Investigation on the Mass Flow Rate of a Refrigerator Compressor Based on the p–V Diagram
Open Access
- 22 September 2020
- journal article
- research article
- Published by MDPI AG in Applied Sciences
- Vol. 10 (19), 6650
- https://doi.org/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 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.This publication has 15 references indexed in Scilit:
- Investigation on an Improved Household Refrigerator for Energy Saving of Residential BuildingsApplied Sciences, 2020
- Effect of Vacuum Insulation Panels on Energy Consumption and Thermal Load Transfer between Compartments in a Three-Temperature Frost-Free RefrigeratorEnergies, 2020
- Investigation on the Suction Reed Valve Motion with Sticky Force in a Refrigerator CompressorEnergies, 2018
- Investigation of the Thermodynamic Process of the Refrigerator Compressor Based on the m-θ DiagramEnergies, 2017
- Experimental investigation of transient fluid flow and superheating in the suction chamber of a refrigeration reciprocating compressorApplied Thermal Engineering, 2012
- Theoretical investigation of adiabatic capillary tubes working with propane/n-butane/iso-butane blendsEnergy Conversion and Management, 2007
- Refrigerant mass charge distribution in a domestic refrigerator, Part I: Transient conditionsApplied Thermal Engineering, 2006
- Refrigerant mass charge distribution in a domestic refrigerator. Part II: steady state conditionsApplied Thermal Engineering, 2006
- A simple technique for refrigerant mass measurementApplied Thermal Engineering, 2005
- Thermodynamic analysis of reciprocating compressorsInternational Journal of Thermal Sciences, 2001