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Optimization of Refrigerant Flow Management in a Dual-Unit Air Conditioning System
Technical Paper
2000-01-0975
ISSN: 0148-7191, e-ISSN: 2688-3627
Annotation ability available
Sector:
Event:
SAE 2000 World Congress
Language:
English
Abstract
Optimization of vehicle air conditioning performance at various drive cycles and ambient conditions can be achieved by regulating and distributing the refrigerant flow entering evaporators. Thermostatic expansion valve (TXV), as a flow control device, has been a key element in improving vehicle A/C system operating efficiency and maximizing cooling capacity. Three scenarios are addressed in this paper: (a) the selection of TXVs for a sports utility vehicle (SUV) climate control system, in which a front HVAC unit and an auxiliary HVAC unit are installed; (b) the methodology of developing a goal-oriented criterion for identifying the TXV combination to fulfill the optimization of A/C system performance; and (c) the analytical and experimental evaluation of vehicle cooling performance by varying TXV combinations in various vehicle operating modes.
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Authors
Topic
Citation
Ye, L., Martin, D., and Faulkner, T., "Optimization of Refrigerant Flow Management in a Dual-Unit Air Conditioning System," SAE Technical Paper 2000-01-0975, 2000, https://doi.org/10.4271/2000-01-0975.Also In
References
- 1997 ASHRAE Handbook - Fundamentals ASHRAE, Inc. Atlanta, GA
- Bejan, A. Tsatsaronis, G Moran, M 1996 Thermal Design and Optimization John Wiley & Sons, Inc.
- McQuiston, F. C. Parker, J. D. 1982 Heating, Ventilating, and Air Conditioning Analysis and Design 2nd John Wiley & Sons, Inc.
- Zeng, X. et al 1999 An Automotive Hybrid Heating System for Parallel Hybrid Passenger Cars SAE paper PC-17