兩相熱虹吸式熱管儲冰槽理論研究與分析

Theoretical analysis of two-phase closed thermosyphon ice storage tank

廖雪芬(Hsueh-Fen Liao)

指導教授 ： 陳希立

國立臺灣大學/工學院/機械工程學研究所/碩士(2019年)

https://doi.org/10.6342/NTU201904010

摘要

近年來由於氣候劇烈變化，夏日空調用電量急遽上升，若能將尖峰用電進行轉移，利用離峰電力進行儲能，能有助改善台灣的供電狀況。
本研究利用兩相熱虹吸式熱管優越的傳導特性進行能量傳遞與儲存，在不需要外部電能的供應下即可操作，藉由熱虹吸管內部工作流體的薄膜蒸發(Film evaporation)與薄膜冷凝(Film condensation)具有高傳熱能力機制進行熱交換，能夠有效提升儲冰槽之性能。
本研究提出新型的兩相熱虹吸式熱管儲冰槽設計，針對不同儲冰端溫度的儲冰性能進行分析，透過理論模式探討影響之參數，並與儲冰槽測試實驗進行熱傳量比對，誤差率約為 3.5% 至 6%。而後針對熱力電阻電容理論模式進行熱虹吸式熱管儲冰槽的改善策略分析，提出未來可提升儲冰性能之方向。

關鍵字

熱虹吸式熱管 ； 儲冰槽 ； 熱阻

並列摘要

In recent years, due to the dramatic changes in the climate, the amount of electricity used in summer air conditioners has risen sharply. If the peaks can be used for power transfer, using off-peak power for energy storage can help improve the power supply situation in Taiwan.
In this study, the superior conduction characteristics of the two-phase thermosyphon heat pipe are used for energy transfer and storage, and can be operated without the supply of external electric energy. Film evaporation and film condensation of the working fluid inside the thermosiphon (Film) Condensation) The high heat transfer capacity mechanism for heat exchange can effectively improve the performance of the ice storage tank.
This study proposes a new two-phase thermosyphon heat pipe ice storage tank design, analyzing the ice storage performance of different ice storage temperatures, exploring the parameters of the influence through theoretical models, and compares the heat transfer with the ice storage tank experimental test. The error rate is approximately 3.5% to 6%. Then, based on the theoretical model of the thermoresistive capacitance, the improvement strategy of the thermosyphon heat pipe ice storage tank is analyzed, and the direction of improving the ice storage performance in the future is proposed.

並列關鍵字

thermosiphon heat pipe ； ice storage tank ； thermal resistance analysis

參考文獻

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