Cooling analysis of a light emitting diode automotive fog lamp

Matej Zadravec (Avtor), Matjaž Ramšak (Avtor), Jure Ravnik (Avtor), Matjaž Hriberšek (Avtor), Jernej Slanovec (Avtor)

Povzetek

Efficiency of cooling fins inside of a light emitting diode fog lamp is studied using computational fluid dynamics. Diffusion in heat sink, natural convection and radiation are the main principles of the simulated heat transfer. The Navier-Stokes equations were solved by the computational fluid dynamics code, including Monte Carlo radiation model and no additional turbulence model was needed. The numerical simulation is tested using the existing lamp geometry and temperature measurements. The agreement is excellent inside of few degrees at all measured points. The main objective of the article is to determine the cooling effect of various heat sink parts. Based on performed simulations, some heat sink parts are found to be very ineffective. The geometry and heat sink modifications are proposed. While radiation influence is significant, compressible effects are found to be minor.

Ključne besede

prenos toplote;hlajenje elektronskih naprav;hladilna rebra;svetleče diode;avtomobilska luč;stisljivi tokovi;heat transfer;cooling of electronic devices;cooling fins;light emitting diode automotive lamp;compressible flow;

Podatki

Jezik:	Angleški jezik
Leto izida:	2017
Tipologija:	1.01 - Izvirni znanstveni članek
Organizacija:	UM FS - Fakulteta za strojništvo
UDK:	536:532
COBISS:	20476182
ISSN:	0354-9836
Št. ogledov:	955
Št. prenosov:	341
Ocena:	0 (0 glasov)
Metapodatki:

Ostali podatki

Sekundarni jezik:	Slovenski jezik
Sekundarne ključne besede:	prenos toplote;hlajenje elektronskih naprav;hladilna rebra;svetleče diode;avtomobilska luč;stisljivi tokovi;
URN:	URN:SI:UM:
Vrsta dela (COBISS):	Znanstveno delo
Strani:	str. 757-766
Letnik:	ǂVol. ǂ21
Zvezek:	ǂno. ǂ1B
Čas izdaje:	2017
DOI:	10.2298/TSCI140829140Z
ID:	10847226