Full metadata record
DC Field | Value | Language |
---|---|---|
dc.contributor.author | 육세진 | - |
dc.date.accessioned | 2018-03-22T08:05:29Z | - |
dc.date.available | 2018-03-22T08:05:29Z | - |
dc.date.issued | 2014-03 | - |
dc.identifier.citation | Applied energy,v.116 2014년, pp.260 - 268 | en_US |
dc.identifier.issn | 0306-2619 | - |
dc.identifier.issn | 1872-9118 | - |
dc.identifier.uri | https://www.sciencedirect.com/science/article/pii/S0306261913009707?via%3Dihub | - |
dc.identifier.uri | http://hdl.handle.net/20.500.11754/50771 | - |
dc.description.abstract | Light-emitting diode (LED) lighting offers greater energy efficiency than conventional lighting. However, if the heat from the LEDs is not properly dissipated, the lifespan and luminous efficiency are diminished. In the present study, a heat sink of LED lighting was optimized with respect to its fin-height profile to obtain reliable cooling performance for high-power LED lighting applications. Natural convection and radiation heat transfer were taken into consideration and an experiment was conducted to validate the numerical model. Fin-height profiles reflecting a three-dimensional chimney-flow pattern were proposed. The outermost fin height, the difference between fin heights, and the number of fin arrays were adopted as design variables via sensitivity analysis, and the heat sink configuration was optimized in three dimensions. Optimization was conducted to simultaneously minimize the thermal resistance and mass. The result was compared with the Pareto fronts of a plate-fin heat sink examined in a previous study. The cooling performance of the optimized design showed an improvement of more than 45% while preserving a mass similar to that of the plate-fin heat sink. (C) 2013 Elsevier Ltd. All rights reserved. | en_US |
dc.description.sponsorship | This research was supported by Basic Science Research Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Education, Science and Technology (No. 2012R1A1B3000492). | en_US |
dc.language.iso | en | en_US |
dc.publisher | Elsevier Science B.V., Amsterdam. | en_US |
dc.subject | LED lighting | en_US |
dc.subject | Electronic cooling | en_US |
dc.subject | Natural convection | en_US |
dc.subject | Heat sink | en_US |
dc.subject | Optimization | en_US |
dc.subject | Fin-height profile | en_US |
dc.title | Optimum design of a radial heat sink with a fin-height profile for high-power LED lighting applications | en_US |
dc.type | Article | en_US |
dc.relation.volume | 116 | - |
dc.identifier.doi | 10.1016/j.apenergy.2013.11.063 | - |
dc.relation.page | 260-268 | - |
dc.relation.journal | APPLIED ENERGY | - |
dc.contributor.googleauthor | Jang, Dae-seok | - |
dc.contributor.googleauthor | Yook, Se-Jin | - |
dc.contributor.googleauthor | Lee, Kwan-Soo | - |
dc.relation.code | 2014025288 | - |
dc.sector.campus | S | - |
dc.sector.daehak | COLLEGE OF ENGINEERING[S] | - |
dc.sector.department | DIVISION OF MECHANICAL ENGINEERING | - |
dc.identifier.pid | ysjnuri | - |
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.