|کد مقاله||سال انتشار||مقاله انگلیسی||ترجمه فارسی||تعداد کلمات|
|147194||2018||6 صفحه PDF||سفارش دهید||1554 کلمه|
Publisher : Elsevier - Science Direct (الزویر - ساینس دایرکت)
Journal : Materials Today: Proceedings, Volume 5, Issue 2, Part 1, 2018, Pages 5481-5486
The main reason to undertake this project was to highlight the application of Mechanical Engineering sciences in other engineering branches primarily electrical and electronics. A 65W led street lamp having model was acquired from a leading electronics manufacturing company Optronics LED. The model was first inspected and then the dimensions were measured accurately using Vernier Callipers and the heat sink was found to be approximately of rectangular cross section. In the experimental setup the LED model was given power supply and was run for 2 Hours using thermo couples temperatures were measured at various distances along the heat sink the source temperature and ambient temperature was found to be constant after sometime. The results were recorded. Using the experimental results calculations were done to find the Reynolds number which led to the conclusion that the flow is laminar using the Nusselt number relation the convective heat transfer coefficient was obtained by assuming appropriate boundary conditions and Murray and Gardner assumptions. The value was used throughout the analysis. Further calculations were done to obtain thermal performance parameters. The thermal performance parameters were calculated and the models were created to perform Thermal analysis. LED lamps being a trending topic more and more research is being done in this area.