IEA Solar Heating and Cooling Programm - NachhaltigWirtschaften.at

IEA SHC Task 38
Monitoring Procedure
COP _ el _ cold _ DEC =
( E16
+ E17)
⋅(1
−
∆H
f ( ∆P
AHU _ cool
REF
; ∆P
DEC
) + E18
+ E19
⎡ kWh
⎢
⎣kWh
th
elec
⎤
⎥
⎦
Eq. 58
Where:
∆ H is the Cooling Energy from AHU, without auxiliary (conventional)
-
AHU _ cool
contribution
REF DEC
- ( E16
+ E17)
⋅(1
− f ( ∆P
; ∆P
) is the Electricity Consumption for fans (only the
additional part for DEC relevant components, like: exhaust air humidifier, sorption
wheel, exhaust air regeneration heat exchanger,…)
- E 18 + E19
is the electricity consumption for motors of desiccant wheel and other
additional DEC-components
To take in consideration also additional PE-consumption for solar components, further is
defined:
COP _ el _ cold _ DEC _ Sol =
∆H
AHU _
=
REF
( E16
+ E17)
⋅(1
− f ( ∆P
; ∆P
cool
DEC
) + E18
+ E19
+ E1+
E2
⎡ kWh
⎢
⎣kWh
th
elec
⎤
⎥
⎦
Eq. 59
With:
- E1 is the electricity consumption of the pump in the primary loop of the collector field.
- E2 is the electricity consumption of the pump in the secondary loop of the collector
field.
Finally the thermal COP of the DEC-AHU has to be calculated:
COP _ th _ DEC
=
∆H
AHU _ DEC
Q6a
Eq. 60
Where Q6a is the regeneration heat for the sorption wheel coming from the solar tank.
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