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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 LU and Xie, Gongnan LU (2019) In International Journal of Energy Research
Abstract

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... (More)

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.

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Please use this url to cite or link to this publication:
author
organization
publishing date
type
Contribution to journal
publication status
epub
subject
keywords
flow rate, lubricating oil, single-screw compressor, specific power rate, volumetric efficiency
in
International Journal of Energy Research
publisher
John Wiley & Sons
external identifiers
  • scopus:85061616917
ISSN
0363-907X
DOI
10.1002/er.4406
language
English
LU publication?
yes
id
e59c8402-34f6-4e7a-92b6-38a3c1c8dbce
date added to LUP
2019-03-15 13:45:22
date last changed
2019-03-15 13:45:22
@article{e59c8402-34f6-4e7a-92b6-38a3c1c8dbce,
  abstract     = {<p>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.</p>},
  author       = {Li, Yong and Lu, Yuanwei and Wu, Yuting and Sunden, Bengt and Xie, Gongnan},
  issn         = {0363-907X},
  keyword      = {flow rate,lubricating oil,single-screw compressor,specific power rate,volumetric efficiency},
  language     = {eng},
  publisher    = {John Wiley & Sons},
  series       = {International Journal of Energy Research},
  title        = {The energy performance of a single-screw compressor for natural gas liquefaction process : Effects of the lubricating oil flow rate},
  url          = {http://dx.doi.org/10.1002/er.4406},
  year         = {2019},
}