THERMAL SCIENCE
International Scientific Journal
MATHEMATICAL MODELING AND NUMERICAL SIMULATION OF HEAT DISSIPATION IN LED BULBS
ABSTRACT
We present a detailed study of heating and cooling processes in LED luminaires with passive heat sinks. Our analysis is supported by numerical simulations as well as experimental measurements, carried on commercial systems used for outdoor lighting. We have focused our analysis on the common case of a single LED source in thermal contact with an aluminum passive heat sink, obtaining an excellent agreement with experimental measurements and the numerical simulations performed. Our results can be easily expanded, without loss of generality, to similar systems.
KEYWORDS
PAPER SUBMITTED: 2019-05-21
PAPER REVISED: 2019-08-29
PAPER ACCEPTED: 2019-09-06
PUBLISHED ONLINE: 2020-02-15
THERMAL SCIENCE YEAR
2020, VOLUME
24, ISSUE
Issue 3, PAGES [1877 - 1884]
- R. Mueller-Mach, G. O. Mueller, M. R. Krames, T. Trottier, High-power phosphor-converted light emitting diodes based on iii-nitrides, IEEE J. Sel. Top. Quantum Electron. 8 (2002) 339-345.
- Y. Narukawa, J. Narita, T. Sakamoto, K. Deguchi, T. Yamada, T. Mukai, Ultra-high efficiency white light emitting diodes, Jpn. J. Appl. Phys. 45 (2006) L1084.
- A. Krost, A. Dadgar, GaN-based devices on Si, Phys. Status Solidi 194 (2002) 361-375.
- H. Luo, J. K. Kim, E. F. Schubert, J. Cho, C. Sone, Y. Park, Analysis of high-power packages for phosphor-based white-light-emitting diodes, Appl. Phys. Lett. 86 (2005) 243505.
- H.-J. Chiu, Y.-K. Lo, J.-T. Chen, S.-J. Cheng, C.-Y. Lin, S.-C. Mou, A high-efficiency dimmable led driver for low-power lighting applications, IEEE Trans. Ind. Electron. 57 (2010) 735-743.
- A. Efremov, N. Bochkareva, R. Gorbunov, D. Lavrinovich, Y. T. Rebane, D. Tarkhin, Y. G. Shreter, Effect of the joule heating on the quantum efficiency and choice of thermal conditions for high-power blue ingan/gan leds, Semiconductors 40 (2006) 605-610.
- H. Chen, W. Y. Lam, J. Luo, Y. 175 Ho, B. Tang, D. Zhu, M. Wong, H. S. Kwok, Highly efficient organic light-emitting diodes with a silole-based compound, Appl. Phys. Lett. 81 (2002) 574-576.
- N. Gardner, J. Kim, J. Wierer, Y. Shen, M. Krames, Polarization anisotropy in the electroluminescence of m-plane ingan-gan multiple-quantum-well light-emitting diodes, Appl. Phys. Lett. 86 (2005) 1101.
- J.P. Ruiz-Fernández, J. Benlloch, M.A. López, N. Valverde-Gascueña, Influence of seasonal factors in the earned value of construction, Applied Mathematics Nonlinear Sciences 4 (2019) 21-34.
- S.-H. Yu, K.-S. Lee, S.-J. Yook, Natural convection around a radial heat sink, Int. J. Heat Mass Transf. 53 (2010) 2935-2938.
- N. Narendran, Y. Gu, Life of led-based white light sources, J. Disp. Technol. 1 (2005) 167-171.
- E. Balvís, R. Bendaña, H. Michinel, P. F. de Córdoba, A. Paredes, Analysis of a passive heat sink for temperature stabilization of high-power led bulbs, Journal of Physics: Conference Series 605 (2015) 012005.
- D. Jang, S.-H. Yu, K.-S. Lee, Multidisciplinary optimization of a pin-fin radial heat sink for led lighting applications, Int. J. Heat Mass Transf. 55 (2012) 515-521.
- M. Dewasurendra, K. Vajravelukuppalapalle, On the method of inverse mapping for solutions of coupled systems of nonlinear differential equations arising in nanofluid flow, heat and mass transfer, Applied Mathematics and Nonlinear Sciences 3 (2018) 1-14.
