以熱電致冷器改善熱管性能量測平台之不穩定性

Using Thermoelectric Cooling Chip (TEC) to Improve the Stability of Heat Pipe Performance Test Instrument

張文鏵(Wen-Hua Zhang)

指導教授 ： 林唯耕

國立清華大學/原子科學院/工程與系統科學系/碩士(2010年)

摘要

熱管是一種高熱傳導性的移熱裝置，它主要是利用內部工作流體在相變化時所具有的潛熱來傳送熱量，在操作溫度範圍內進行雙相熱傳來傳遞大量熱能的工具，因此可稱為熱的超導體(super conductor)。
利用熱管將主要發熱源產生的熱量傳到外部，除了有效解決小空間散熱的問題，同時兼顧到無噪音、不須提供額外能量的優點。所以目前熱管普遍應用於電器、電子零件的冷卻應用，其所應用的範圍非常廣泛。因此準確量測熱管的性能就變的非常重要。
本研究主要的目的為分析「熱管性能量測平台」的冷凝部各參數對於熱管性能量測準確度的影響。分別針對熱管性能量測平台之熱損失及內熱阻量測模式做探討；對於冷凝端水冷結構重新設計，以有效的提升冷凝部的移熱效率，減少量測過程中的熱損失，將熱管性能量測平台之熱損失控制在10%以內，並且準確的量測冷凝部內熱管溫度及熱管本身的內熱阻，以增加熱管性能測試的準確性。
此外，建立一套TEC Controller(熱電致冷器溫度控制機台)設備，將熱電致冷器(TE Cooler)運用在熱管性能測試平台冷凝部，可以精準並快速的對於冷凝部及絕熱部做溫控，以縮短實驗的時間並提昇熱管性能量測的準確性。

關鍵字: 熱管、熱損失、最大熱傳量、熱電致冷器

關鍵字

熱管 ； 熱損失 ； 最大熱傳量 ； 熱電致冷器

並列摘要

Heat pipe is a device of high heat-conduction. It mainly uses inside fluid to convey heat energy while the phase is changing. It’s a tool which can transmit a large amount of heat energy in operating temperature while phase is changing. Therefore, heat pipe also named the superconductor.
Using heat pipe transmit the heat energy of the heater source to outside, it is not only solving the problem of heat elimination in small space but also noiseless, and it does not need to offer extra energy. Heat pipe is presently applying to the cooling of the electric equipment, and it uses extremely extensively. So, it’s very important to measure the performance of heat pipe.
The major purpose of this study analysis the condenser parameters of Heat Pipe Performance Test Instrument (HPPTI) which affects the accuracy of the heat pipe performance. The study is aimed at discussing with the heat loss problems of HPPTI and the model of thermal resistance. Improving the section of water-cooling structure could increase the efficiency of heat remove, and reduce the heat loss problem in measuring process. It also could keep the heat loss of HPPTI under 10% and accurately measure the temperature inside the heat pipe and the thermal resistance in the condenser. Hence, it could increase the accuracy of HPPTI.
Moreover, setting up an equipment named ” TEC controller ” (Thermoelectric Cooling Chip Controller) to measure the condenser section of HPPTI, which can exactly control the temperature in adiabatic section and condenser section. Therefore, it is effective to reduce the experimenting time and increase the accuracy of HPPTI.

Key word: Heat Pipe、heat loss、Maximum Heat Transfer 、Thermoelectric Cooling Chip

並列關鍵字

Heat Pipe ； Heat loss ； Maximum Heat Transfer ； Thermoelectric Cooling Chip

參考文獻

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2. Ioan Sauciuc, “ The Design and Testing of the Super Fiber Heat pipes for Electronics Cooling ”, IEEE, Sixteenth IEEE SEMI-THERM, pp.27-32, 2000.

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