頁籤選單縮合
題名 | 二維複合材料散熱片根部突受等溫變化之熱傳研究=Analysis of Heat Transfer with Constant Temperature at the Base in a 2-D Composite Rectangular Fin |
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作者 | 蘇榮家; | 書刊名 | 筧橋學報 |
卷期 | 7 2000.09[民89.09] |
頁次 | 頁83-100 |
分類號 | 440.34 |
關鍵詞 | 不相等上下表面對流係數; 複合材料散熱片效率; 熱傳導係數之比值; Unequal top and bottom surface convection coefficients; Composite fin efficiency; Ratio of conductivity; |
語文 | 中文(Chinese) |
中文摘要 | 二維複合材料矩形散熱片具有不相等上下表面對流係數之效應,且當根部突受一階梯溫度變化而另一端部被絕熱時之解析解被道出。不相等上下表面對流係數對根部熱傳率之效應被探討。複合材數散熱片效率由散熱片所傳出真實熱量與假設整體散熱片為根部溫度時所傳出熱量之比值來表示。最後,利用根部熱傳率來比較二維複合材料散熱片與單一材料散熱片理論分析上之差異。 |
英文摘要 | Analytical solutions are developed with the effects of unequal top and bottom surface convection coefficients in a two-dimensional composite rectangular fin, and when the primary surface of the fin is subjected to a step change in temperature while the another end is insulated. The effects of unequal surface convection coefficients on the heat transfer rate at the fin base are examined. The composite fin efficiency is also resented by using the ratio of the actual heat transfer through the fin to that which be obtained if entire fin area were at base temperature. Finally, the results of 2-D composite-material fin solutions are compared with those of single-material fin by using the relative error of heat transfer rate per unit depth at the fin base. |
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