000021484 001__ 21484
000021484 005__ 20170522124356.0
000021484 04107 $$aeng
000021484 046__ $$k2017-05-15
000021484 100__ $$aZachar, M.
000021484 24500 $$aNUMERICAL THERMAL COMPARISON OF HEAT SINK MATERIALS FOR AUTOMOTIVE LED HEADLAMPS

000021484 24630 $$n23.$$pEngineering Mechanics 2017
000021484 260__ $$bBrno University of Technology, Institute of Solid Mechanics, Mechatronics and Biomechanics, Brno
000021484 506__ $$arestricted
000021484 520__ $$2eng$$aCurrently, aluminium is the most widely used heat sink material for cooling LEDs in automotive headlamps because of its good thermophysical properties. But the headlamps manufacturers are still looking for other material solutions, which could be better than the aluminium one. One of the possibilities is using plastics with high thermal conductivity, because even if its conductivity is lower than aluminium’s, it is much easier to shape to various forms, which could be better for heat transportation and the cost of this solution could be much lower. This paper deals with the comparison of a real heat sink geometry, used in the front headlamp of automobile, where it serves to cool LEDs. A numerical comparison between three materials was made: firstly the actually used aluminium alloy, secondly a imaginative material with isotropic thermal conductivity 20 W∙m-1∙K-1 serving as a comparision between plastic material and thirdly a plastic material with anisotropic thermal conductivity which ranges from 5 to 20 W∙m-1∙K-1.

000021484 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000021484 653__ $$aHeat sink, Aluminium, Plastic, LED, Headlamp.

000021484 7112_ $$aEngineering Mechanics 2017$$cSvratka, CZ$$d2017-05-15 / 2017-05-18$$gEM2017
000021484 720__ $$aZachar, M.$$iHorský, J.$$iGuzej, M.
000021484 8560_ $$ffischerc@itam.cas.cz
000021484 8564_ $$s1006957$$uhttps://invenio.itam.cas.cz/record/21484/files/1078.pdf$$yOriginal version of the author's contribution in proceedings, page 1078, section TER.
000021484 962__ $$r21225
000021484 980__ $$aPAPER