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Nowadays, refrigeration technology is deeply applied in many fields such as industry agriculture, healthcare,...
9 p hcmute 02/11/2020 404 2
Từ khóa: Cascade, Refrigeration, Heat Exchanger, R32, CO2
Experimental study on the pressure and the power input of a CO air conditioning system
The environmentally friendly refrigerants and high effectiveness heat exchangers are interesting topics for scientists. For natural refrigerants, the carbon dioxide (R744-CO ) is considered as a good candidate in order to replace HCFC (Hydrochlofluorocarbon) or HFC (Hydrofluorocarbon). Besides, the compact heat exchangers with high heat transfer efficiency would be used widely in the future
12 p hcmute 23/05/2019 363 2
Từ khóa: Air conditioning, CO2 refrigerant, pressure, power input, evaporator, heat transfer
An experiment on a co2 air conditioning system with copper heat exchangers
This paper presented an experiment on a CO2 air conditioning system with copper heat exchangers. In this study, the compressor and cooler were tested with hydraulic method to determine the deformed and torn temperatures. The results show that conventional compressor is not suitable for using high pressure, due to the COP of cycle is very low (0.5 only). With CO2 compressor, the cycle can achieved COP of 3.07 at the evaporative temperature of...
7 p hcmute 16/05/2018 439 1
Từ khóa: air conditioning system, heat exchanger, cooler, evaporator, CO2 refrigerant.
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