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Thermal Radiation Analysis on Automotive Lamp Using CFD and Ray Tracing Method
ISSN: 0148-7191, e-ISSN: 2688-3627
Published March 28, 2017 by SAE International in United States
This content contains downloadable datasetsAnnotation ability available
Beyond the modern design and illumination quality of automotive lamps, thermal management plays a crucial role and must be fulfilled in the early stages of the design process. An excessive thermal radiation from incandescent bulb can cause a severe thermal degradation of plastic parts such as housing or optical lens. Hence, to assess such impact of heat on the plastic parts, thermal analysis of a license plate lamp was investigated by a proposed technique combining computational fluid dynamics (CFD) and ray tracing mapping method. Then, the accuracy and computational cost of the method were compared with thermal results obtained by a thermal radiation model using Monte Carlo (MC) technique for calculating radiation effect coupled with CFD in heat transfer analysis. Finally, a comparison of temperature results from both techniques were validated with practical thermal measurements of license plate lamp prototype. According to the study results, the Monte Carlo method can give a more accurate thermal analysis results for a license plate lamp, whereas the two-day faster ray tracing mapping analysis can also give a similar tendency of temperature distribution on the lamp as well.
CitationPremvaranon, P., Soparat, J., Teralapsuwan, A., and Olarnrithinun, S., "Thermal Radiation Analysis on Automotive Lamp Using CFD and Ray Tracing Method," SAE Technical Paper 2017-01-1737, 2017, https://doi.org/10.4271/2017-01-1737.
Data Sets - Support Documents
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