標題: Analysis and experimental verification of weight saving with trapezoidal base heat sink
作者: Chen, Hong-Long
Wang, Chi-Chuan
機械工程學系
Department of Mechanical Engineering
關鍵字: Heat sink;Analytical solution;Rectangular base;Trapezoidal base;Material saving
公開日期: 5-三月-2018
摘要: A quick weight saving methodology with trapezoidal base heat sink applicable for electronic cooling application is studied analytically, numerically, and experimentally. The conventional heat sink with rectangular base can be modified into trapezoidal base for material saving. A differential equation capable of describing the temperature distribution of the trapezoidal base is derived and its closed-form analytic expression is derived. It is found that three parameters r(A) (ratio of effective surface area to the base area), r(d) (ratio of chip lateral length to the base length) and h(+) (modified convection heat transfer coefficient) play pivotal roles in balancing the material saving and the performance loss. When r(d) = 0.1, the material saving for r(t) = 0.6 is about 18%; while the corresponding performance loss is 2.93%. When r(d) = 0.2, the material saving for r(t) = 0.6 is about 16%; while the corresponding performance loss is 2.47%. The analytical results are verified with experiments with good agreement. (C) 2017 Elsevier Ltd. All rights reserved.
URI: http://dx.doi.org/10.1016/j.applthermaleng.2017.12.101
http://hdl.handle.net/11536/144587
ISSN: 1359-4311
DOI: 10.1016/j.applthermaleng.2017.12.101
期刊: APPLIED THERMAL ENGINEERING
Volume: 132
起始頁: 275
結束頁: 282
顯示於類別:期刊論文