Planning and calculation

Transcription

Planning and calculation
Selection of the most suitable products for
pressure maintenance | degassing | water make-up
Pressurisation & Water Quality
Balancing & Control
Thermostatic Control
engineering ADVANTAGE
Reliable pressurisation is the basic requirement for a gentle and trouble-free operation of heating,
solar and cooling water systems. Our planning and calculation basics support you in choosing the right
products, their size and performance.
PNEUMATEX Planning and calculation
2
Table of contents
Page
Calculations
General equations
4 – 5
Statico selection
6
7
Quick selection
Equipment
Compresso selection
8
9
Quick selection
Equipment
Transfero selection
10
11
Quick selection
Equipment
Aquapresso selection
12
13
13
Aquapresso in potable hot water systems
Aquapresso in pressure-boosting systems
Aquapresso pressure losses
Zeparo selection
14
Approx. pressure loss (DP) – Separator
15
Zeparo Collect
Safety technology
16
Devices for sealed heating systems
Glossary
17
17
18 – 19
19
20
21
General terms
Geometry
Pressures
Volumes
Temperatures
Capacities
3
Calculation
Pressure maintenance
Heating systems TAZ ≤ 110 °C following EN 12828, solar systems ENV 12977-1
General equations
VA Water capacity of the system VA = VA central heating + VA district heating pipe
VA = vA · Q + VA district heating pipe
vASpecific water capacity, table 2
Ve Expansion volume
Ve = e · VA
e Expansion coefficient for tmax, table 1
VV Water reserve
VV ≥ 0,005 · VA ≥ 3 litre
P0 Miniumum pressure 2)
P0 = HST/10 + pD + 0,3 bar ≥ pZ
pa Initial pressure
pa ≥ P0 + 0,3 bar
:System design
Q Installed heat capacity
pD (TAZ), table 1
Statico
Df Pressure factor
Df = (pe + 1)/(pe – P0)
VNNominal volume
VN≥ (Ve + VV + 1,1 · VK 1) + 5 3) ) · Df
VN ≥ 80 litre with Statico + Vento
VK Collector volume 1)
pe Final pressure
pe ≤ PSV – ASV
ASV = 0,1 · PSV for PSV > 5 bar 4)
ASV = 0,5 bar
for PSV ≤ 5 bar 4)
Compresso
VNNominal volume
VN≥ (Ve + VV + 1,1 · VK 1) + 5 3) ) · 1,1
pe Final pressure
pe = pa + 0,2
pe ≤ PSV – ASV
TecBox
Q = f(HST)
:page 8
VNNominal volume
VN≥ (Ve + VV + 1,1 · VK 1) + 5 3) ) · 1,1
pe Final pressure
pe = pa + 0,4
pe ≤ PSV – ASV
TecBox
Q = f(HST)
:page 10
VN≥ VA · ∆e + 1,1 · VK 1) + 5 3)
∆e for tR and tmin, table 1
Transfero
Intermediate vessels 5)
VNNominal volume
Our on line calculation program
SelectP! is based on an advanced
calculation method and data base.
Therefore results may deviate slightly
in marginal areas.
In solar systems to ENV12977-1: collector volume VK that can evaporate when not in operation; otherwise VK = 0.
The formula for the minimum pressure P0 applies to the installation of the pressure maintenance on the suction
side of the circulation pump. In case of a pressure-side installation P0 is to be increased by the pump pressure ∆p.
3)
Add 5 litre when a Vento is installed in the system.
4)
The safety valves must work within these limits.
5)
Necessary for: heating systems tR > 70 °C, chilled water systems tmin < 5 °C, not for Transfero TV and TPV.
1)
2)
Table 1: e expansion coefficient and pD vapour pressure
t ( TAZ, tmax , tR , tmin) | °C
–34
–28
–24
e | 0 % glykol * = 0 °C
–
–
–
pD | bar
–
–
–
e | 30 % glykol * = -16 °C
–
–
–
pD | bar
–
–
–
e | 40 % glykol * = -24 °C
–
–
0
pD | bar
–
∆e chilled water systems t < 5 °C 0,0123
∆e heating systems tR > 70 °C
–
–16
–10
0
20
–
–
→
–
–
0
→
→
→
→
–
–
30
40
50
60
70
80
90
100
105
110
0,0037 0,0074 0,0118 0,0168 0,0224 0,0287 0,0356 0,0432 0,0472 0,0514
–
–
–
–
–
–
0,0083 0,0131 0,0184 0,0240 0,0299 0,0363
–
–
–
–
–
–
0,043
–
–
–
–
0,2
0,4
0,0501 0,0576 0,0615 0,0655
–
–
0,1
0,3
0,0028 0,0127 0,0181 0,0239 0,0300 0,0364 0,0431 0,0502 0,0576 0,0653 0,0693 0,0734
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
0,2
0,01
0,008
0,004
0,001
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
0,0063 0,0132, 0,0208 0,0248 0,0290
Table 2: vA approx. water capacity ** of central heatings referred to the installed heat capacity Q
tmax | tR
°C
90 | 70
80 | 60
70 | 55
70 | 50
60 | 40
50 | 40
40 | 30
Radiators
vA litre/kW
14,0
16,5
20,1
20,6
27,9
36,6
–
–
Flat radiators
vA litre/kW
9,0
10,1
12,1
11,9
15,1
20,1
–
–
–
Convectors
vA litre/kW
6,5
7,0
8,4
7,9
9,6
13,4
–
Air handlers
vA litre/kW
5,8
6,1
7,2
6,6
7,6
10,8
–
–
Floor heating
vA litre/kW
10,3
11,4
13,3
13,1
15,8
20,3
29,1
37,8
* Antifrogen N
4
35 | 28
** Water capcity = heat generator + distribution net + heat emitters
online calculating and planning with
pa
pe
Precision pressure maintenance
op
Air controlled Compresso or
water controlled Transfero
minimize the pressure variations
between pa and pe.
pre
tim u m ss u re r a n
,3 bar
≥ 0
ar
≥ 0,3
,5 b
P0
ge ≥0
ba
r
Compresso ± 0,1 bar
Transfero ± 0,2 bar
SelectP!
PSV
0+
1
T/
HS
pD
P0 Minimum pressure
pa Initial pressure
pe Final pressure
Statico
P0 is set as pre set
pressure on the
gas side.
Statico
pa is the cold fill pressure
which determines the
water reserve:
pa ≥ P0 + 0,3 bar;
water make-up «on»:
pa – 0,2 bar.
Statico
pe is reached after
heating up to tmax.
pe = PSV – ASV
Compresso
P0 and the switching
points are calculated
by the BrainCube.
 page 4
Compresso
pa fallen short of during
cooling, then compressor
«on».
pa = P0 + 0,3
Compresso
pe exceeded by heating
up, then air-side solenoid
valve «open».
pe = pa + 0,2
Transfero
P0 and the switching
points are calculated
by the BrainCube.
 page 4
Transfero
pa fallen short of during
cooling, then pump «on».
pa = P0 + 0,3
Transfero
pe exceeded by heating
up, then water-side
solenoid valve «open».
pe = pa + 0,4
Table 3: DNe standard values for expansion pipes with Statico and Compresso
Length up to approx. 30 m
DNe20253240506580100
Heating TAZ ≤ 110 °C | Solar Q | kW
1.0001.7003.0003.9006.00011.000
15.000
23.000
Cooling tmax ≤ 50 °C
Q | kW
1.6002.7004.8006.3009.60018.100
24.600
36.800
Table 4: DNe standard values for expansion pipes with Transfero T_ *
T_ 4.1
T_ 6.1
T_ 8.1
T_ 10.1
T_ 4.2
T_ 6.2
T_ 8.2
T_ 10.2 TPV...P
Length up to approx. 10 m DNe
32
32
32
32
50 | 40
50 | 40
50 | 40
50 | 40
50
HST | m
all
all
all
all
< 20 | ≥ 20 < 25 | ≥ 25 < 35 | ≥ 35 < 50 | ≥ 50 all
32
40 | 32
40 | 32
40 | 32
50 | 40
50 | 40
50 | 40
50 | 40
65
HST | m
all < 25 | ≥ 25 < 30 | ≥ 30 < 45 | ≥ 45 < 25 | ≥ 25 < 35 | ≥ 35 < 48 | ≥ 48 < 65 | ≥ 65 all
* 2 expansion pipes DNe for Transfero TV, TPV due to degassing; 1 expansion pipe DNe for Transfero T, TP
Table 5: DNe standard values for expansion pipes with Transfero TI
TI ..0.2
TI ..1.2
TI ..2.2
TI ..3.2
50 65 80 100
65 80 100 125
5
Statico
Selection
Heating systems TAZ ≤ 110 °C, without addition of antifreeze
Quick selection
PSV
2,5bar
TAZ ≤ 100 °C
P0 1,0bar
HST ≤ 7m
Radiators
Flat radiators
| 70
90 90 | 70 70 | 50
Q | kW
10
15
20
25
30
40
50
60
70
80
90
100
130
150
200
Example
Q =200 kW
PSV= 3bar
HST = 7m
Radiators 90 | 70 °C
Selected:
Statico SU 300.3
P0 = 1 bar
Reduce the factory-set pre set
pressure from 1,5 bar to 1 bar!
Technical data:
: Datasheet Statico
Statico SD
in a heating system
up to approx. 100 kW
Radiators
90 | 70
Flat radiators
90 | 70
Radiators
70 | 50
90 | 70
Nominal volume VN | litreNominal volume VN | litre
25
18
12
18
12
12
35
18
18
25
18
18
35
25
25
35
18
18
50
35
35
35
25
25
80
35
35
50
35
25
80
50
50
80
35
35
120
80
50
80
50
50
120
80
80
80
80
50
120
120
80
80
80
80
140
120
120
80
80
80
180
120
120
120
80
80
180
120
120
140
120
80
300
140
140
180
120
120
300
180
180
200
140
120
400
300
200
300
180
180
70 | 50
400
300
300
250
500
300
300
400
300
200
500
400
300
300
500
400
300
400
300
300
600
400
400
400
800
500
400
600
400
300
800
500
500
5001000 600
500
800
500
4001000800
600
6001000 800
600
800
500
5001500800
800
700
1500
800
8001000600
600 15001000 800
800 15001000 8001500800
600 200010001000
900 150010001000 1500 800
800 200015001000
1000 200015001000 15001000 800 200015001500
1500 300020001500 200015001500 300020002000
ZUT
∆p
HB
HST
ZUVL
Zeparo ZUVL for the central
separation of micro bubbles
DSV...H
tmax
Statico SD
Zeparo ZUM for the central
separation of sludge,
with magnetic action
PSV
H | TH
Zeparo ZUT for automatic venting
during filling and during draining
DLV
DH
Q
DNe
tR
ZUM
Water make-up
connection
pNS
Pleno PI
System example –
may require changes to meet local legislation
6
Flat radiators
90 | 70
Nominal volume VN | litre
25
18
18
35
25
25
50
35
25
50
35
35
80
50
50
80
80
50
120
80
80
120
80
80
140
120
80
180
120
120
180
120
120
200
140
120
300
180
180
300
200
180
Pleno Pl water make-up as pressure
maintenance monitoring device
according to EN 1282
Further accessories, product and
selection details
: Datasheet Pleno
: Datasheet Zeparo ZU
: Datasheet Accessories
PSV 3,0bar
P0 1,5bar
HST ≤ 12m
PSV3,0bar
P0 1,0bar
HST≤ 7m
Note for TAZ above 100 °C
Above 100 °C the static height HST decreases in the quick selection table.
TAZ = 105 °C: HST – 2 m
TAZ = 110 °C: HST – 4 m
Pre set pressure setting P0
P0 = (HST/10 + pD) + 0,3 bar
Recommended: P0 ≥ 1 bar
Filling pressure, Initial pressure
SelectP!
pD: table 1, page 4
pa ≥ P0 + 0,3 with cold, but vented system
Equipment
Lock shield valve DLV
Expansion pipe
Pleno
: Datasheet Pleno
Vento
: Datasheet Vento
Zeparo
: Datasheet Zeparo ZU | ZI, ZE
Secured shut-off with draining for expansion vessels according to EN 12828,
DLV 20 up to VN 800 litres, DN 40 for VN 1000 – 5000 litres by customer.
According to table 3 on page 5.
Water make-up as pressure maintenance monitoring device according to EN 12828.
Conditions:
•Pleno PI without pump: required fresh water pressure: pNS ≥ P0 + 1,5 | pNS ≤ 10 bar,
•Pleno PI 6 | PI 9 with pump: pa Statico (: page 4) within the working pressure range DPP of the Pleno.
Degassing and central venting.
Conditions:
•pe, pa Statico (: page 4) within the working pressure range DPP of the Vento,
•VA Vento ≥ VA water capacity of the system.
Air vent Zeparo ZUT, ZUTX or ZUP at each high point for venting during the filling and during the draining
process. Separator for sludge and magnetite in each system in the main return to the heat generator. For
micro bubbles in the system flow, if possible, before the circulation pump. The condition is that no central
degassing (e.g. Vento, Transfero) is installed. The static height HB according to the table above the micro
bubble separator must not be exceeded.
tmax
|
°C 908070605040302010
HB
|
mWs15,0
13,4
11,7
10,08,46,75,03,31,7
Statico SU
in a heating system
up to approx. 700 kW
ZUT
∆p
Vento VP...E for the central venting
and degassing, with water make-up
as pressure maintenance monitoring
device according to EN 12828
Statico SU
DSV...DGH
tmax
Zeparo ZIO...S optional for micro
bubbles or sludge particles, in this
case configured as sludge separator
HST
ET
PSV
H / TH
selection details
: Datasheet Vento
Q
DH
tR
DLV
ZIO...S
Water
make-up connection
A)
System example –
Vento VP...E
7
Compresso
Selection
Quick selection
TecBox
TAZ ≤ 100 °C 1 compressor
C 10.1 F CPV 10.1 C 20.1
* 50 % output per compressor,
full redundancy in the framed
area
**The value decreases with
TAZ = 105 °C by 2 m
TAZ = 110 °C by 4 m
Example
Q =900kW
Radiators 90 | 70 °C
TAZ=100°C
HST = 35m
PSV= 5bar
Selected:
TecBox C 10.1-6 F
Primary vessel CU 600.6
Setting of BrainCube:
HST = 35m
TAZ=100°C
Check PSV: ( page 9)
for TAZ = 100 °C
PSV: 35 / 10 + 1,3 = 4,8 < 5 o.k.
Technical data:
: Datasheet Compresso
Compresso C 10.1 F
TecBox with 1 compressor
on the primary vessel, precision
pressure maintenance ± 0,1 bar
with Pleno P water make-up
2 compressors *
C 10.2
C 20.2
Q | kWStatic height HST | m **
Nominal volume VN | litre
≤ 300
46,1
33,6
81,4
46,1
81,4
200
200
200
200
400
46,1
33,6
81,4
46,1
81,4
300
300
200
200
500
46,1
33,6
81,4
46,1
81,4
300
300
200
200
600
46,1
33,6
81,4
46,1
81,4
400
400
300
300
700
46,1
33,6
81,4
46,1
81,4
500
500
300
300
800
42,7
33,6
81,4
46,1
81,4
500
500
400
300
900
37,7
33,6
81,4
46,1
81,4
600
600
400
400
1000
33,6
33,6
81,4
46,1
81,4
600
600
400
400
1100
30,2
30,2
81,4
46,1
81,4
800
800
500
400
1200
27,4
27,4
79,2
46,1
81,4
800
800
500
500
1300
24,9
24,9
73,2
46,1
81,4
800
800
500
500
1400
22,7
22,7
67,9
46,1
81,4
1000
1000
600
500
1500
20,8
20,8
63,3
46,1
81,4
1000
1000
600
600
2000
13,8
13,8
46,7
34,0
81,4
1500
1500
800
800
2500
9,1
9,1
36,2
26,4
73,9
1500
1500
1000
1000
3000
5,4
28,7
21,0
61,4
2000
2000
1500
1500
3500
23,1 17,1 52,1 30003000 15001500
4000
18,6 14,0 45,0 30003000 20001500
4500
14,8 11,4 39,3 30003000 20002000
5000
11,6
9,2
34,7
3000
3000
2000
2000
5500
8,8
7,3
30,7
4000
4000
3000
2000
6000
6,2
5,6
27,3
4000
4000
3000
3000
6500
3,9
4,0
24,4
4000
4000
3000
3000
7000
21,8 50005000 30003000
8000
17,3 50005000 40003000
9000
13,7
4000
4000
10000
10,5
4000
4000
ZUT
ZUT
Compresso
TecBox C 10.1 F
HB
ZIO...S
DSV...DGH
Intermediate
B)
tmax
vessel DU
ET
PSV
Zeparo ZIO...S configured as micro
bubble separator in the flow,
as sludge separator in the return
8
∆p
DLV
Compresso
A)
Primary vessel CU
Intermediate vessel DU for return
temperatures above 70 °C
selection details
: Datasheet Pleno
Radiators
Flat radiators
90 | 7070 | 5090 | 7070 | 50
C 10.1
for heating systems
up to approx. 3 000 kW
Primary vessel
Q
DLV
ZIO...S
DNe
tR
DLV
Water make-up connection
C)
pNS min P0 + 1,7 bar,
max. 10 bar
System example –
Pleno P
HST
Compresso
Secondary vessels
TecBox equipment
Setting values
Check PSV: for PSV ≤ 5 bar
for PSV > 5 bar
SelectP!
= TecBox + Primary vessel + Secondary vessel (optional)
The nominal volume can be allocated to multiple vessels of the same size.
Precision pressure maintenance ± 0,1 bar
+fillsafe water make-up
+vacusplit degassing
C
•
CPV
•
•
•
C 10.1 F:
on the primary vessel up to 800 litres
C 10 | C 20 | CPV 10:
floor standing
for TAZ, HST and PSV in the «Parameter» menu of the BrainCube
TAZ = 100 °C
TAZ = 105 °C
PSV ≥ 0,1 · HST + 1,3
PSV ≥ 0,1 · HST + 1,5
PSV ≥ (0,1 · HST + 0,8) · 1,11
PSV ≥ (0,1 · HST + 1,0) · 1,11
TAZ = 110 °C
PSV ≥ 0,1 · HST + 1,7
PSV ≥ (0,1 · HST + 1,2) · 1,11
The BrainCube determines the switching points and the minimum pressure P0.
Equipment
Expansion pipes
Pleno
integrated into the CPV
: Datasheet Pleno
Vento
integrated into the CPV
: Datasheet Vento
Zeparo
According to table 3 on page 5. With multiple vessels with prorata output per vessel.
Included in the scope of delivery.
Water make-up as pressure maintenance monitoring device according to EN 12828.
Conditions:
•Pleno P without pump, without control (control through BrainCube Compresso):
required fresh water pressure: pNS ≥ P0 (BrainCube) + 1,9 bar | pNS ≤ 10 bar,
•Pleno PI 6 | PI 9 with pump, with control: pa, pe Compresso (: page 4) within the working pressure
range DPP of the Pleno.
Degassing and central venting.
Conditions:
•pe, pa Compresso (: page 4) within the working pressure range DPP of the Vento | CPV,
•VA Vento ≥ VA water capacity of the system.
degassing (e.g. Vento, Compresso CPV) is installed. The static height HB according to the table above the
micro bubble separator must not be exceeded.
tmax
|
°C 908070605040302010
HB
|
mWs15,0
13,4
11,7
10,08,46,75,03,31,7
Compresso C 10.2
TecBox with 2 compressors
in front of or next to the primary
vessel, precision pressure
maintenance ± 0,1 bar
with Vento VP...E degassing
and water make-up
ZUT
∆p
Compresso
A)
Secondary vessel CG...E
Compresso
B)
Primary
vessel CG
DSV...DGH
Compresso
TecBox C 10.2
for heating systems
tmax
Zeparo ZIO...F for the central
separation of sludge
PSV
Q
selection details
: Datasheet Vento
HST
tR
DNe
DLV
DLV
ZIO...F
C)
System example –
Vento VP...E
9
Transfero
Selection
Quick selection
TecBox
Primary vessel
TAZ ≤ 100 °C 1 pump
2 pumps *
Radiators
Flat radiators
| 70 70 | 50 90 | 70 70 | 50
T_T_T_T_T_T_T_T_TPV 90 4.16.18.110.1 4.26.28.210.2
19.2 P
Q | kWStatic height HST | m ** Nominal volume VN | litre
≤ 300 28,438,255,975,5 28,438,255,975,5134,1 200 200
200 200
400 28,438,255,975,5 28,438,255,975,5134,1 300 300
200 200
500 28,438,255,975,5 28,438,255,975,5134,1 300 300
200 200
600 28,438,255,975,5 28,438,255,975,5134,1 400 400
300 300
700 28,438,255,975,5 28,438,255,975,5134,1 500 500
300 300
800 28,438,255,975,5 28,438,255,975,5134,1 500 500
400 300
900 28,438,255,975,5 28,438,255,975,5134,1 600 600
400 400
1000 28,438,255,975,5 28,438,255,975,5134,1 600 600
400 400
Example
=1300 kW
Q
Flat
radiators 90 | 70 °C
TAZ= 105°C
HST = 30m
PSV=
5bar
Selected:
TecBox
TPV 6.1
Primary vessel TU 500
Setting of BrainCube:
HST = 30m
TAZ=
105°C
Check
PSV: ( page 11)
TAZ = 105 °C
for
PSV:
30 / 10 + 1,7 = 4,7 < 5 o.k.
Check
HST:
for TAZ = 105 °C
> 30
HST: 38,2 – 2 = 36,2
Technical data:
Datasheet Transfero
:
1100 28,438,255,975,5 28,438,255,975,5134,1 800 800
500 400
1200 28,438,255,975,5 28,438,255,975,5134,1 800 800
500 500
1300 28,438,255,975,5 28,438,255,975,5134,1 800 800
500 500
1400 28,438,255,974,7 28,438,255,975,5134,1 1000 1000 600 500
1500 28,438,255,773,8 28,438,255,975,5134,1 1000 1000 600 600
2000 28,438,251,268,6 28,438,255,975,5134,1 1500 1500 800 600
2500 24,935,946,062,5 28,438,255,975,5134,1 1500 1500 1000 1000
3000 20,631,440,055,6 28,438,255,673,6134,1 2000 2000 1500 1500
3500 15,726,233,347,8 28,438,253,571,2134,1 3000 3000 1500 1500
4000 10,220,225,839,1 28,438,251,268,5134,1 3000 3000 2000 1500
4500 13,617,629,5 26,837,948,665,6134,1 3000 3000 2000 2000
5000 19,0 24,935,945,962,5134,1 3000 3000 2000 2000
5500
22,933,843,059,2133,5 4000 4000 3000 2000
6000
20,631,439,955,8124,4 4000 4000 3000 3000
6500
18,328,936,652,1114,6 4000 4000 3000 3000
7000
15,726,233,148,2104,1 5000 5000 3000 3000
8000
10,220,225,639,8 80,8 5000 5000 4000 3000
9000
13,6
17,3
30,74000
4000
10000
20,74000
4000
50% output per pump,
*
full redundancy in the
framed area
value decreases with
**The
TAZ = 105 °C by 2 m
TAZ = 110 °C by 4 m
Transfero TPV .1
TecBox with 1 pump, precision
with degassing and water make-up
ZUT
Transfero
Primary vessel TU
for heating systems
Transfero
TecBox TPV .1
Zeparo ZIO...F for the central
selection details
tmax
ET
PSV
DLV
Q
DNe
DPNS min 2 bar, max. 10 bar
ZIO...F
≥ 500 mm
System example –
10
DSV...DGH
Statico SD
tR
HST
Transfero
Secondary vessels
TecBox equipment
SelectP!
= TecBox + Primary vessel + Secondary vessel (optional)
The nominal volume can be allocated to multiple vessels of the same size.
Precision pressure maintenance ± 0,2 bar
+fillsafe water make-up
+oxystop degassing
T
TP
TV
•
•
•
•
•
TPV
•
•
•
TPV...P
• *
•
•
TI
•
* 2 buffer vessels for optimal pressure maintenance
Setting values
Check PSV: for PSV ≤ 5 bar
for PSV > 5 bar
for TAZ, HST and PSV in the «Parameter» main menu of the BrainCube
TAZ = 105 °C
TAZ = 100 °C
PSV ≥ 0,1 · HST + 1,7
PSV ≥ 0,1 · HST + 1,5
PSV ≥ (0,1 · HST + 1,0) · 1,11
PSV ≥ (0,1 · HST + 1,2) · 1,11
TAZ = 110 °C
PSV ≥ 0,1 · HST + 1,9
PSV ≥ (0,1 · HST + 1,4) · 1,11
The BrainCube determines the switching points and the minimum pressure P0.
Equipment
Buffer vessels
Expansion pipes
Pleno
: Datasheet Pleno
Zeparo
At least one Statico SD 35, requirement for TI selection. Setting on P0 of the BrainCube.
Transfero T_: table 4 | Transfero TI: table 5 : page 5
Included in the scope of delivery.
Water make-up as pressure maintenance monitoring device according to EN 12828 in combination with
Transfero T or TV. The control is made through the BrainCube of the Transfero TecBox.
degassing (e.g. Vento, Transfero) is installed. The static height HB according to the table above the micro
bubble separator must not be exceeded.
tmax
|
°C 908070605040302010
HB
|
mWs15,0
13,4
11,7
10,08,46,75,03,31,7
Transfero TV .2
TecBox with 2 pumps, precision
with degassing and
Pleno P for the water make-up
for heating systems
Zeparo ZIO...S for the central
ZUT
Transfero
Secondary
vessel TG...E
Transfero
TecBox TV .2
HST
DSV...DGH
Statico SD
tmax
ET
selection details
: Datasheet Pleno
Transfero
Primary vessel TG
DLV
PSV
Q
tR
DNe
≥ 500 mm
ZIO...S
Pleno P
System example –
11
Aquapresso
Calculation, Selection
Aquapresso in potable hot water systems
Aquapresso save valuable drinking water in potable hot water systems. The expansion water is not lost anymore through the
safety valve but is absorbed by the Aquapresso. The correct setting of the pre set pressure is of importance for a faultless and
reliable operation.
Pre set pressure
P0 = pa – 0,3 bar
The pre set pressure of the Aquapresso is set at least 0,3 bar below the initial
pressure pa.
Initial pressure
pa = pFL
The initial pressure corresponds to the flow pressure pFl. It should be kept at a constant level by means of the installation of a pressure reducer in the cold water line.
Safety valve
PSV=
Nominal volume
(PSV + 0,5) · (P0 + 1,3)
VN = VSp · e · (P0 + 1) · (PSV – P0 – 0,8)
pR
0,8
The non-operative pressure pR in the drinking water network must not exceed 80 %
of the response pressure safety valve.
Quick selection
Heating-up fro m 10 °C to 60 °C
PSV | bar
VSP | litre
Example
VSp =200 litre
pa = 3,3bar
PSV= 10bar
Selected:
Aquapresso ADF 8.10
with full flow-through
P0 = 3 bar
Reduce the factory-set pre set
pressure from 4 bar to 3 bar!
Technical data:
: Datasheet Aquapresso
Aquapresso ADF
with flowfresh full flow-through
in a drinking water heating system
VSp is the nominal volume of the drinking water heater.
e (60 °C, : table 1, page 4)
P0 4,0 bar | pa 4,3 bar
Nominal volume VN | litre Nominal volume VN | litre
50 8888 8888
80 8888 8888
100 12888 8888
150 18
1288 8888
180 18
12
128 8888
200 251212 8 12 8 8 8
250 25181212 1212 8 8
300 35181812 18121212
400 50252518 18181218
500 50352525 25181825
600 80503525 35251825
700 80503535 35252525
800 80505035 35352525
900 140805035 50353535
1000 140805050 50353535
pa
V = Vmax ≤ VD
PSV
pR
Aquapresso ADF
Aquapresso ADF
can be flow through from
the top or from the bottom
VSp
hydrowatch
pa
V = Vmax > VD
PSV
pR
Aquapresso ADF
hydrowatch
Bypass open,
remove handwheel
System example –
12
P0 3,0 bar | pa 3,3 bar
67810 67810
VSp
SelectP!
Aquapresso in pressure-boosting systems
Aquapresso in pressure-boosting systems stabilize the drinking water network and reduce the switching frequency. They can
be installed at the low pressure and high pressure sides of a pressureboosting system. The mains pressure side ist always to be
coordinated with the water supply company.
Approvals
Aquapresso are designed for drinking water systems. As there are no
uniform European standards, please
observe the drinking water approvals for the individual countries with
respect to the selection. These are
decisive for the deployment of flowfresh fully flow-through or no flowthrough Aquapresso.
Aquapresso A...F with bypass
If the max. volumeflow Vmax is larger
than the nominal flow VD for flowthrough Aquapresso A...F, then the
Aquapresso is to be installed with a
bypass. The bypass is to be dimensioned for the difference water quantity with a flowspeed of 2 m/s.
: System examples
: Installation | Operation
Aquapresso on the low side
Aquapresso on the high pressure side
Calculation according to 1988 T5
VN calculation according to DIN 1988 T5
for the restriction of the switching frequency
pA + 1
VN = 0,33 · Vmax · (pA – pE) · s · n
Vmax | m³/h
≤ 7
< 7 ≤ 15
> 15
VN | litre
≥ 300
≥ 500
≥ 800
VD Nominal flow
according to
Datasheet
s Switching frequency | 1/h Pump capacity | kW
20
≤ 4,0
15
≤ 7,5
10
> 7,5
Aquapresso for shock absorption
This topic is very complex and complicated.
We recommend to have the calculation done
by a specialized engineering office.
VN calculation by storage volume V between
working pressure and turn-off pressure
(pE + 1) · (pA + 1)
VN = V ·
(P0 + 1) · (pA – pE)
n Number of pumps | pE Working pressure |
pA Turn-off pressure | Vmax Max. volumeflow pump
Aquapresso pressure losses
0,30
Aquapresso ADF
0,25
0,15
0,20
0,20
0,10
0,15
0,05
0,10
0,00
0,00
ADF 8 – 12 litre
ADF 18 – 35 litre
ADF 50 – 80 litre
0,50
AUF 140 – 600 litre
AGF 300 – 700 litre
AGF 1000 – 1500 litre
AGF 2000 – 5000 litre
0,15
0,10
1,00
1,50
0,20
DP | bar
0,20
0,25
0,00
0,050,00
Aquapresso AUF | AGF
0,25
DP | bar
DP | barDP | bar
0,25
0,30
2,00
1,00
0,00
V | m³/h
0
0,10
0,05
V0,05
| m³/h
0,50
0,15
0,00
1,50
5
2,00
10
15
0
20
25
30
5
10
15
20
25
30
35
V | m³/h
35
V | m³/h
Aquapresso
in a pressure-boosting system
Aquapresso AUF
at the low side;
flow-through from the
top to the bottom
V = Vmax ≤ VD
V = Vmax > VD
V = VD
Bypass open,
remove
handwheel
Aquapresso AUF
Vmax – VD
pE | pA
Aquapresso AUF
P0 at least 0,5 bar below the
minimum supply pressure
pE | pA
Vmax
Aquapresso AU
at the high pressure side;
no flow-through
Aquapresso AU
pE | pA
P0 =0,9 ∙ working pressure
of the peak load pump,
at least 0,5 bar below
the working pressure
Vmax
System example –
13
Zeparo
Selection
Approx. pressure loss (DP) – Separator
Zeparo DN 20 – DN 40 ZUV | ZUVL | ZUD | ZUDL | ZUM | ZUML | ZUK | ZUKM | ZUR |ZUC | ZUCM
0,11
DN 20-22
DP [bar]
0,10
Zeparo DN 20 - DN 40
Zeparo DN 20-40 must operate
within the limits ≤VD.
25
32
40
DN 20-22 *Lateral
DN 20-22
DN25 * Lateral
DN 25
DN 32
DN 40
0,08
0,06
0,04
0,02
0,00
0
1
2
3
4
5
6
7
8
9
10
11
V [m³/h]
Zeparo DN 50 – DN 125 ZIO | ZIK | ZEK
0,22
DN 50
0,20
65
80
100
125
0,18
DP [bar]
0,16
operation is limited to:
Continous flow ≤ VD,
Intermittant flow ≤ VM.
0,14
0,12
0,10
0,08
0,06
DN
DN
DN
DN
DN
50
65
80
100
125
DN
DN
DN
DN
150
200
250
300
0,04
0,02
0,00
0
20
40
60
80
100
120
140
160
V [m³/h]
Zeparo DN 150 – DN 300 ZIO | ZIK | ZEK
0,22
DN 150
0,20
200
250
300
0,18
0,16
DP [bar]
0,14
operation is limited to:
Continous flow ≤ VD,
Intermittant flow ≤ VM.
0,12
0,10
0,08
0,06
0,04
0,02
0,00
0
100
200
300
400
500
V [m³/h]
14
600
700
800
900
SelectP!
Zeparo Collect
A low loss header suitable for the hydraulic coupling of primary and secondary heating circuits complete with deaeration and
dirt separation. They are installed between the heat generator and the heating cicuits. Effective deaeration is only given if the
maximum static height HB is not exceeded : table.
tmax | °C
HB | mWs
9080706050403020 10
15,0
13,4
11,7
10,08,46,75,03,31,7
It is important that the volumetric flow rates between V1 and V2 are suitably adjusted.
Example A: Primary flow rate V1 bigger than Secondary flow rate V2
To be used where the secondary flow rates V2 are reduced through mixing of the return water so that the boiler can no longer
be regulated. Not suitable for condensing boilers : Example B.
Example A: V1 > V2
ZUC | ZUCM
20
22
25
32
40
V1 | m3/h
≤ 1,25
≤ 1,25
≤2
≤ 3,7
≤5
HB
ZUC
ZUCM
V1 ≥ 1,2 V2
Example B: Primary flow rate V1 less than Secondary flow rate V2
Use with condensing boilers and under floor heating systems. The secondary flow rate V2 of the under floor heating circuit is
bigger than the flow rate through the condensing boiler V1. Hot water circuits should be connected on the primary side of the
low loss header.
Example B: V1 < V2
ZUC | ZUCM
20
22
25
32
40
V2 | m3/h
≤ 1,25
≤ 1,25
≤2
≤ 3,7
≤5
HB
ZUC
ZUCM
V1 ≤ 0,8 V2
15
Safety technology
Devices for sealed heating systems
according to EN 12828 with TAZ ≤ 110 °C
heated
directly
with oil, gas,
electricity,
solid fuels
: Datasheet
Accessories
Accessories
Accessories
Accessories
Accessories
Statico | Compresso | Transfero
Pleno
Accessories
Accessories
heated
indirectly
heat exchanger
with vapour or
liquids
General requirements
TIThermometer, display range ≥ 20 % above TAZ
TAZTemperature limiter according to EN 60730-2-9
TC Temperature controller
LAZLow-water protection 2) for roof top installations
PIManometer, display range ≥ 50 % above PSV
SV Safety valve, EN 4126 for vapour emission
Pressure maintenance, e.g. Statico, Compresso, Transfero
Pressure maintenance monitoring device 4), e.g. Pleno
•
•
•
•
•
•
•
•
•
• 1)
•
–
•
• 3)
•
•
Additional requirements for Q > 300 kW/heat generator
LAZLow-water protection 2)
ET Blow tank 5)
PAZPressure limiter
•
•
•
–
• 6)
–
•
–
Additional requirements with slow-action heating
Emergency cooling through thermal discharge protection
or safety heat consumer, e.g. with solid fuel boilers
Temperature controller sufficient according to standard, but not recommended.
Minimum pressure or flow limiters can be used as an alternative. For central roof units above 300 kW not
additionally, 1 low-water protection is sufficient.
3)
Dimensioning for water discharge with 1 litre/kWh possible if the primary temperature does not exceed the
evaporation temperature with the safety valve opening pressure PSV.
4)
Automatic water make-up device (e.g. Pleno) or minimum pressure limiter.
5)
Substitution with additional TAZ and PAZ possible. EN 12828 does not contain constructive specifications.
We recommend to proceed according to the known state of the art of the countries, e.g. SWKI 93-1 in
Switzerland or DIN 4751-2 in Germany.
6)
Only if the vapour pressure pD at flow temperature tpr is bigger than safety valve opening pressure PSV.
1)
2)
Example:
Safety equipment
according to EN 12828
pD (tpr) > PSV
directly heated system
Q > 300 kW
e.g. Statico SU
SV
ET
Q
monitoring device
Degassing with built-in water
make-up, e.g. Vento VP...E
System example –
16
Water make-up
connection
Glossary
General terms
BrainCube
TecBox
Quality features
Name of the new Pneumatex controls in Compresso, Transfero, Pleno and Vento.
Name for Pneumatex compact control units consisting of hydraulic part and BrainCube control.
airproof | silentrun | dynaflex | oxystop | vacusplit | helistill | leakfree | fillsafe | secuguard |
flowfresh
Geometrie
D
Diameter
Characteristic diameter of the device.
H
Height (H, H1, H2, …)
Characteristic overall height of the device.
h
Installation dimensions (h, h1, h2, …)
B
Width
Characteristic overall width of the device.
T
Depth
Characteristic overall depth of the device.
L
Length
Characteristic overall length of the device or the fixture.
SD
Insulation thickness
G
Empty weight
of the device at the time of delivery without the packaging.
S
Connection
Characteristic dimension for the device connection.
SE
Connection in
Characteristic dimension for the device connection for streaming in media.
SA
Connection out
Characteristic dimension for the device connection for streaming off media.
SG
Connection vessel
Characteristic dimension for the device connection to the vessel.
SNS
Connection water make-up
Characteristic dimension for the water make-up connection.
SW
Connection dewatering
Characteristic dimension for evacuation, dewatering operations.
R
Rp
G
Male thread, conical, ISO 7-1
Female thread, cylindrical, ISO 7-1
Female tread, male thread, cylindrical, ISO 228
DN
Nominal diameter
Numeric size specifications for tube dimensions according to the pressure device directive.
VPE
Packaging unit
Standard packaging quantity in a box or pallet. For articles with the specifications of the VPE please
coordinate order quantities smaller than the VPE with the sales office. Items within a VPE always
provide of a functional separate packaging.
17
Glossary
Pressures
HST
18
Static height
Water column between the highest point of the system and the connecting branch of the expansion vessel, for water-controlled pressure-maintaining systems with pump (Transfero) referred to
the suction joint of the pump.
HB
Maximum static height for the deployment of bubble separators
It depends on the temperature conditions at the place of installation of the separator.
P0
Minimum pressure
Lower limit value for the pressure maintenance. It is mainly defined by the static height HST and the
vapour pressure pD. If the value is fallen short of the function of the pressure maintenance cannot
be ensured. For large systems and temperature limits above 100 °C the pressure limiting devices
are triggered.
Statico, Aquapresso: Pre set pressure to be set at the gas side.
Be careful with respect to Aquapresso in drinking water systems! If the drinking water pressure
falls short of the pre set pressure this may lead to pressure blows and to an increased bubble wear
(: Initial pressure pa).
Transfero, Compresso, Vento, Pleno: The minimum pressure P0 is calculated by the BrainCube
control from the static height HST and the vapour pressure pD (TAZ).
pZ
Minimum required equipment pressure
e.g. NPSH requirement for pumps or boilers
pD
Vapour pressure
According to EN 12828 the excess pressure towards the atmosphere to prevent evaporation.
pa
Initial pressure
Lower threshold for an optimum pressure maintenance. During the operation it must always be
above the minimum pressure. We recommend at least 0,3 bar. For systems with minimum pressure limiters this value must be selected such that the triggering of the limiters is prevented in all
operating modes. With respect to Pneumatex devices with BrainCube control the initial pressure is
calculated internally by the control.
Statico: Pressure with minimum system temperature after feeding the water reserve. Water makeup devices in the sense of a pressure maintenance monitoring device according to EN 12828
must be triggered if the value is fallen short of. If the filling temperature is equal to the lowest
system temperature the initial pressure corresponds to the filling pressure. e.g. heating systems:
lowest system temperature ~ filling temperature ~ 10 °C.
Compresso, Transfero: Pressure at which the pump or the compressor must be triggered.
Aquapresso: Pressure of the drinking water network before the Aquapresso. It must also always be
greater than the pre set pressure at flow conditions.
pe
Final pressure
Upper threshold for an optimum pressure maintenance. It must be at least 0,5 bar below the safety
valve response pressure. For systems with maximum pressure limiters it must be selected such that
the triggering of the limiters is prevented in all operating modes.
Statico: The highest pressure to be assumed after the max. system temperature has been achieved.
Compresso, Transfero: The pressure at which the spill device must open at the latest.
Aquapresso: The highest pressure to be assumed after the absorption of the drinking water to be
stored.
PSV
Response pressure safety valve
According to EN ISO 4126-0 the pressure at which the safety valve at the heat generator begins
to open.
Glossary
Pressures
ASV
Closing pressure tolerance
Difference between response pressure and closing pressure for safety valves | EN ISO 4126-1.
OSV
Opening pressure tolerance
Difference between response pressure and opening pressure for safety valves | EN ISO 4126-1.
PS
Maximum admissible pressure
According to the pressure device directive the maximum pressure for which the pressure device
has been dimensioned according to the manufacturer’s specification.
PSCH
Maximum admissible pressure Switzerland
Pressure up to which the expansion vessel does not require an approval according to the Swiss
directive SWKI 93-1 (PS · VN ≤ 3000 bar · litre).
Df
Pressure factor
Ratio between the required nominal volume VN and the water absorption volume Ve + VV for expansion vessels.
pNS
Fresh water pressure
Flow pressure of the fresh water network, e.g. drinking water network, that is available before the
water make-up device.
DPP
Working pressure range
Pressure range for which a water make-up or degassing device has been designed. It must be adjusted to the working pressure of the system.
DPVD
Pressure loss with nominal flow
Pressure loss referred to the nominal flow capacity of a device, e.g. Aquapresso or Zeparo.
Volumes
e
Expansion coefficient
According to EN 12828 the factor for the calculation of the expansion volume from the water
capacity. In this case, referred to the solidification point.
VA
Overall system water capacity
According to EN 12828 the overall water capacity of the heating system that is involved in the
volume expansion.
vA
Specific overall system water capacity
Overall water capacity of the heating system that is involved in the volume expansion, referred to
the installed heating surface output.
VN
Nominal volume
According to the pressure device directive the entire internal volume of the pressure compartment
of the expansion vessel.
VA
Water capacity for which a device is rated
Characteristic performance parameter that describes up to which water capacity the device, e.g.
Vento, can be used.
VK
Water content collector panels
For solar systems to ENV 12977-1 the collector volume which can phase change to steam has to
be added to the connecting pipes volume.
Ve
Expansion volume
According to EN 12828 the volume expansion of the water capacity of the heating system between the min. and max. system temperature.
VV
Water reserve
According to EN 12828 the water quantity in the expansion vessel for the compensation of water
losses caused by the system.
19
Glossary
Temperatures
20
tmax
Maximum system temperature
Maximum temperature for the calculation of the volume expansion. For heating systems the dimensioned flow temperature at which a heating system is to be operated with the lowest outside
temperature to be assumed (standard outside temperature according to EN 12828). For cooling
systems the max. temperature that is achieved due to the operation mode or standstill, for solar
systems the temperature up to which an evaporation is to be avoided.
tmin
Lowest system temperature
Lowest temperature for calculating expansion volumes. The lowest system temperature is equal
to the freezing point. It is dependant on the percentage of antifreeze additives. For water without
additives tmin = 0.
tpr
Primary flow temperature
Maximum flow temperature in primary circuit of heat exchangers (indirect fired).
tR
Return temperature
Return temperature of the heating system with the lowest outside temperature to be assumed
(standard outside temperature according to EN 12828).
TV
Maximum flow temperature
Maximum flow temperature for which a device is equipped according to the normative and safetyrelated requirements. TV may be greater than TS if the device is installed at a place with t ≤ TS,
e.g. in the system return.
TAZ
Safety temperature limiter | Safety temperature controller | Temperature limit
Safety device according to EN 12828 for the temperature protection of heat generators. If the
set temperature limit is exceeded the heating is turned off. Limiters are locked, controllers automatically release the heat supply if the set temperature is fallen short of. Setting value for systems
according to EN 12828 ≤ 110 °C.
TS
Maximum admissible temperature
According to the pressure device directive the maximum temperature for which the pressure device or the fixture has been dimensioned according to the manufacturer’s specification.
TSmin
Minimum admissible temperature
According to the pressure device directive the minimum temperature for which the pressure device or the fixture has been dimensioned according to the manufacturer’s specification.
TW
Maximum admissible temperature for water make up
The highest admissible temperature for make up units as part of a pressurisation or degassing system. This only applies if TW < TS.
TB
Maximum admissible bag temperature
Maximum admissible permanent temperature for the butyl bag.
TBmin
Minimum admissible bag temperature
Minimum admissible permanent temperature for the butyl bag.
TU
Maximum admissible ambient temperature
Maximum ambient temperature for the installation of a device.
Glossary
Capacities
Q
Heat capacity
Blowing-off capacity of a safety valve referred to the vapour emission according to the component
inspection.
QPSV
Heat capacity
Blow off capacity of a safety valve referred to the vapour emission according to the component
inspection.
QPSVW
Heat capacity
Blow off capacity of a safety valve for water flow according to specification, related the to heat
output of the heat generator, 1 kW = 1 l/h.
VD
Flow rate | Nominal flow
Nominal throughput of a device, e.g. Aquapresso, Zeparo or nominal flow rate of a compressor or
pump.
VM
Maximum flow
Maximum throughput of a device, e.g. Zeparo.
KVS
Flow parameter
Throughput of a device with a differential pressure of 1 bar.
VNS
Water make-up capacity
Nominal capacity of a water make-up device.
U
I
PA
SPL
IP
Voltage
Nominal voltage for an electric device.
Electric current
Admissible current load for a device.
Electric load
Load for an electric device.
Sound pressure level
Sound pressure level dB(A) – effective perceived.
Code for protection against moisture and physical contact
according to EN 60529.
21
22
23
Additional information
:Online calculation software SelectP!
DSXINEN01.2013
System design:
The products, texts, photographs, graphics and diagrams in this brochure may be subject to alteration by TA Hydronics
without prior notice or reasons being given. For the most up to date information about our products and specifications,
please visit www.tahydronics.com.

Planning and calculation

Transcription

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