本研究之目的為兩相熱虹吸式熱管儲冰槽實驗研究與分析。本研究所提出之兩相熱虹吸式熱管儲冰槽具有3種不同運轉模式分別為一般模式、儲冰模式及融冰模式。本文主要藉由實驗方式進行不同模式下兩相熱虹吸式熱管熱交換特性分析。
在儲冰模式性能研究方面，本研究熱管內部採用之工作流體為R-134a與R-410a，利用熱管內部工作流體吸收儲能物質的熱量產生沸騰，氣態工作流體因浮力作用向上流動至雙套管熱交換器內，此時藉由蒸氣壓縮循環所產生低溫的冷媒於雙套管內與工作流體進行熱交換後，熱管內部之工作流體冷凝，冷凝液靠著重力作用，沿著熱管管壁向下流回熱管底部的過程中，將吸收儲能物質的熱量產生薄膜沸騰（Film Evaporation），再次回到儲冰端熱交換器完成循環，達到儲冰的目的。本文首先藉由實驗研究工作流體填充量42%、50%、58%進行儲冰槽運轉性能測試，藉由改變恆溫水槽所提供之鹵水溫度，分析探討各工作流體填充量之儲冷性能與兩相熱虹吸式熱管熱交換特性分析。
The purpose of this study is to study and analyze the two-phase thermosyphon heat pipe ice storage tank. The two-phase thermosyphon heat pipe ice storage tank proposed by the research institute has three different operation modes: general mode, ice storage mode and ice melting mode. In this paper, the heat exchange characteristics of two-phase thermosyphon heat pipes in different modes are analyzed experimentally.
In the research on the performance of ice storage mode, the working fluids used in the heat pipe of this study are R-134a and R-410a. The internal working fluid of the heat pipe absorbs the heat of the energy storage material to generate boiling, and the gaseous working fluid flows upward to the double set due to buoyancy. In the tube heat exchanger, after the low-temperature refrigerant generated by the vapor compression cycle exchanges heat with the working fluid in the double casing, the working fluid inside the heat pipe condenses, and the condensate acts by gravity along the heat pipe wall. During the process of flowing down to the bottom of the heat pipe, the heat of the energy storage material is absorbed into a film Evaporation, and the heat is returned to the heat storage end of the ice storage end to complete the cycle. In this paper, the ice storage tank running performance test is carried out by experimentally studying the working fluid filling amount of 42%, 50% and 58%. By changing the brine temperature provided by the constant temperature water tank, the cold storage performance of each working fluid filling amount is analyzed and discussed. Analysis of heat exchange characteristics of phase-heat siphon heat pipes.
