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A Novel Methodology for Measurements of an LED’s Heat Dissipation Factor

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Abstract

Heat generation is an inevitable byproduct with high-power light-emitting diode (LED) lighting. The increase in junction temperature that accompanies the heat generation sharply degrades the optical output of the LED and has a significant negative influence on the reliability and durability of the LED. For these reasons, the heat dissipation factor, \(K_{\mathrm{h}}\), is an important factor in modeling and thermal design of LED installations. In this study, a methodology is proposed and experiments are conducted to determine LED heat dissipation factors. Experiments are conducted for two different brands of LED. The average heat dissipation factor of the Edixeon LED is 0.69, and is 0.60 for the OSRAM LED. By using the developed test method and comparing the results to the calculated luminous fluxes using theoretical equations, the interdependence of optical, electrical, and thermal powers can be predicted with a reasonable accuracy. The difference between the theoretical and experimental values is less than 9 %.

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References

  1. J.H. Li, B. Ma, R. Wang, L. Han, Microelectron. Reliab. 51, 2210 (2011)

    Article  Google Scholar 

  2. C. Biber, LED Light emission as a function of thermal conditions, in Proceedings of 24th IEEE SEMI-THERM Symposium (2008), pp. 180–184

  3. N. Wang, C.H. Wang, J.X. Lei, D.S. Zhu, in Proceedings of 2009 10th International Conference on Electron Package Technology High Density Pack (ICEPT-HDP, 2009), ed. by K. Bi, J. Cai (IEEE, New Jersey, 2009), pp. 433–437

  4. A. Poppe, C.J.M. Lasance, in Proceedings of 25th IEEE SEMI-THERM Symposium (2009), pp. 151–158

  5. H. Chen, Y. Lu, Y. Gao, H. Zhang, Z. Chen, Thermochim. Acta 488, 33 (2009)

    Article  Google Scholar 

  6. A. Christensen, S. Graham, Appl. Therm. Eng. 29, 364 (2009)

    Article  Google Scholar 

  7. T. Cheng, X. Luo, S. Huang, S. Liu, Int. J. Therm. Sci. 49, 196 (2010)

    Article  Google Scholar 

  8. B.J. Huang, C.W. Tang, M.S. Wu, Appl. Therm. Eng. 29, 609 (2009)

    Article  Google Scholar 

  9. K.C. Yung, H. Liem, H.S. Choy, W.K. Lun, Int. Commun. Heat Mass Transf. 37, 1266 (2010)

    Article  Google Scholar 

  10. Y.G. Deng, J. Liu, Int. Commun. Heat Mass Transf. 37, 788 (2010)

    Article  Google Scholar 

  11. R.-Y. Jou, in Proceedings of 2010 ASME 10th Biennial Conference on Engineering Systems Design and Analysis, ed. by N. Egrican (ASME, New York, 2010), pp. 477–486

  12. R.-Y. Jou, in Proceedings of ASME 2010 International Mechanical Engineering Congress & Exposition, ed. by U. Ghia (ASME, New York, 2010), pp. 1–12

  13. S.Y. Hui, Y.X. Qin, IEEE Trans, Power Electron. 24, 1967 (2009)

  14. K.J. McCree, Photo-Synthetically Active Radiation. Encyclopedia of Plant Physiology. New Series, vol. 12A, Physiological Plant Ecology I (Springer, Berlin, 1981)

  15. Light Measurement Guidance Notes, Skye Instruments Ltd

  16. KD2 Pro Thermal Properties Analyzer-Operator’s Manual, Decagon Devices, Inc. (2006)

  17. LW-9049 Temperature Calibrator-Operator’s Manual, Long-Win Science and Technology Corporation (2007)

Download references

Acknowledgments

This work was supported by the National Science Council under the contract numbers of NSC 101-2221-E-150-052- and NSC 102-2221-E-150-051-.

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Authors and Affiliations

  1. Department of Mechanical Design Engineering, National Formosa University, 632, Huwei, Yunlin, Taiwan, ROC

    R.-Y. Jou & J.-H. Haung

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  1. R.-Y. Jou
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  2. J.-H. Haung
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Correspondence to R.-Y. Jou.

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Jou, RY., Haung, JH. A Novel Methodology for Measurements of an LED’s Heat Dissipation Factor. Int J Thermophys 36, 3487–3501 (2015). https://doi.org/10.1007/s10765-015-2003-3

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  • DOI: https://doi.org/10.1007/s10765-015-2003-3

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