Korean Journal of Air-Conditioning and Refrigeration Engineering (설비공학논문집)

The Society of Air-Conditioning and Refrigerating Engineers of Korea (대한설비공학회)
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A Computational Study on the Cooling Performance of a Near Infrared Radiative Heating System

근적외선 가열 시스템의 냉각 성능에 대한 수치적인 연구

  • 유근표 (인천대학교 기계시스템공학부) ;
  • 한민섭 (인천대학교 기계시스템공학부) ;
  • 김제덕 (얼라이드레이테크놀로지(주)) ;
  • 최원택 (얼라이드레이테크놀로지(주))
  • Received : 2013.01.16
  • Published : 2013.05.10
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Abstract

A near infrared (NIR) heating system has advantages over the conventional convection-based systems, in terms of heating uniformity and energy efficiency. When it is over-heated during its operation, the radiation lamp gets blackened, and the life of the radiation module becomes severely limited. The heat transfer system in the module is based on a high operating-temperature, and the radiation makes it difficult to analyze in detail the reliability issue, with an experimental approach alone. We developed a numerical heat-transfer model of the NIR heating system. We applied a ray-tracing method on the radiative heat transport, and a finite volume method on the conductive and convective systems, respectively. The cooling performance of the system is presented, based on the energy and flow distributions in the module. The factors that directly affect the module life are analyzed, such as the surface temperatures of the lamp glass and the reflector, and design improvements are discussed.

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References

  1. Jung, H. Y., Song, T. H., and Yoo, S. Y., 2008, Optical Analysis and Experimental Method for Design of Radiative Thermal Reflector, Korean Journal of Air- Conditioning and Refrigeration Engineering, Vol. 20, No. 8, pp. 563-569.
  2. Seo, H. K., Kang, N. K., Ryu, Y. S.. Kim, S. C., Hahn, K. S., and Choi, J. S., 2003, A theoretical Basis for the Development of LCD Backlight Unit Simulation, Journal of KIISE, Vol. 30, No. 1, pp. 812-814.
  3. Park, J. H., Lee, J, H., Jeon, J. H., Nahm, K.-B., and Ko, J.-H., 2007, Optical Simulation Study on the Performances of Collimating films for LCD Backlight Applications, Hankook Kwanghak Hoeji, Vol. 18, No. 6, pp. 432-440. https://doi.org/10.3807/HKH.2007.18.6.432
  4. Kim J.-H., Choi, W.-T., and Han, M., 2011, Effect of Radiant Spectral Characteristics on Performance of a Near-Infra-Red Heating Module, Journal of Thermal Science, Vol. 20, No. 6, pp. 510-515. https://doi.org/10.1007/s11630-011-0503-4
  5. Michael, F. M., 2013, Radiative Heat Transfer, Third Edition, Academic Press
  6. Lee, S. H., Shin, D. H., Kim, H. J. Park, S., and Lee, J. S., 2006, Numerical investigation on optical and heat transfer characteristics of a rapid, International Jounal of Thermal Sciences, Vol. 46, pp. 339-406.