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Gas compressor
About: Gas compressor is a research topic. Over the lifetime, 91817 publications have been published within this topic receiving 552209 citations.
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101 citations
TL;DR: In this article, fundamental and practical influence of liquid refrigerant injection on the performance of a refrigerant scroll compressor has been investigated experimentally and theoretically, and it was found that the injection basically increases the compression power and decreases the compressor efficiency.
Abstract: In this study, fundamental and practical influence of liquid refrigerant injection on the performance of a refrigerant scroll compressor has been investigated experimentally and theoretically. In the theoretical analysis, a compression model of vapor/liquid mixture is developed by taking account of heat transfer from the cylinder wall to suction, compression and injection refrigerant. An experiment has been done under the condition of keeping the oil temperature constant in order to investigate the fundamental influence of the liquid refrigerant injection on the compressor performance, and the results were compared with the theoretical ones. It was found that the injection basically increases the compression power and decreases the compressor efficiency, though the situation depends on the condition of the heat transfer to the injection refrigerant. And furthermore, the performance of the liquid refrigerant injection compressor under practical operating condition without controlling the oil temperature has been investigated. Under this condition, the compressor showed recovery and slight improvement of performance due to the decrease of the oil and cylinder temperatures by the injection. In addition, influence of the refrigerant injection on the oil viscosity and refrigerant solubility in the oil, which relate mechanical loss and reliability of the compressor, have been discussed.
101 citations
Patent•
10 May 2002
TL;DR: In this paper, a process for estimating the capacity and the coefficient of performance by taking common measurements and using compressor manufacturer's performance data is presented, and a process is presented for determining a capacity index and an efficiency index for a vapor compression cycle relative to desired operating conditions.
Abstract: A process for estimating the capacity and the coefficient of performance by taking common measurements and using compressor manufacturer's performance data is presented. A process for determining a capacity index and an efficiency index for a vapor compression cycle relative to desired operating conditions.
101 citations
TL;DR: In this paper, an energy and exergy analysis of an adiabatic CAES system is presented, where the heat of compression is stored and subsequently used during the expansion process in the turbine.
101 citations
TL;DR: In this paper, the authors used the first and second law of thermodynamics to construct a model for the gas turbine power plant, and calculated the exergy flow rate for the compressor, the combustion chamber, and the GT inlet and outlet.
101 citations