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M Pitarch-Mocholi, E Navarro-Peris, J Gonzalvez-Macia, JM Corberan / 12th IEA Heat Pump Conference (2017) O.1.9.3 Figure 6: a) Heating COP and b) Condensing pressure as a function of subcooling and condenser size (Tw,ci=30oC) Figure 7a) shows the condenser dedicated area as a function of condenser size for: de-superheat, two-phase and subcooling. The dedicated area for de-superheat and subcooling slightly decreases with condenser size, about 2% when going from a condenser height of 0.35 m to 0.7 m. On the other hand, the dedicated area for the two-phase flow increases 4%. The percentage of dedicated area for subcooling is decreasing with size, although the total area increases. Figure 7b) shows the refrigerant and water temperature profile in the condenser for two different condenser size, 0.35 m and 0.70 m. It can be seen a better temperature match between refrigerant and water at the bigger condenser. Figure 7: a) Condenser dedicated area as a function of condenser size b) Refrigerant and water temperature profile in the condenser (Tw,ci=30oC) 10PDF Image | Comparative analysis of two subcritical heat pump boosters using subcooling
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