Overview
Base data definition used in the heat pump model. It defines the
table table_Qdot_Co
which gives the condenser heat flow rate and table_Pel which gives the electric
power consumption of the heat pump. Both tables define the power values
depending on the evaporator inlet temperature (defined in first row)
and the condenser outlet temperature (defined in first column) in W.
The nominal mass flow rate in the condenser and evaporator are also
defined as parameters.
Calculation of nominal mass flow
rates
- General calculation ṁ = Q̇nominal / cp /
ΔT
Condenser mFlow_conNom
- According to EN 14511 on water bound condenser side
ΔT = 5 K
- According to EN 255 (deprecated) on water bound condenser
side ΔT = 10 K
Evaporator mFlow_evaNom:
- According to EN 14511 on water/glycol bound
evaporator side ΔT = 3
K
- Possible calculation for air bound evaporator side
ṁeva,nominal = (Q̇con,nominal -
Ṗel,nominal) / cp / ΔT under the
assumption (no literature source so far) of ΔT = 5 K
-
MAy 7, 2020 by Philipp Mehrfeld:
Add description of how to calculate m_flows
-
December 10, 2013 by Ole Odendahl:
Formatted documentation appropriately
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