supervise calculation are updated. In every run the temperatures are new calculated for all
elements with variable temperature. The smaller this value is, the more exactly the calculation can
be followed or influenced.
During the calculation you can supervise in the dialogue calculation pursue the development of the
calculation and if necessary interrupt or finish. To change the calculation parameters, you must
interrupt the calculation before. The control of the relaxfactors is also possible during the calculation.
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The input field Calculation steps defines the number of calculation runs. In the logarithm coordinate
system the development of the calculation is described with following values:
k:
Current run of the calculation loop.
relax/autorelax:
Current value of the relaxfactor.
dt: n
Width of the temperature change after the last calculation run.
dq:
Relative difference between the delivered and discharged heat flow after the last calculation run.
This value is indicated graphically by the red beams in the co-ordinate system. The convergence
behavior of the calculation can be pursued well.
*** x. RUN ***
Current calculation run (Iteration).
Hint:
By calculation with gases which are defined as user def. the surface emissivity is not considered.
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6.3 Start calculation
Start the calculation by clicking on
in the toolbar or via Calculate>>Start with reset of project.
7 General evaluation
7.1 Cell information
By clicking
selected cell.
in the toolbar, an information window is opened which contains information of the
Headline:
Number of column and row(horizontal distance of the beginning of the project, vertical distance to
the beginning of the project), material number (cell width and height)
Material, temperature of the cell, heat flow and heat conductivity in x- and y-direction are displayed
in the current section.
If more cells are selected with Shift and the cursor button, the field T shows the mean temperature
and the field Q the sum of the heat output.
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7.2 Information about project materials
You can find out about the menu point Material - info about materials... about all materials used in
the project closer. The whole volume which takes the material in the project as well as the whole
heat flows are displayed.
The sum of all heat flows Q should be zero, otherwise the project isn’t splitted enough detailed.
The sum of all heat flows of one algebraic sign is the total heat loss of the selected area. With these
values a punctual heat bridge can be calculated by hand.
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7.3 Visualization
7.3.1
Visualization of temperature fields
This visualization is suitable only after a calculation. Via
in the tool bar or the menu point ViewVisualization-Temperature fields you are allowed to indicate the topical temperature distribution in
the project.
Therefore the topical temperature of the material is shown for every cell instead of the colour of the
material in colour. You can change under the menu point Options>>change colour between a false
colour representation and a blue-white-red-visualization.
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With the menu point Options – Range of values - Temperature... you are able to define the range of
temperature. All temperatures beyond this interval are shown white.
The three option buttons have the following meaning:
• Fixed interval from -20 °C to +20 °C.
• Interval is based on the lowest and highest temperature in the project.
• You can define an interval by yourself.
The editing field Step has no meaning in this connection. The suitable temperature scale to this
interval can be faded in via View - Visualization - Scale.
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7.3.2 Visualization of heat flow fields
Just as with the temperature representation the project should also have been also calculated here.
With the toolbar button
or the menu point View – Visualization – Heat flow you can display the
current heat flow in your project. In every cell the current heat flow is indicated in colour. Here you
can also choose between a false colour representation and a blue-white-red-visualization and fade in
a suitable scale.
You can also define the interval with the menu instruction Options – Range of values – Heat flow. All
heat flows out of this interval are shown in white.
The three option buttons have following meaning:
• Fixed interval from 0 W/m² to 100 W/m².
• Interval is based on the lowest and highest temperature in the project.
• You can define an interval by yourself.
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7.3.3 Visualization of isotherms
For the better evaluation of the calculated project you can also indicate the isotherm lines which are
to be seen in each of the representations described on top. Activate the isotherm lines with click on
in the toolbar or the menu point View - Isotherms.
With the menu instruction View>>Visualization>>Without fields you can fade out material fields.
You can change the settings via Options>>Range of values>>Isotherms.
Three option buttons have the same meaning like with the visualization of the temperature fields. In
addition, you can also fix the step width. E. G. , min-15 max. +20 step 5
Note: -15, -10, -5, 0, 5, 10, 15, 20
Hint: About the menu point View>>Inscription>>Temperature isotherms the temperature is
indicated to every isotherm line. You can define with the order Options>>Line width isotherms... the
pixel width of the isotherms.
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In the uppermost input field you can fix the pixel width with which all isotherm lines are shown
whose temperature line is in the defined interval (Options - Range of values - Isotherms...). In
addition, the announcement from up to three special isotherm lines which are also in the defined
area can be fixed. Therefore select the temperature and the desired pixel width in the input fields
under Exceptions. The besides used colour is behind it in clips and cannot be changed. If you give the
value 0 as a pixel width, the width defined on top with the topical colour is used to the
representation of the isotherm line for the isotherms. If you like to show blue, e. g. only 10 °isotherm lines in the width of 3 pixels and the colour, then you give in the second line the suitable
values and put in the first and third line the pixel width on 0.
7.4 U-Value
With the instruction Tools - U-Value (Alt+F2) or the button
you can calculate a linear U-value in
the project. Therefore a cell must be selected with variable temperature by which the U value goes
through. If several cells are selected, the cell selected last is used for the calculation. Then the
program checks whether the U value can be determined obviously, which means whether the cell is
between a heat source and a heat sink. If this is the case, the corresponding U value is displayed in
the dialogue field an additional in the project are through a red horizontal or vertical line.
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7.5 min. /max. surface temperature
With the command Tools – min./max. button
the minimum and maximum temperature is
calculated for the view of the current project fRSI=(Tsi - Taußen) / (Tinnen - Taußen) and displayed with the
manual inscription.
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7.6 Evaluation of special windows
7.6.1 𝑼𝒇 -Value
For determining the 𝑈𝑓 -Value like in EN ISO 10077-2 it counts:
𝐿2𝐷 − 𝑈𝑝 ∗ 𝑙𝑃
𝑈𝑓 =
𝑙𝑓
𝑄 … 𝑇𝑜𝑡𝑎𝑙 ℎ𝑒𝑎𝑡 𝑓𝑙𝑜𝑤[𝑊�𝑚]
𝐿2𝐷 =
𝑄
𝛥𝑇
𝐿2𝐷 … 𝑇𝑤𝑜 𝑑𝑖𝑚𝑒𝑛𝑠𝑖𝑜𝑛𝑎𝑙 𝑡ℎ𝑒𝑟𝑚𝑎𝑙 𝑐𝑜𝑛𝑑𝑢𝑐𝑡𝑎𝑛𝑐𝑒 [𝑊�𝑚𝐾 ]
𝛥𝑇 … 𝑇𝑒𝑚𝑝𝑒𝑟𝑎𝑡𝑢𝑟𝑒 𝑑𝑖𝑓𝑓𝑒𝑟𝑒𝑛𝑐𝑒 𝑖𝑛𝑠𝑖𝑑𝑒 − 𝑜𝑢𝑡𝑠𝑖𝑑𝑒 [𝐾]
𝑈𝑓 … 𝑈 − 𝑉𝑎𝑙𝑢𝑒 𝑜𝑓 𝑡ℎ𝑒 𝑓𝑟𝑎𝑚𝑒 𝑙𝑖𝑘𝑒 𝑖𝑛 10077 − 2 [𝑊� 2 ]
𝑚 𝐾
𝑈𝑃 … 𝑈 − 𝑉𝑎𝑙𝑢𝑒 𝑜𝑓 𝑡ℎ𝑒 𝑝𝑎𝑛𝑒𝑙 [𝑊� 2 ]
𝑚 𝐾
𝑙𝑓 … 𝐿𝑒𝑛𝑔𝑡ℎ 𝑜𝑓 𝑡ℎ𝑒 𝑝𝑟𝑜𝑓𝑖𝑙𝑒 (𝑓𝑟𝑜𝑛𝑡 𝑣𝑖𝑒𝑤) [𝑚]
𝑙𝑃 … 𝐿𝑒𝑛𝑔𝑡ℎ 𝑜𝑓 𝑡ℎ𝑒 𝑝𝑎𝑛𝑒𝑙 𝑠𝑡𝑎𝑟𝑡𝑖𝑛𝑔 𝑓𝑟𝑜𝑚 𝑡ℎ𝑒 𝑝𝑟𝑜𝑓𝑖𝑙𝑒 [𝑚]
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8 Print project
8.1 Print current project (without details)
With File>>Side view you can get a view of the project part which is then printed out with File>>Print
(or CTRL+P).
The so generated graphics can be further used separate. So you can fastly input the generated
pictures in the existing model.
By clicking
in the toolbar the shown part of the project can be put into a buffer and pasted more
times in the model.
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8.1.1
8.1.1.1
Individual control of the print
Printing options
In the menu Options - printing settings the expression of the project can be defined. So you can fix
which components should appear in the later expression and which not.
Edge settings can be defined where you can shift either only the project area or also the legend with
materials, date etc. to the right or below. The following dependence between the topical project
view and the pressure options exists:
View
Material fields
Temperature fields
Heat flow fields
Without fields
Material
Active
Inactive
Inactive
Inactive
Scale
Inactive
Active
Active
Inactive
The in each case inactive options can be neither changed nor be printed out. To the control the print
format about the menu order File - Side view should be checked before printing and if necessary be
changed afterwards.
Behind the material name the conductivity L or the transitional opposition R of the suitable material
is additionally given. Moreover, the name of the licensed company is given in the lower edge. Now in
the legend, in the lower edge of the expression, the Qtotal - value is printed out in addition.
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8.1.1.2
Size of the graphic in the printing
It is possible to make the size of the printing bigger or smaller. You can get to this setting with
Options – Print.
The factor is fixed by shifting the regulator in the field Size of the graphics for the enlargement or
reduction of the graphics. A value between 0 and 1 reduces the graphics. Values more than 1
increase the expression. The value 2 corresponds of the double ones, the value 10 to the tenfold size
of the graphics in the expression.
8.1.1.3
Additional text information
In the menu File information... the possibility exists to define 3 lines with at most 70 signs in each
case which appear if requested in the project printing.
Every line can be centered individually flush left, or be formatted flush right. If the information
should be printed, the controlling small box INFO LINES must be activated under the menu point
Options - printing. The printing position is above the material announcement or above the
temperature or heat flow scale.
8.1.1.4
Mix colour and hatching of the printing
In the material data base you can assign to every material a freely eligible colour as well as one of 20
firmly defined shadings. During the editing on the screen the possibility exists to switch over between
these both representations. The single cells are filled either with the colour or with the shading of the
suitable material.
For the project printing the possibility insists on mixing these both representations. About the order
View>>Visualization>>Colour / hatching (printing) can fix for every project material how it should be
shown in the printing.
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A material can be defined on the printing either with that colour, with the defined shading, black or
white. In addition the material must be selected first in the list field on the left. Afterwards the
representation is fixed by the choice of the suitable radiobutton on the right. With the both buttons
under you can fix for all materials whether these are printed out only in colour or only in shading.
The following picture shows a printing where some materials are displayed in colour and other ones
in hatching.
These settings are just according to the printing and doesn’t change the project itself.
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8.1.2 Manual inscription
With the right mouse key the topical project can be marked for later presentations quite individually.
There is the possibility to define new texts, to work on available texts or to shift. In addition, all
inscriptions can be faded in or faded out according to demand. With the memory of the project all
defined inscription texts with the suitable qualities and the position are saved in the project.
8.1.2.1
Insert inscription
With low-spirited CTRL key and also low-spirited right mouse key a new inscription text is inserted in
the topical project. Therefore in the dialogue manual inscription the creation of the text has to be
fixed.
You can fix the text, the text colour and the type-size. Moreover there is the possibility to define the
text clear and with connecting line between the text position and the relation cell. The relation cell is
always the cell on which the mouse was with the mouse click. The relation cell as well as the text can
be shifted later to another position. The inscription text can be defined of course also regardless of
the relation cell (e. g. editor, date, project description...). Then, however, no connecting line should
be indicated. If no text is defined and OK is pressed, the dialogue shuts without changes.
In both fields under current cell values the current temperature and the current material name of the
relation cell is indicated. With both controlling boxes in contents these values can be taken over in
the text field or be extinguished again from the text. Of course the contents of the text can be
changed arbitrarily, even if one or both controlling boxes are activated.
Both fields, if activated, have one more meaning:
If the text contains the material name or the temperature of the cell, this is updated by a change of
the cell immediately. So, e. g. the name is updated if the cell is defined with another material .
According to a calculation the new cell temperature is automatically updated in the text, if the old
temperature was indicated before.
8.1.2.2
Edit inscription
If the cursor is on the first or second sign (catch area) of an inscription text, this can be worked on by
concurrent pressure of CTRL and the right mouse key. In addition the dialogue described on top with
the topical settings is opened. It is also possible to change the inscriptions about the menu point
View - Inscription - Manual inscription. In addition the following dialogue is opened, with the defined
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inscription on the left side can be edited with the button CHANGE. Alternatively you can also
doubleclick on the desired entry. Afterwards the dialogue described on top with the topical values is
opened. In addition, the possibility exists to extinguish one or all inscriptions from the project.
All changes are updated by clicking OK.
8.1.2.3
Move inscription
If the cursor is like while changing on the first or second sign (catch area) of an inscription text, this
can be shifted with low-spirited SHIFT key and low-spirited right mouse key to any position in the
project area. However, the relation cell of the inscription can be also changed. In addition the cursor
must be in the relation cell. Afterwards the end of the connecting line can be shifted with lowspirited SHIFT key and at the same time low-spirited right mouse key to the new relation cell. With
active controlling box temperature or name the inscription text is adapted immediately to the new
relation cell. One end of the connecting line is positioned always automatically in the middle of the
relation cell. For the same relation cell several inscription texts can be also defined in different
positions.
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8.1.2.4
Font settings for the printing
You can change the settings by clicking on Options → Print font…
8.1.2.5
Set font for manual inscription
You can assign an own font to every manual inscription. The font is put as follows. Hold the control
key low-spirited and click in the drawing on the desired position, with it you receive the following
dialogue box:
With the button Font style… you can change the font in a dialogue box as you did it with changing
the font for the printing.
8.1.2.6
Fade in/out inscription
With the menu instruction View>>Inscription>>manual inscription you can show or hide the
inscription of the whole project at any time.
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9 DXF-Exchange files
9.1 What are DXF-Exchange files?
It is often the case that files which e. g. were prepared with AutoCAD or another CAD system are
continued to work on by other programs or that programs prepare files which are then fed and
continued to work on with a CAD program. To make the exchange of drawings possible between
different computer systems and to provide application programs with CAD data, the drawing
exchange format DXF was defined. DXF files are standard ASCII text files. They can be translated in
the format of CAD systems easily or be processed by other programs for the purpose of special
analyses. All implementations of AutoCAD accept data in this format and are able to convert these
data into an AutoCAD database and the other way. You can both feed (import) and produce from the
current project DXF files with WinIso 3D (export).
9.2 Import DXF-File
You can generate a drawing exchange file with the command DXFOUT from an existing drawing in
AutoCAD. You are able to load a DXF file via the menu point File - Load DXF in WinIso 3D after you
have opened a new project feed and cannot continue working. Lines (vertical, horizontal, diagonal)
and quarter circular arcs can be fed. The circular arcs are shown as right angles. All other drawing
elements are ignored. The coordinates are interpreted in millimeter and a grid line arises from any
imported line. In the dialogue window Selection Layer you have to mark from which layer the lines
should be imported. More selections are possible.
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10 Hints for faster calculation
Control the calculation parameters by
clicking on Calculate>>Edit parameters… in
the menu bar.
With the convergence requirements you
define when the stationary condition is
achieved for the program. Change the
presetting here only very carefully (like in the
right picture) when you are conscious about
the consequences for the result precision.
The calculation process is at the fastest if you
make sure that you are in the material
country area and isotherms etc. is turned off
for the time before the calculation start. You
see this that only the badge material fields is
pressed in as represented in the right picture.
Many computer, particularly laptops have integrated a power management program in the operating
system with which possibly the processor achievement is throttled (mostly under system
control>>energy options). If you raise the processor achievement, the calculation time will be
shorter.
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11 Excursion
11.1 Normative references
· Prescription for energy saving heat saving and energy saving equipments in buildings (energy saving
prescription EnEV) from 1. October 2009
· DIN 4108-2:2003-07, Heat insulation and energy saving in buildings part 2: Minimum requirement
to heat insulation
· DIN 4108-3:2001-07, Heat insulation and energy saving in buildings part 3: Clima related humidity
insulation, calculations and hints for planning and execution
· DIN 4108 additional page 2:2006-03, heat insulation, energy saving in building, examples for
planning and execution
· DIN V 4108-4:2004-07, heat insulation, energy saving in building, characteristic values for humidity
and heat
· DIN EN ISO 10077-1:2006-12, heat related behavior of windows and doors, calculation of heat
transmission coefficients part 1: simple version
· DIN EN ISO 10077-2:2003-12, heat related behavior of windows and doors, calculation of heat
transmission coefficients part 2: numeric version
· EN 13947:2007-07, heat related behavior of faces, calculation of heat transmission coefficients
· DIN EN 673:2003-06, glass in buildings – calculate the heat transmission coefficient (U-value)
· EN ISO 10211-1:1995-11, heat bridge in high-buildings – heat flows and surface temperatures – part
1: General calculations (ISO 10211-1:1995)
· EN ISO 10211-2:2001-06, heat bridge in high-buildings – heat flows and surface temperatures – part
2: linear heat bridges (ISO 10211-2:2001)
· DIN EN ISO 6946:2003-10, heat transmission resistance and coefficient, calculation
· DIN 18516-1:1999-12, outside surface face, ventilated part 1: requirement and testing basics
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11.2 Climatic conditions
Calculation of…
Climate inside
Climate outside
-values for windows
and faces and Ψ-values for
glass- or panel
connections
Norms
EN ISO 10077-2
(normal)
EN ISO 13947
(corners)
Isotherms, surface
temperatures,
for
determination to mind
mildew of window
connections
Isotherms, surface
temperatures for
determination of
condensate of window
connections
DIN 4108-2
(windows)
DIN 4108 Bbl.2
(corner)
DIN 4108-3
(window)
(corner)
Ψ-value of window
connections
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DIN 4108 Bbl.2
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11.3 Material database
DIN V 4108-4:2004-07, heat insulation
and energy saving in buildings
DIN EN ISO 10077-2:2003-12, heat
related behavior of windows and
doors, calculation of heat
transmission coefficients part 2:
numeric version
DIN EN 673:2003-06, glass in
buildings – calculate the heat
transmission coefficient (U-value)
DIN EN ISO 6946:2003-10,
heat transmission resistance and
coefficient, calculation
DIN EN 12524
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Window profiles:
Because of the same value of the normal 𝑅𝑠𝑒 -value (𝑅𝑠𝑒 = 0,04
radiation/convection (𝑅𝑠𝑒 = 0,04
outside 0.04, 0°C, 80%.
𝑚2 𝐾
),
𝑊
20°C, 50%.
and the 𝑅𝑠𝑒 - value for
these good ventilated cavities have to be set with air
Because of the value inside for 𝑅𝑠𝑖 (𝑅𝑠𝑖 = 0,13
less radiation/convection (𝑅𝑠𝑖 = 0,20
𝑚2 𝐾
)
𝑊
𝑚2 𝐾
𝑊
𝑚2 𝐾
)
𝑊
isn’t the same like the 𝑅𝑠𝑒 - value for
) you have to set those cavities with air inside 0.20,
Further, inside corner areas can be seen as areas with less radiation/convection (𝑅𝑠𝑖 =
0,20
𝑚2 𝐾
).
𝑊
Roomside
Direction of
heat flow
Die the resulting areas with air inside 0.20, 20°C, 50%.
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Page 53

Arbeitsanleitung WinIso 2D

Transcription

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