The Variable Displacement Compressor and Internal Regulation Valve Simulation

Abstract:

The air-conditioning system is a source of energy consumption and consequently, it has a strong influence on the fuel consumption, the engine load and the pollutant emissions. The air-conditioning system has to be accounted for in the energy balance under the hood. This system is composed of a variable displacement compressor including an internal regulation valve. In this paper, we model a complete system step by step. We build the compressor system and gradually add components so as to end up with the complete system. The simulation results shows that when the suction pressure becomes at some point smaller than the regulation pressure, the valve controls the compressor displacement and tends to reduce it in order to maintain a certain level for the suction pressure. It will be easier to observe the influence of the regulation valve on the complete refrigerant loop system.

• Periodical: Advanced Materials Research (Volumes 516-517)
• Pages: 684-687
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.516-517.684
• Online since: May 2012
• Authors: Xiao Jie Chen
• Keywords: Compressor, Internal, Simulation, Valve, Variable Displacement

References

[1] W. Maake, H.J. Eckert and J.L. CAUCHEPIN, "LE Pohlmann – Manuel technique du froid," PYC, 1993.

[2] VDI Heat Atlas, VDI Verlag, 1993.

[3] Necati OZICIK, "Heat Transfer A Basic Approach", Mac Graw-Hill, 1985.

[4] J.G. Collier, and J.R. Thome: "Convective Boiling and Condensation", Oxford Science Publications, 3rd edition, 1999.

[5] Karl Stephan, "Heat Transfer in Condensation and Boiling", Springer-Verlag Berlin Heidelberg, 1992.

[6] Lucien Borel, "Thermodynamique et Energétique", Volume1, Troisième edition, Presses Polytechniques et Universitaires Romandes, 1991.