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Buildings 2020+. EnErgy sourcEs 5.5. Condenser The task of a condenser is to release the heat flows absorbed in the evaporation process to the heat user. This is the heat flow absorbed on the evaporator side and the compressor power, which during compression was transferred to the cooler as a heat flow. The heat flow to be discharged on the condenser can be calculated by Eq. (5.9): where: Qc – Qo – Pin – Qc = Qo + Pin (5.9) total output of the condenser (kW), total output of the evaporator (kW), total compressor output (kW). To be able to release the absorbed heat flow, the surface temperature of the condenser must be higher than the temperature of the heated building (Fig. 5.12). Fig. 5.12. Condensation process (Source: own elaboration) Heat dissipation zone: The superheated, gaseous refrigerant cools at a constant pressure pc from the superheated temperature to the condensation temperature tc. The heat flow released is absorbed by the fluid from the heated building. That heat zone accounts for 5-15% of the total heat transmission of the condenser. Condensation zone: Condensation takes place in this zone. The saturated refrigerant vapour condenses at a constant pressure pc and a constant temperature tc while releasing latent heat. The condensation zone accounts for around 85-90% of the total heat transmission of the condenser. 156PDF Image | Heat Pumps 978-83-65596-73-4
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