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An Experimental and Computational Study of Cooling in a Simplified GM-10 Passenger Compartment
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English
Abstract
Three-dimensional flow and temperature distributions in a passenger compartment are very important for evaluating passenger comfort and improving A/C system design. In the present study, the Reynolds-averaged Navier-Stokes equations and the energy transport equation were solved, by both quasi-steady and full transient approaches, to simulate a passenger compartment cooling process. By comparing the predictions with experimental results for a simplified GM-10 passenger compartment, the accuracy of the simulation was assessed. Throughout the 800-second period, good agreement was observed between the measured breath-level air temperatures and the prediction of the transient simulation. The quasi-steady simulation underpredicted air temperatures at the very early stage of the cooling process. However, after 200 seconds of cool down, the quasi-steady simulation predicted air temperatures equally as well as the full transient simulation. The current approaches have demonstrated their applicability and accuracy to passenger compartment cooling simulation.
Beyond the current application, this simulation methodology may also be used for passenger compartment heating analyses, providing critical parameters and guidelines for passenger comfort assessment and evaluating of the effectiveness of the HVAC system designs.
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Citation
Lin, C., Lelli, M., Han, T., Niemiec, R. et al., "An Experimental and Computational Study of Cooling in a Simplified GM-10 Passenger Compartment," SAE Technical Paper 910216, 1991, https://doi.org/10.4271/910216.Also In
References
- Shimizu, S. Hara, H. Asakawa, F. “Analysis on Air-Conditioning Heat Load of a Passenger Vehicle,” Int. J. of Vehicle Design 4 3 292 311 1983
- Davis, G. L. Chianese, F. Jr. Scott, T. C. “Computer Simulation of Automotive Air Conditioning- Components, Systems, and Vehicles,” SAE Paper 720077 1972
- China, H. Yanagimoto, K. “Prediction of Internal Air Flow of Passenger Car by Three-Dimensional Numerical Flow Analysis,” JSAE 41 12 1376 1381 1987
- Han, T. “Three-Dimensional Navier-Stokes Simulation for Passenger Compartment Cooling,” Int. J. of Vehicle Design 10 2 175 186 1989
- lngersoll, J. G. et al “Automotive Passenger Compartment Thermal Model for General Motors,” 86 95 Jan. 1990
- Launder, B. E. Spalding, D. B. “The Numerical Calculation of Turbulent Flows,” Computational Methods in Applied Mechanics and Engineering 3 269 289 1974
- Han, T. “A Navier-Stokes Analysis of Three-Dimensional Turbulent Flows around a Bluff Body in Ground Proximity,” AIAA Paper 88-3766 1988
- Peaceman, D. W. Rachford, H. F. “The Numerical Solution of Parabolic and Elliptic Differential Equations,” J. Society Industrial Applied Mathematics 3 28 41 1955
- Issa, R. I. “Solution of the Implicitly Discretized Fluid Flow Equations by Operator-Splitting,” J. of Computational Physics 62 40 65 1986
- Hestens, M. R. Stiefel, E. “Methods of Conjugate Gradients for Solving Linear Systems,” J. Res. National Bureau of Standards 49 409 436 1952
- White, F. M. “Viscous Fluid Flow,” McGraw-Hill Book Co. NY 380 559 561 1974