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  Citation Number 1
 Views 6
 Downloands 1
SOKAK AYDINLATMALARINDA KULLANILACAK YÜKSEK GÜÇLÜ LED'LERİN TERMAL PERFORMANSININ SAYISAL VE DENEYSEL OLARAK İNCELENMESİ
2020
Journal:  
Mühendislik Bilimleri ve Tasarım Dergisi
Author:  
Abstract:

Bu çalışmada, sokak aydınlatmalarında kullanılan yüksek güçlü LED'lerin soğutulması için ısı borulu soğutucu tasarımı yapılmıştır. Dört adet yüksek güçlü LED, dörtgensel alüminyum plaka üzerine yerleştirilmiş ve U şeklinde üç adet silindirik bakır ısı borusu, alüminyum plakanın içinden geçecek şekilde monte edilmiştir. Isı borusunun ısıyı doğal taşınım ile dış ortama aktarabilmesi için, ısı borusunun yoğuşturucu bölgesine kanatçıklı soğutucu plaka yerleştirilmiştir. Tasarlanan sistemin termal analizi, nümerik olarak ANSYS Fluent yazılımında yapılmıştır. Analizlerde sırasıyla, 15 W, 20 W ve 25 W'lık elektriksel giriş güçlerinin sistem sıcaklık dağılımına etkisi incelenmiştir. Buna ek olarak, sayısal analizlerde, çözüm metodu olarak farklı türbülans modeli ve duvar yaklaşımlarının sıcaklık dağılımına etkisi de incelenmiştir. Sayısal çözümlerin doğrulanması için deneysel çalışma yapılmıştır. Sayısal ve deneysel sonuçlar birbiriyle uyumlu olduğu gözlenmiştir.

Keywords:

The thermal performance of the high-powered LEDs that will be used in street lighting is evaluated numerically and experimentally
2020
Author:  
Abstract:

In this study, a heat pipe coolant has been designed to cool high-power LEDs used in street lighting. Four high-powered LEDs are placed on a four-degree aluminum plate and three-cylindrical copper heat pipe in the form of U is installed to pass through the aluminum plate. In order for the heat tube to be able to transfer heat to the outer environment by natural transfer, a wing-covered cooling plate is placed in the heat tube's coating area. The thermal analysis of the designed system is done numerically in the ANSYS Fluent software. Analysis, respectively, has studied the impact of 15 W, 20 W and 25 W electric input power on the system temperature distribution. In addition, numerical analyses also studied the impact of different turbulence models and wall approaches on temperature distribution as a solution method. Experimental studies have been conducted to verify numerical solutions. Numerical and experimental results have been observed to be compatible with each other.

Keywords:

Numerical and Experimental Analysis Of The Thermal Performance Of High Power Leds To Be Used For Street Ligthing
2020
Author:  
Abstract:

In this study, heat pipe - heat sink geometry was designed for cooling high power LEDs used in street lighting. Four high-power LEDs were placed on a rectangular aluminum plate and three U-shaped cylindrical copper heat pipes were mounted so that they will pass through aluminum plate. In order to transfer heat from heat pipe to the ambient by natural convection, a heat sink with fins was placed in the heat pipe condenser zone. Thermal analysis of the designed system was carried out numerically in ANSYS Fluent software. Analysis were performed for 15 W, 20 W and 25 W of electrical input power, respectively. In addition, the effects of different turbulence models and wall approaches on temperature distribution were also investigated. Experimental study was performed to verify numerical solutions. Numerical and experimental results were observed to be consistent.

Keywords:

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Mühendislik Bilimleri ve Tasarım Dergisi

Field :   Mimarlık, Planlama ve Tasarım; Mühendislik

Journal Type :   Uluslararası

Metrics
Article : 986
Cite : 2.265
2023 Impact : 0.129
Mühendislik Bilimleri ve Tasarım Dergisi