» Từ khóa: co refrigerant

Kết quả 1-2 trong khoảng 2

Experiments on expansion and superheat processes of a CO2 cycle using microchannel evaporator

Experiments on expansion and superheat processes of a transcritical CO2 air conditioning system were done. In this study, the cross-sectional area of the expansion valve reduces from 8.195 to 0.091 mm2, the cooler pressure increases and the evaporator pressure decreases; the pressure difference between cooler and evaporator increases

25 p hcmute 16/05/2018 479 1

Từ khóa: Experiment, CO refrigerant, expansion, superheat, evaporator, microchannel
Numerical similation on heat transfer phenomena in microchannel evaporator of a CO2 air conditioning system

The investigation presented a numerical simulation on heat transfer behaviors in microchannel evaporator of a CO2 air conditioning system. The conditions for numerical simulation were applied by the experimental data of a CO2 air conditioning cycle. This cycle worked with the cooler pressure of 85 bar, evaporator pressure of 37 bar, and the CO2 flow rate of 5.2 g/s.

8 p hcmute 16/05/2018 578 1

Từ khóa: Numerical simulation, CO refrigerant, air conditioning system, heat transfer, evaporator

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