5 - AHK

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5 - AHK

Energy Efficiency + Sustainable Building Design
Best Practice Building Examples from Germany
Dr. Günter Löhnert
[email protected]
Tel / Fax 030 / 8270 419-0
419 0 / -2
2
sol·id·ar planungswerkstatt
Barstraße 10, D-10713 Berlin
Tallinn, February 26, 2014
BSU, Hamburg
Paul-Wunderlich-Haus, Eberswalde
Energy Efficiency in Context
with Sustainable Building Design
Energy Plus School, Hohen Neuendorf
Zero Energy House, Seoul
Dr. Günter Löhnert sol°id°ar planungswerkstatt berlin
[email protected]
@
p
Tel/Fax 030 / 8270 419-0 / -2
Barstraße 10, 10713 Berlin Central Building Leuphana Uni, Lüneburg
2
Roadmap of Presentation
EnOB Funding
Experiences and Results from the German Funding
P
Programme
E
Energy
O ti i d Building
Optimized
B ildi
Sustainability
y Assessment DGNB / BNB
Project Experiences / Best Practice Buildings
- Paul-Wunderlich-Haus Administration in Eberswalde
- New Headquarter BSU Administration in Hamburg
- Energy Plus Primary School in Hohen Neuendorf
Conclusion
3
Primary Energy
National
Demand
Funding
< 50% EnEV
(< 100 kWh/m²a) Programme
Integrated
g
Design
Process
Reports
and
Documents
Monitoring
and User
Acceptance
Analysis
EnOB
Analysis
and
Evaluation
EnBau
EnSan
Material for
Education
Renunciation
Lean
of Large
Building
Mechanical
Strategies
Cooling
g
Energy
Efficiency
and Solar
Optimization
Sequential
W k h
Workshops
4
Main Issues on Energy Efficient Building Design
A  Thermal Quality of Building Envelope / Compactness
U-values of Envelope | Avoid Thermal Bridges | Air Tightness
Use of Innovative Materials and Technologies
B  Heating
g and Ventilation in Winter
Minimize Energy Demand | Use of Storage Mass | Heat
Recovery | Adequate Control | Building Automation
C  Cooling and Ventilation in Summer
Summer Thermal Insulation | Natural / Nocturnal Ventilation
Passive Cooling | Preconditioned Fresh Air
D  Optimization of Daylighting Strategies
Adequate Sizing and Disposition of Windows | Light Guidance
Efficient
ff
Solar
S
& Glare
G
Control
C
| Efficient
ff
Electric Lighting
5
Current Status of EnOB Demonstration Buildings
Typology
House Building
Administration
Indust. Production
Institutes, Schools
Miscellaneous
Total
Current Projects
EnBau
EnSan
1
0
5
1
0
5
8
11
6
22
New Buildings
R f bi h
Refurbishment
15
Finalised Projects
EnBau
EnSan
1
12
16
5
4
0
4
6
5
0
30
52
38
23
Totals
14
27
4
23
22
90
90
6
25 EnBau Demonstration Buildings:
Ran
nking
Application of Different Technologies
13
02
04
10
2
4
06
08
05
01
1
11
09
13
14
12
15
09
03
3
12
07
11
7
0
Lamparter
L
t
1
50
ec (99)
Ecote
%
150
UBA (06)
Lebe nshilfe (06)
KfW ((05)
FhG- ISE (03)
N
et
N IZ (04), TM Z (04)
-Z
er
o-
En
er
m eier (03)
B OB (06), Pollm
E nergon (06)
gy
5)
E nergieforum ( 05), Solvis (05
S IC (06), Lam p
parter (03)
Z U B (03)
Wagner (01)
W
GM S (06), GIT (05 )
75
125
Prim
m ary Ene rgy Cred its [kW h/m
m ² NFA a
a]
100
100
DB-Netz
125
75
FHG-ISE
2
50
Ecotec
25
Hübner
Energy Cred
dits (Renew
wables/Co
o-Generattion)
EnOB Energy Balance and Future Strategy
150
TU-BS
ZUB
10
Pollmeier
50
25 %
25
Solvis
> 10
< 10
= 00
Pi
Primary
E
Energy (HVACL) [kWh/
[kWh/m²² NFA a]]
285
kWh/m²a
Reference
Minimize Energy Demand (by Savings and Efficiency)
8
Development of Global Assessment Systems
Nigeria
Kenya
Namibia
lM
tthe
90´
During
D
GBC
i late
Memberships
th 90
blast
l s t hi
7 years
9
DGNB / BNB Overview on Categories / Criteria Groups
Economical
Quality
Ecological
Quality
Socio-cultural and
Functional Quality
22,5%
22,5%
22,5%
The assessment system
includes 6 categories
100%
10%
22,5%
Quality
Process Q
y
Technical
Quality
5 categories represent
building performance
weighting is different
Location Profile
The category
Location Profile
is stated separately
10
GOLD Paul-Wunderlich-Haus
77,9 %
Pilot Certification_V1_2008
89,5 %
1,18
Ecological Quality (22,5 %)
Process Quality (10 %)
Systematic Commissioning 51
91,2 %
01 Global Warming Potential
Quality Assurance of …
Building Construction 50
02 Ozone Depletion Potential
03 Photochemical Ozone Creation Potential
Quality of Executing Companies /…..
Prequalification 49
04 Acidification Potential
05 Eutrophication Potential
Building Site, Building Process 48
06 Risks to the Local Environment
Requirements for an Optimal… .
Utilisation and Management 47
08 Sustainable
S t i bl Logging
L
i
/ Wood
W d
Sustainability Issues in Tender and Placing 46
10 Primary Energy Demand
Not Renewable (PEnre)
Optimization and Complexity of Planning 45
11 Total Primary Demand and Amount of PEre
Integrated Design 44
14 Fresh Water Demand and
Quantity of Wastewater
P j t Preparation
Project
P
ti
43
15 Demand of Space
84,6 %
Technical Quality (22,5 %)
Dismantling , Separation and Utilisation 42
Economic Quality (22,5 %)
Cleaning and Maintenance 40
Heat Insulation and Protection …..
against Condensate 35
16 Building-related
Life Cycle Costs
Sound Insulation 34
17 Stability of Value
100 %
Fire Protection 33
87,4 %
Socio-cultural and Functional Quality (22,5 %)
30 Bicycle Comfort
26 Barrier-free Building
22 Visual Comfort
18 Thermal Comfort in Winter
31 Design and Urban Quality
27 Space Efficiency
23 Influence of the User
19 Thermal Comfort in Summer
32 Art in Architecture
28 Capability of Conversion 28
24 Building-related Outdoor Qualities
20 Indoor Air Quality
29 Public Accessibility
25 Safety and Incident Risks
21 Acoustic Comfort
11
Architect: GAP Berlin
Paul Wunderlich Haus
Paul-Wunderlich-Haus
12
12
Architect: Thomas Winkelbauer, GAP Berlin
Bioclimatic Design: teamgmi, Vaduz
Innovative Climatic Building Design
by Use of Geothermal Energy
Primary Energy Demand100 kWh/m
kWh/m²a
a
for Heating, Cooling, Ventilation and Lighting
21.631 m² BGF
Building Cost
KG 300+400
1.263 €/m² (NFA)
Dezernat 1
Dezernat 2
Landrat
Park garage
Dezernat 3
5 Buildings
DGNB-Gold-Certifikate
G
Go d Ce t ate
Best score of 1,18 (01/2009)
13
Paul-Wunderlich-Haus: Objectives
…Reconstruct a City Centre
…Develop Renewable Energies
…Optimize Life Cycle Costs
Create an Inviting Atmosphere
…Represent
R
t Modern
M d
Public
P bli Services
S
i
…Offer
Offer a Fascinating Architecture
14
Paul-Wunderlich-Haus: Façades
Each
Building
has its own
Façade
Administration and Art – a Liaison
South Facade of Landrat Building
Central
Lobby
Zero Energy
House,Entrance
Seoul
… from Pavillonplatz to Service and Administration Center
15
Paul-Wunderlich-Haus: Spatial Impressions
More than 400 Cultural Events / a
Combi-Offices
Paul-Wunderlich-Art-Kabinett
Transparent Administration
Multi-Purpose-Rooms
Atrium as Part of the Energy Concept
Plenary Hall
Optimization of Daylighting
16
User Flexibility
Different Spatial Variants and Office Concepts
Single
S
geO
Offices
ces / Ce
Cell O
Offices
ces
Double Office Spaces / Group Offices
Combi Offices (Home Base plus Core Zone)
Open Plan Offices
Clustered Working Places in Landscape Offices
Service Areas
Cell Offices
Landscape Office
Combi Offices (Home Base + Core Zone )
17
Paul-Wunderlich-Haus: Features
Pavillonplatz
Winner of Competition: GAP
PWH – the New Center
Individual Lamp Development
Concept of Night Flushing
Energy Concept
Thermal Comfort
Renewable Energy
593 Energy Piles out of 850 drilled piles of approx. 9 m each – Photovoltaik (120 kWpeak / ca.1.000 m²) on the roof and at the facade of park garage.
18
Architect: sauerbruch hutton Berlin
BSU Administration Building Hamburg
19
BSU-Neubau
in Hamburg-Wilhelmsburg
BSU New Headquarter
in Hamburg-Wilhelmsburg
4 Ambitious Goals
1. Primary Energy Demand 70 kWh/m²a
2 Heating Demand
2.
15 kWh/m²a
kWh/m a
3. DGNB Certificate
GOLD
4. Building Costs
1 500 €/m²GFA
1.500
20
BSU Hamburg
21
Focus: Comfort at Workplaces
1
2
3
4
5
6
7
8
Thermal Conditioning and Ventilation
Thermal Comfort
Daylight and Electric Lighting
Solar Control and Glare Protection
Occupants Information / User Participation
Detailed Energy Monitoring
Monitoring of Comfort and User Satisfaction
Assessment of Sustainability - Pre-Certifikate
22
1 Thermal Conditioning and Ventilation
Heating and Ventilation in Winter
Thermally activated
ceiling for heating
Pre-heated intake air
Cooling and Ventilation in Sommer
Exhaust air via noise
protected overflow
p
elements
Intake and exhaust air
via
i window
i d
or night
i h
ventilation louver
Thermally activated
ceiling for heating
Exhaust air via noise
protected overflow
elements
Atrium
Atrium
Night ventilation
Office
Thermal conditioning
by activating the floor
in selected areas
Corridor
Office
Corridor
Thermal conditioning
by activating the floor
in selected areas
source: ARGE sha / R&R / OPB
23
4 Solar Control and Glare Protection
6
Office Façade
1
2
3
Façade element
Opening
Manual night ventilation
louver, acoustic efficiency
4 Acoustic panel
5 Venetian blind, motorized
6 Glare protection, manually
9 Reflecting surface
10 Suspension
S
i point
i t
12 Raised floor
14 Reinforced concrete ceiling
source: sha / sol·id·ar
24
5
Occupants Information / User Participation
Office Façade
1
2
3
4
7
8
13
Façade Element
Opening
Manual night ventilation louver, acoustic efficiency
Acoustic panel
Ceramic covering,
g, p
partially
y benden round
Metal plate siding, partially benden round
Reinforced concrete pillar
source: sha / sol·id·ar
25
Plus Energy School in Hohen Neuendorf
26
Energy PLUS Concept





Highly insulated building envelope according to passive house standard
New hybrid ventilation concept combines natural and mechanical venting
Optimized daylighting performance providing max. daylight autonomy
Use of renewable energy sources such as biomass and solar energy (PV)
Integration of innovative building components i.e.
i e switchable glazing
27
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
GROUND FLOOR
classroom
small classroom, flex room
groups, multi-functional
area
specialist rooms
administration, teachers
wardrobe
collection room
teaching material
library
kitchen
cafeteria,
f t i assembly
bl hall
h ll
sport equipment
sports hall
after-school care club
Teachers` lounge
HVAC equipment room
28
28
Integrated Concept of „Home Area“ – Different Configurations
Spatial extension
into the corridor
Exhibition
Rest area
Small Groups
Project Teamwork
Lecture and Relax
29
Home Base – Hybrid Ventilation
Multifunctional
area
Natural Ventilation
Overflow area
Classroom
Mechanical Ventilation
H b id V
Hybrid
Ventilation
til ti
30
Home Base – Natural Ventilation
motor controlled full-height ventilation windows
warm air
cool air
Additional windows for manual operation
31
Home Base – Daylight and Solar Control
Daylight from two sides
Daylight from one side
Lightshelf
Redirected
sunlight
Diffuse
light
32
Daylight and Solar Control
33
Construction Specifications
U Values of Building Envelope:
U-Values
Exterior wall 1
0,15 W/m²K
Exterior wall 2
0,13 W/m²K
Windows
0,80 W/m²K
Roof
0,11 W/m²K
Ground slab
0,10 W/m²K
34
ENERGY PERFORMANCE towards ENERGY PLUS
Primary Energy Demand:
23 kWh/m2a
Primary Energy Generation:
24 kWh/m2a
Resulting PE Demand:
< 0 kWh/m2a
Integrated PV-Plant:
55 kWpeak
35
Life Cyle Costs (LCC)
Life Cycle Cost comparison of a German standard new building according EnEV 2009
and the new school accumulated for 50 years based on 4% of annual energy price rise
36
Energy PLUS School, BNB Gold
37
Challenges: History and Development towards Energy+
primaryy energy co
onsumption
n heating [kkWh/m²a]
300
WSVO 1977
minimum requirements WSVO, EnEV
250
primary energy
purchased energy
useful energy
WSVO 1984
200
solar house
150
WSVO 1995
Goals
G
l off the
th German
G
Government on CO2
Reduction:
2020
- 40 %
2030
- 50 %
2040
- 70 %
2050
- 95 %
building
practice
gp
100
EnEV 2002/2007
low-energy-house
50
0
–50
1980
EnEV 2009
research/
case studies
EnEV 2014/16?
3-liter-house
passive house
zero energy buildings
zero-energy-buildings
1990
2000
near-zero-energybuildings
energy-plusbuildings
2010
2020
2030
38
Best Practices towards Zero-Emission and Energy +
HHS Planer + Architekten
SMA Solar, Niestetal
R. Disch Architekten
Sonnenhaus, Freiburg
Production
Office
John M.
M Frank
AS Solar, Hannover
Building
Categories
Lang+Volkwein
Energy+ Home, Darmstadt
Residential
W. Sobek
EffizienzhausPlus, Berlin
Fabi Architekten
Solaraktivhaus, Regensburg
Schulte-Frohlinde
Solon SE,
SE Berlin
HHS Planer + Architekten
SMA Solar Academy, Niestetal
Education
IBUS Architekten + Ingenieure
Grundschule, Hohen Neuendorf
39
Conclusion
Conclusions on
EnOB Experiences
1. We do have the knowledge on suitable
technologies
g
and adequate
q
design
g p
processes –
we only have to use it in a reasonable way.
2 An
2.
A Integrated
I t
t d Design
D i P
Process is
i iinevitable
it bl ffor
future Zero or Energy+ Building Concepts in
order
d tto ensure comfort
f t and
d save energy and
d
operating costs on a life cycle consideration.
3. Successful buildings require good planning by
qualified interdisciplinary planners from the
very beginning. The investment into a Design Team
is the most profitable yield for the client
client.
40
BSU, Hamburg
Paul-Wunderlich-Haus, Eberswalde
Energy Plus School, Hohen Neuendorf
Zero Energy House, Seoul
[email protected]
@
p
Tel/Fax 030 / 8270 419-0 / -2
Barstraße 10, 10713 Berlin Central Building Leuphana Uni, Lüneburg
41
Thank you for your attention!
[email protected]
Tel/Fax 030 / 8270 419
419-0
0 / -2
2
Barstraße 10, 10713 Berlin
Tallinn, February 26, 2014

5 - AHK

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