Application of the Inverse Method to Estimate Heat transfer Coefficient on CPU Heatsink using Experimental Temperature Data

• Main Authors: Yong-Zhi Liu, 劉永智
• Other Authors: Han-Taw Chen
• Format: Others
• Language: zh-TW
• Published: 2006
• Online Access: http://ndltd.ncl.edu.tw/handle/07670067954292036158

碩士 === 國立成功大學 === 機械工程學系碩博士班 === 94 === The present study applies the hybrid method of the Laplace transform technique and finite-difference method in conjunction with least-squares scheme and experimental temperature data to predict the heat dissipation and the average convection heat transfer coefficient on CPU heatsink. Due to the thickness of the standard test material is very smaller than its length and width, the one-dimension mathematical model is applied to perform the present inverse analysis. The effects of the fin spacing and fin height on the present estimates can not be negligible for free convection and forced convection. The free convection heat transfer coefficient is increased with increasing the fin spacing and is decreased with increasing the fin height. A comparison of the forced convection heat transfer coefficient between the present estimates and previous results is made in order to evidence the accuracy and reliability of the present inverse scheme.