雙管熱管散熱器研製與其應用開發

本論文主要再進行雙管散熱器研製與其應用發，其中，雙管熱管為一只具備內外管構造的熱管，由本CCT實驗室所發明與開發，目的在恢復原始熱管的熱傳導行為並增加散熱器之散熱功率。研究方法以探討傳統熱管之原始熱傳導行為在接上散熱鰭片後，其熱傳導行為之變化，並開發雙管熱管達到恢復原始熱傳導行為，進而增加散熱器之散熱功率。本研究進行雙管熱管散熱裝置之散熱功率測定，並與傳統熱管散熱器進行比較。另外，本研究以紅外線熱像儀及彩色Schlieren等光學技術對熱管及其散熱鰭片間的熱傳行為進行量測。在彩Schlieren量測方面，成功以水為介質觀測出雙管與單管熱管熱傳導行為差異。實驗過程，自製雙管熱管以一外徑?6mm、長200mm之溝槽式熱管，在熱管絕熱段植入一外徑? 5.4mm、壁厚0.3mm、長60mm且熱傳導係數值極小的不鏽鋼網，量測雙管熱管散熱器之熱響應與散熱功率，並與傳統熱管散熱器進行較。結果顯示，雙管熱管散熱器之熱響應與傳統熱管散熱器接近，但雙管熱管達均溫時比傳統熱管高約3℃；另外，在最大散熱功率下，雙管熱管之散熱功率比傳統散熱器增加最大81%。

關鍵字

雙管熱管、Schlieren熱流顯像；溝槽式熱管；最大散熱功率；熱響應

並列摘要

This article is focused on developing the dual-pipe heat pipe cooler and its applications, where the dual-pipe heat pipe is made of the inner and outer pipes, which is invented and developed by our CCt Laboratory. the dual-pipe heat pipe is developed to recover the original heat transfer property of the heat pipe and to increase the cooling power. Research process is to steady the change of the original transfer property of the heat pipe in connection with the heat sink. This work aims to develop the dual-pipe heat pipe for recovering the original heat transfer property of the heat pipe and increasing the cooling power of the dual-pipe heat pipe cooler in comparison with the conventional heat pipe cooler. Moreover, the research uses the infrared thermal camera and color Schlieren to measure the heat transfer property of heat pipe and heat sink. The color Schlieren measurements have successfully observe the characteristics of the heat transfer for the heat pipe and the dual-pipe heat pipe in the water. Experiments use a grooved heat pipe with outer diameter of 6mm and length 200mm. A steel mesh pipe the low thermal conductivity with outer diameter 5.4mm, thickness 0.3mm, length 60mm is build in inner pipe, and implanted in adiabatic section of heat pipe. In process, the thermal response and the cooling power of the dual-pipe heat pipe cooler are measured in comparison with the conventional heat pipe cooler. The results show that the thermal response of the dual-pipe heat pipe cooler is similar to the conventional heat pipe cooler. Moreover, the temperature of the dual-pipe heat pipe cooler is 3℃ larger than the conventional heat pipe cooler at the steady state. Moreover there is 81% increment rate of cooling power for the dual-pipe heat pipe in comparison with the conventional heat pipe while the maximum heat transfer rate is applied.

並列關鍵字

Dual-pipe heat pipe ； Schlieren thermal visualization ； Grooved heat pipe ； Maximum heat transfer rate ； Thermal response

參考文獻

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