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Performance of an oil-free linear compressor using R1234yf

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conference contribution
posted on 2023-06-09, 14:14 authored by Zhaohua Li, Kun LiangKun Liang
As an alternative to the hydrocarbons (HCs), R1234yf synthetic refrigerant from the family of the hydrofluoroolefins (HFOs), has emerged recently as a replacement fluid for R134a. The purpose of this study is to investigate the performance of an oil-free linear compressor using R1234yf operated at different pressure ratios for household refrigerators. A mathematical model for the oil-free linear compressor using R1234yf has been developed. The compressor stroke was set as 14 mm for minimum dead volume with the evaporator temperature of – 23 °C. The result shows that the bleed flow rate can be 5% of main flow rate, and the resonant frequency varies between 32.7 Hz and 35.3 Hz for pressure ratios of 5-12. Cylinder mean pressure, shaft power, bleed flow, and clearance seal power loss increase with the pressure ratio. At pressure ratio of 10, and clearance seal power loss represents 8% of shaft power.

History

Publication status

  • Published

File Version

  • Accepted version

Journal

Proceedings of 1st IIR International Conference on the Application of HFO Refrigerants

ISSN

0151-1637

Publisher

International Institute of Refrigeration

Volume

1128

Event name

1st IIR International Conference on the Application of HFO Refrigerants

Event location

Birmingham

Event type

conference

Event date

2nd-5th September 2018

ISBN

9782362150272

Department affiliated with

  • Engineering and Design Publications

Research groups affiliated with

  • Dynamics, Control and Vehicle Research Group Publications

Full text available

  • Yes

Peer reviewed?

  • Yes

Legacy Posted Date

2018-07-23

First Open Access (FOA) Date

2018-08-30

First Compliant Deposit (FCD) Date

2018-07-21

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