The energy performance of a single-screw compressor for natural gas liquefaction process: Effects of the lubricating oil flow rate

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The energy performance of a single-screw compressor for natural gas liquefaction process : Effects of the lubricating oil flow rate. / Li, Yong; Lu, Yuanwei; Wu, Yuting; Sunden, Bengt; Xie, Gongnan.

In: International Journal of Energy Research, Vol. 43, No. 4, 2019, p. 1494-1504.

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TY - JOUR

T1 - The energy performance of a single-screw compressor for natural gas liquefaction process

T2 - Effects of the lubricating oil flow rate

AU - Li, Yong

AU - Lu, Yuanwei

AU - Wu, Yuting

AU - Sunden, Bengt

AU - Xie, Gongnan

PY - 2019

Y1 - 2019

N2 - An experimental test system including the oil circulation system and the gas circuit system has been designed and built to explore the effects of the lubricating oil flow rate on the performance of a single-screw compressor, used in a portable natural gas liquefaction process. Outlet pressure, outlet volumetric flow rate, volumetric efficiency, and specific power rate are the parameters for evaluation of the energy performance of the single-screw compressor. The experimental results indicate that the outlet pressure and outlet volumetric flow rate can be effectively increased by increasing the flow rate of the lubricating oil at different rotational frequencies and that a certain amount of lubricant oil is helpful to improve the volumetric efficiency. In terms of the specific power rate, the optimum oil-gas ratios are 0.7%, 0.93%, and 1.79%, and the corresponding outlet pressures are 0.45, 0.45, and 0.48 MPa at the conditions of 50, 40, and 30 Hz, respectively.

AB - An experimental test system including the oil circulation system and the gas circuit system has been designed and built to explore the effects of the lubricating oil flow rate on the performance of a single-screw compressor, used in a portable natural gas liquefaction process. Outlet pressure, outlet volumetric flow rate, volumetric efficiency, and specific power rate are the parameters for evaluation of the energy performance of the single-screw compressor. The experimental results indicate that the outlet pressure and outlet volumetric flow rate can be effectively increased by increasing the flow rate of the lubricating oil at different rotational frequencies and that a certain amount of lubricant oil is helpful to improve the volumetric efficiency. In terms of the specific power rate, the optimum oil-gas ratios are 0.7%, 0.93%, and 1.79%, and the corresponding outlet pressures are 0.45, 0.45, and 0.48 MPa at the conditions of 50, 40, and 30 Hz, respectively.

KW - flow rate

KW - lubricating oil

KW - single-screw compressor

KW - specific power rate

KW - volumetric efficiency

U2 - 10.1002/er.4406

DO - 10.1002/er.4406

M3 - Article

AN - SCOPUS:85061616917

VL - 43

SP - 1494

EP - 1504

JO - International Journal of Energy Research

JF - International Journal of Energy Research

SN - 0363-907X

IS - 4

ER -