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Investigation on the mass flow rate of a refrigerator compressor based on the pV diagram

Citation

He, Z and Li, D and Ji, L and Wang, X and Wang, T, Investigation on the mass flow rate of a refrigerator compressor based on the p-V diagram, Applied Sciences, 10, (19) Article 6650. ISSN 2076-3417 (2020) [Refereed Article]


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2020 by the authors. Licensed under Creative Commons Attribution 4.0 International (CC BY 4.0) http://creativecommons.org/licenses/by/4.0/

DOI: doi:10.3390/app10196650

Abstract

The refrigerant mass flow rate of a refrigerator compressor can only be measured by a mass flow meter and heat balance method. This paper focuses on the expansion and compression phase in which the compressor cylinder is closed, and proposes a measurement method of instantaneous mass flow of the refrigerator compressor. The comparison of the experimental pressure variation in the pV diagram and the theoretical adiabatic process implied that the expansion and compression process of the refrigerator compressor approximated the adiabatic process. Based on the approximations and the experimental pV diagram, a calculation method for refrigerant mass in the cylinder during the expansion and compression phase is proposed. Subsequently, the mass flow of the refrigerator compressor can be obtained. Furthermore, compared with experimental data and based on the method proposed in this paper, the error of the mass flow rate obtained is less than 3.13%. Based on this calculation method and the experimental pV diagram, the influence of suction pressure on compressor performance is investigated.

Item Details

Item Type:Refereed Article
Keywords:p-V diagram, mass flow rate, suction pressure, refrigeration compressor
Research Division:Engineering
Research Group:Mechanical engineering
Research Field:Energy generation, conversion and storage (excl. chemical and electrical)
Objective Division:Energy
Objective Group:Energy storage, distribution and supply
Objective Field:Energy systems and analysis
UTAS Author:Wang, X (Professor Xiaolin Wang)
ID Code:141085
Year Published:2020
Web of Science® Times Cited:1
Deposited By:Engineering
Deposited On:2020-09-23
Last Modified:2021-02-15
Downloads:3 View Download Statistics

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