عنوان المقالة:Study the Behavoure of Several Types of LEDs Light with Designing Proper Heat Sinks for Each LED Study the Behavoure of Several Types of LEDs Light with Designing Proper Heat Sinks for Each LED
رائد رشاد جاسم, محمد خضير عباس, ثامر خلف سالم, ابراهيم ثامر نزال
المؤلفون بالإنجليزي
Raaid R. Jassem, Thamer Khalif Salem, Mohammed K. Abbas1, 3, Ibrahim Thamer Nazzal1
الملخص العربي
The Heatsinks play a role in the performance of light emitting diode (LED), because any rise in junction temperature above the design junction temperature leads to failure of the LED light. Hence, the Heatsinks design is very important factor to improve the performance of LEDs. LED light that gives 220 lm has been chosen to be the base of our design. Three typs of LEDs have been chosen to give this value of flux, and then suitable Heatsink for each type of LED has been design. EES program is used for both design and study the effect of some parameters on the LEDs flux, LEDs efficiency, Heat sink mass, and Heat sink cost.A 3D model of each type of LED is carried out by using ANSYS ICEPAK program, based on EES program results. There is agreement between theoretical results and numerical (EES, and ICEPAK results) According to the results, the fin lengths of heat sinks for the first, second, and third LEDs are 39, 47, and 52 mm, respectively. Fluxes of LEDS increase with fin lengths till specific length after that it still constant. The increasing of junction temperatures for each type LED light leads to decrease the flux of each LED. For instance, if junction temperatures increase by 20% for each LED’s type, the fluxes of each LED decrease by 3%, 4.5%, and 7% respectively. The cost of heat sinks for each LED can be seen from figure-12 to be around 42, 51, and 57 US dollar for each LED, respectively.
الملخص الانجليزي
The Heatsinks play a role in the performance of light emitting diode (LED), because any rise in junction temperature above the design junction temperature leads to failure of the LED light. Hence, the Heatsinks design is very important factor to improve the performance of LEDs. LED light that gives 220 lm has been chosen to be the base of our design. Three typs of LEDs have been chosen to give this value of flux, and then suitable Heatsink for each type of LED has been design. EES program is used for both design and study the effect of some parameters on the LEDs flux, LEDs efficiency, Heat sink mass, and Heat sink cost.A 3D model of each type of LED is carried out by using ANSYS ICEPAK program, based on EES program results. There is agreement between theoretical results and numerical (EES, and ICEPAK results) According to the results, the fin lengths of heat sinks for the first, second, and third LEDs are 39, 47, and 52 mm, respectively. Fluxes of LEDS increase with fin lengths till specific length after that it still constant. The increasing of junction temperatures for each type LED light leads to decrease the flux of each LED. For instance, if junction temperatures increase by 20% for each LED’s type, the fluxes of each LED decrease by 3%, 4.5%, and 7% respectively. The cost of heat sinks for each LED can be seen from figure-12 to be around 42, 51, and 57 US dollar for each LED, respectively.
تاريخ النشر
07/01/2016
الناشر
International Journal of Emerging Research in Management &Technology
رائد رشاد جاسم | Raaid Rashad Jassem | 4473