本研究為探討史特靈熱泵之冷、熱端熱交換器對其性能的影響，並實際改善史特靈熱泵之性能係數。在理論方面，本研究之理論模型為參考非理想絕熱模型，並考慮工作流體流經腔室產生之壓降、腔室間截面積驟變產生之壓降、工作流體與壁面的熱傳、腔室壁面間的熱傳和壁面與水套內流體的熱傳，和本研究設計之熱交換器的影響，以進行理論模型的建立，再針對不同的 冷、熱端熱交換器對史特靈熱泵性能的影響進行分析與比較；在實驗方面，透過理論模型的分析進行冷、熱端熱交換器的設計，再針對不同的冷、熱端熱交換器對史特靈熱泵性能的影響進行實驗量測、分析以及比較，最後，將實驗結果與理論模型進行驗證。本研究探討的冷端熱交換可分為三種：(1) Type 1法蘭搭配銅管熱交換器、(2) Type 2內外鰭片式熱交換器、(3) Type 3內外鰭片式熱交換器搭配熱沉。熱端熱交換器則可分為兩種：(1) 60片內鰭片之內外鰭片式熱交換器(60 Fins)、(2) 120片內鰭片之內外鰭片式熱交換器(120 Fins)。當冷端熱交換器為Type 3、熱端熱交換器為120 Fins、填充壓力為4 bar和轉速為500 rpm時，COP_M可高達2.31。

In this study, cold and hot sides of a new heat exchanger in a Stirling heat pump are re-designed to get higher performance. The heat absorption rate through surfaces of the cold side, the heat-rejection rate through surfaces of the hot side, and coefficient of performance (COP) are analyzed with the aid of the thermodynamic model. Three types of heat exchangers in the cold side and two types in the hot side are analyzed and are studied to choose which one gives the heat pump the highest performance. The thermodynamic model shows the new heat exchanger Type 3 in the cold side and 120 Fins in the hot side, and COP can reach up to 2.31 at 4 bar charged pressure and 500 rpm rotational speed.

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