-14°C
Brine system
Propane system
CO2 system
1
2
3
12
4
5
6
10
11
7
8
9
13
14
15
16
Safety assessment of plate heat exchangers, Fakta Beder:
Position
Function
Type
Volume (litres)
Design pressure
according to:
Safety
category
Gas group
PSxV
15
Evaporator
brine/propane
SWEP
V25x70
3.8 litres (propane)
EN378-2-2000 chp. 5
Ambient temperature
< 32ºC (low-pressure side)
i.e. 32ºC/11.2 bar (abs)
1
1
3.8*11.2 =
42.5
14
Suction gas heat
exchanger
SWEP
B12x70
1.9 litres (liquid side,
propane)
EN378-2-2000 chp. 5
Ambient temperature
< 32ºC (high-pressure side)
i.e. 43ºC/14.6 bar (abs)
1
1
1.9*14.6 =
27.7
14
Suction gas heat
exchanger
SWEP
B12x70
2.4 litres (gas side,
propane)
EN378-2-2000 chp. 5
Ambient temperature
< 32ºC (low-pressure side)
i.e. 32ºC/11.2 bar (abs)
1
1
2.4*11.2 =
26.9
16
Cascade
propane/CO2
SWEP
V27x80
4.3 litres (propane)
EN378-2-2000 chp. 5
Ambient temperature
< 32ºC (high-pressure side)
i.e. 32ºC/11.2 bar (abs)
1
1
11.2*4.3 =
48.1
16
Cascade
propane/CO2
SWEP
V27x80
4.4 litres (CO2)
Safety valve SFV
15 30 bar
1
2
4.4*30 =
132
13
Heat recovery
(superheat remover)
SWEP
B27x50
2.8 litres (propane)
EN378-2-2000 chp. 5
Ambient temperature
< 32ºC (low-pressure side)
i.e. 43ºC/14.6 bar (abs)
1
1
2.8*14.6 =
40.9
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