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Experiments on the performance evaluation of heat pump cycle using CO2 based binary refrigerant mixture.
Number: pap. ID: 420
Author(s) : KOYAMA S., SHIKICHI K., TAKATA N.
Summary
In this study, the cycle performance of heat pump system using CO2 based binary refrigerant mixtures has been investigated experimentally. The main component of binary refrigerant mixtures is CO2, while the second component of the mixture is selected from three kinds of refrigerant: DME (dimethylether), R1234ze(E) (trans-1,3,3,3-tetrafluorpropene) and R32. Experiments to evaluate cycle performance for the three kinds of CO2 based binary refrigerant were carried out in three operating modes: water heating, air heating and air cooling modes, where the heating/cooling capacity and the degree of superheat at the evaporator outlet were kept constant in each mode and the charge amount of refrigerant was changed to find the maximum COP. Then, the effects of the second component on COP were examined in each operating mode.
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Details
- Original title: Experiments on the performance evaluation of heat pump cycle using CO2 based binary refrigerant mixture.
- Record ID : 30002958
- Languages: English
- Source: Proceedings of the 23rd IIR International Congress of Refrigeration: Prague, Czech Republic, August 21-26, 2011. Overarching theme: Refrigeration for Sustainable Development.
- Publication date: 2011/08/21
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Indexing
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Themes:
Heat pumps techniques;
HFCs;
CO2;
Hydrocarbons;
Blends - Keywords: R32; R1234ze; Heat pump; Mixture; Expérimentation; Cycle; Refrigerant; DME; CO2
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