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Optimization of Vehicle Air Conditioning Systems Using Transient Air Conditioning Performance Analysis
ISSN: 0148-7191, e-ISSN: 2688-3627
Published May 14, 2001 by SAE International in United States
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The National Renewable Energy Laboratory (NREL) has developed a transient air conditioning (A/C) system model using SINDA/FLUINT analysis software. It captures all the relevant physics of transient A/C system performance, including two-phase flow effects in the evaporator and condenser, system mass effects, air side heat transfer on the condenser/evaporator, vehicle speed effects, temperature-dependent properties, and integration with a simplified cabin thermal model. It has demonstrated robust and powerful system design optimization capabilities. Single-variable and multiple variable design optimizations have been performed and are presented. Various system performance parameters can be optimized, including system COP, cabin cool-down time, and system heat load capacity. This work presents this new transient A/C system analysis and optimization tool and shows some high-level system design conclusions reached to date. The work focuses on R-134a A/C systems, but future efforts will modify the model to investigate the transient performance of alternative refrigerant systems such as carbon dioxide systems. NREL is integrating its transient air conditioning model into NREL's ADVISOR vehicle system analysis software, with the objective of simultaneously optimizing A/C system designs within the overall vehicle design optimization.
CitationHendricks, T., "Optimization of Vehicle Air Conditioning Systems Using Transient Air Conditioning Performance Analysis," SAE Technical Paper 2001-01-1734, 2001, https://doi.org/10.4271/2001-01-1734.
- Bevilacqua, O.M. “Effect of Air Conditioning on Regulated Emissions for In-Use Vehicles” Clean Air Vehicle Technology Center, Oakland, CA, Phase I Final Report Coordinating Research Council, Inc. Atlanta, GA October 1999
- Nadamoto, H. Kubota, A. “Power Saving With the Use of Variable Displacement Compressors” Proceedings of SAE International Congress and Exposition , SAE Technical Paper # 1999-01-0875 Detroit, MI March 1999
- Wang, M. Farley, D.L. Leitzel, L.L. “Air Conditioning System Head Pressure Spike During Vehicle Acceleration” Proceedings of SAE 2000 World Congress , SAE Technical Paper # 2000-01-0973 Detroit, MI March 2000
- Khamsi, Y. Petitjean, C. “Validation of Automotive Passenger Compartment and Its Air Conditioning System Modeling” Proceedings of SAE 2000 World Congress , SAE Technical Paper # 2000-01-0982 Detroit, MI March 2000
- Hyun, L.K. Wong, J.-F. “Thermal Design Study of a High Performance Evaporator for the Automotive Air Conditioner” Proceedings of SAE International Congress and Exposition , SAE Technical Paper # 1999-01-1191 Detroit, MI March 1999
- Kelemen, K. Tarunraj, S. Mayne, R. “Modeling of an Automotive Air-Conditioning System” Proceedings of SAE 2000 World Congress , SAE Technical Paper # 2000-01-1269 Detroit, MI March 2000
- Kargilis, A. “Design & Development of Automotive Air Conditioning Systems” Course Textbook University Consortium for Continuing Education Encino, CA February 2000