Journal
Scientific journal NRU ITMO. Series "Refrigeration and Air Conditioning"
UDK621.514
Issue:1 (17)
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Two stages of process when internal pressure is lower then discharge pressure is considered. Considered compressor operation composed of medium-temperature chiller at refrigerant R717 and R404a. Provides efficiency indicators, relative resistance in discharge process, relative energy loss in inflow process from discharge port depending on volume ratio. In medium-temperature chiller mode energy efficiency of screw compressor on refrigerant R717 above then on R404а ofall volume ratios.