TY - JOUR
T1 - Comparative analysis of different cooling fin types for countering LED luminaires' heat problems
AU - Karatekin, Canan
AU - Kökkaya, Oytun
N1 - Publisher Copyright:
© 2018 TÜBITAK.
PY - 2018
Y1 - 2018
N2 - A significant problem with high-power LED luminaires is heat. Aluminum heat sinks have been extensively used as a solution. The most common method for heat sinks that increases surface area uses fins. In the present study, pin- and plate-fins were compared and it was observed that, in equal surface areas, better cooling was achieved by pin-fins. Thus, the study's concentration narrowed to pin-fins and the results of different pin-fins were compared. Simulations of a sample group were conducted by using different numbers of fins, and the number of fins giving the lowest Tmax value (the highest junction point temperature) was accepted to be optimum for each group; then the optimum values were compared among the different groups. Keeping the base width of fins constant, optimum values were obtained for the same number of fins when the fin height was changed. However, keeping fin height constant, surface areas of optimum values and measured Tmax values were very close to one another other, even if the base width of fins was changed. The results have practical significance in designing high-power LED luminaires.
AB - A significant problem with high-power LED luminaires is heat. Aluminum heat sinks have been extensively used as a solution. The most common method for heat sinks that increases surface area uses fins. In the present study, pin- and plate-fins were compared and it was observed that, in equal surface areas, better cooling was achieved by pin-fins. Thus, the study's concentration narrowed to pin-fins and the results of different pin-fins were compared. Simulations of a sample group were conducted by using different numbers of fins, and the number of fins giving the lowest Tmax value (the highest junction point temperature) was accepted to be optimum for each group; then the optimum values were compared among the different groups. Keeping the base width of fins constant, optimum values were obtained for the same number of fins when the fin height was changed. However, keeping fin height constant, surface areas of optimum values and measured Tmax values were very close to one another other, even if the base width of fins was changed. The results have practical significance in designing high-power LED luminaires.
KW - Base width
KW - Fin height
KW - High-power LED luminaire
KW - Junction point temperature
KW - LED cooling
KW - Pin-fin heat sink
KW - Plate-fin heat sink
UR - http://www.scopus.com/inward/record.url?scp=85041305745&partnerID=8YFLogxK
U2 - 10.3906/elk-1602-121
DO - 10.3906/elk-1602-121
M3 - Article
AN - SCOPUS:85041305745
SN - 1300-0632
VL - 26
SP - 454
EP - 466
JO - Turkish Journal of Electrical Engineering and Computer Sciences
JF - Turkish Journal of Electrical Engineering and Computer Sciences
IS - 1
ER -