In the past year has been a great deal of impact and the verifying the content about the format of the compressor refrigerating machine or vacuum. Some of these patterns are very complex, and taking into consideration its mass flow cooling substance through a valve at the entrance and exit, and heat exchangers in various internal parts of the compressor. Other models that do not take into consideration.Mass changes in the compressor, thus considering the same mass flow at the entrance and exit. This type of format is used in this work to calculate mass flow and quality metal compressor outlet years. In the calculation of the mass flow cooling substance defined by the compressor, m: F, The following equation is used:
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