This content is not included in your SAE MOBILUS subscription, or you are not logged in.
Development of a Virtual Thermal Manikin to Predict Thermal Sensation in Automobiles
ISSN: 0148-7191, e-ISSN: 2688-3627
Published April 16, 2012 by SAE International in United States
Annotation ability available
In today's highly competitive marketplace and ever-shrinking vehicle development cycle, automotive HVAC engineers are constantly challenged to develop systems that deliver adequate thermal comfort at lower cost and higher fuel-efficiency. However, in the absence of a reliable predictive tool that is capable of quantifying thermal comfort early in the vehicle development program, OEMs employ expensive and time-consuming human subject test rides to assess HVAC system's performance. In order to address this issue, a Computational Fluid Dynamics (CFD) model of a virtual thermal manikin in a passenger cabin is developed in this study. The model is capable of providing thermal sensations, as experienced by humans, under any arbitrary thermal environment. Additionally, the model can provide sensitivity of various critical parameters, such as solar load, A/C discharge outlet air flow-rate and temperature, A/C outlet locations, various HVAC modes etc., to thermal sensation. Comparison of the proposed model's simulated results with the actual test data show good correlation.
CitationKaushik, S., Han, T., and Chen, K., "Development of a Virtual Thermal Manikin to Predict Thermal Sensation in Automobiles," SAE Technical Paper 2012-01-0315, 2012, https://doi.org/10.4271/2012-01-0315.
- Kaushik, S. Chen, K. Han, T. Khalighi, B. “Micro-Cooling/Heating Strategy for Energy Efficient HVAC System,” SAE Int. J. Mater. Manuf. 4 1 853 863 2011 10.4271/2011-01-0644
- Nilsson, H. Holmér, I. 2001 “Comfort diagrams for improved evaluation of indoor climate” 4IMM, Fourth International Meeting on Thermal Manikins EMPA, Swiss Federal Laboratories for Materials Testing and Research Switzerland 27 28 September 2001
- Nilsson, H. Holmér, I. Bohm, M. Norén, O. 1997 Equivalent temperature and thermal sensation - Comparison with subjective responses Proceedings of Comfort in the automotive industry - Recent development and achievements Bologna, Italy ATA 1 157 162
- Han, T. Huang, L. “A Sensitivity Study of Occupant Thermal Comfort in a Cabin Using Virtual Thermal Comfort Engineering,” SAE Technical Paper 2005-01-1509 2005 10.4271/2005-01-1509
- Han, T. Chen, K. “Assessment of Various Environmental Thermal Loads on Passenger Compartment Soak and Cool-D own Analyses,” SAE Technical Paper 2009-01-1148 2009 10.4271/2009-01-1148
- Fluent 12.1, Commercial CFD code ANSYS Inc.
- ANSA 13.0.2, Commercial meshing software Beta-CAE Systems