Scientific journal NRU ITMO
Series "Refrigeration and Air Conditioning"
Registration certificate ЭЛ № ФС 77 – 55410 от 17.09.2013
зарегистрировано в Федеральной службе по надзору в сфере связи, информационных технологий и массовых коммуникаций
ISSN:2310-1148

March 2015 (published: 02.03.2015)

Number 1(17)

Home > Issue > Discharge process analysis of screw refrigeration compressor with different refrigerants

UDC 621.514

Discharge process analysis of screw refrigeration compressor with different refrigerants

Noskov A.N., Potapova D.V.

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. 
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Keywords: screw refrigeration compressor, discharge process, R717 and R404а.

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