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141085 - Investigation on the mass flow rate of a refrigerator compressor based on the p-V diagram.pdf (1.36 MB)

Investigation on the mass flow rate of a refrigerator compressor based on the p–V diagram

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posted on 2023-05-20, 18:09 authored by He, Z, Li, D, Ji, L, Xiaolin WangXiaolin Wang, Wang, T
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 p–V 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 p–V 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 p–V diagram, the influence of suction pressure on compressor performance is investigated.

History

Publication title

Applied Sciences

Volume

10

Issue

19

Article number

6650

Number

6650

Pagination

1-11

ISSN

2076-3417

Department/School

School of Engineering

Publisher

MDPIAG

Place of publication

Switzerland

Rights statement

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

Repository Status

  • Open

Socio-economic Objectives

Energy systems and analysis

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