The performance of a water vapor compressor and an entire water vapor compression chiller using an isentropic compression process and a saturated multivariable compression process. The coefficient of performance of a water vapor compression refrigerator using a saturated multi-variable compression process is significantly higher than that of a water vapor compression refrigerator using an isentropic compression process, because the compression heat in the saturated multi-variable compression process is taken by the cooling fluid zone. go. Similar to the isentropic compression process, for the saturated multi-variable compression process, the compression work and the axial work calculated by using the water vapor as the ideal gas and the value obtained by using the water vapor as the actual gas are very small, so the water vapor is calculated. The performance of the compressor can be treated with water vapor as an ideal gas, and satisfactory results can be obtained.
Based on the currently available data and graphs on water vapour, the pressure and specific volume of water vapour are obtained as a function of each other. Using these functional relationships, the performance of a water vapor compression chiller can be calculated. The calculation results show that the water vapor compressor with intermediate cooling has significantly lower power consumption than the adiabatic steam compressor, so the steam compressor at work should be cooled as much as possible. The water vapor compression chiller, in addition to the refrigerant is water, is a truly green environmentally friendly working fluid. Under the same conditions, it has a higher coefficient of performance than the conventional vapor compression chiller with CFC-based refrigerant as refrigerant. . Thus, water vapor compression chillers are a very attractive type of chiller to replace CFC vapor compression chillers in the future.
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