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Article

Investigation on the Mass Flow Rate of a Refrigerator Compressor Based on the p–V Diagram

1
School of Energy and Power Engineering, Xi’an Jiaotong University, Xi’an 710049, China
2
School of Engineering, University of Tasmania, Hobart, TAS 7001, Australia
3
School of Energy and Power Engineering, Zhengzhou University of Light Industry, Zhengzhou 450000, China
*
Author to whom correspondence should be addressed.
Appl. Sci. 2020, 10(19), 6650; https://doi.org/10.3390/app10196650
Received: 13 August 2020 / Revised: 1 September 2020 / Accepted: 11 September 2020 / Published: 23 September 2020
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. View Full-Text
Keywords: p–V diagram; mass flow rate; suction pressure; refrigerator compressor p–V diagram; mass flow rate; suction pressure; refrigerator compressor
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MDPI and ACS Style

He, Z.; Li, D.; Ji, L.; Wang, X.; Wang, T. Investigation on the Mass Flow Rate of a Refrigerator Compressor Based on the p–V Diagram. Appl. Sci. 2020, 10, 6650. https://doi.org/10.3390/app10196650

AMA Style

He Z, Li D, Ji L, Wang X, Wang T. Investigation on the Mass Flow Rate of a Refrigerator Compressor Based on the p–V Diagram. Applied Sciences. 2020; 10(19):6650. https://doi.org/10.3390/app10196650

Chicago/Turabian Style

He, Zhilong, Dantong Li, Lantian Ji, Xiaolin Wang, and Tao Wang. 2020. "Investigation on the Mass Flow Rate of a Refrigerator Compressor Based on the p–V Diagram" Applied Sciences 10, no. 19: 6650. https://doi.org/10.3390/app10196650

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