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系統識別號 U0026-1608201516140700
論文名稱(中文) 自由活塞式史特靈冷凍機之設計與分析
論文名稱(英文) Analysis and Design of a Free-Piston Stirling Cooler
校院名稱 成功大學
系所名稱(中) 航空太空工程學系
系所名稱(英) Department of Aeronautics & Astronautics
學年度 103
學期 2
出版年 104
研究生(中文) 許益致
研究生(英文) Yi-Chih Hsu
學號 P46021097
學位類別 碩士
語文別 中文
論文頁數 88頁
口試委員 指導教授-鄭金祥
口試委員-顏維謀
口試委員-陳寒濤
口試委員-康尚文
中文關鍵字 自由活塞式  史特靈冷凍機  理論模型 
英文關鍵字 free-piston  Stirling cooler  theoretical model 
學科別分類
中文摘要 本研究以開發自由活塞式冷凍機為主要目標,有別於傳統機構型史特靈冷凍機,自由活塞式冷凍機,使用平面彈簧做為儲能元件,此結構無法以連桿機構限制移氣器衝程與頻率,亦無法固定活塞與移氣器間之相位差,因此難以事先掌握其動態表現,故藉由理論模型之動力與熱力模式,分析求得工作區域與元件之位移、體積、質量、壓力與溫度,並以該次所求得之數值作為下一步之計算基準,以預測冷凍機之動態變化。藉由考慮系統之能量損失對製冷溫度的影響可得瞬時溫度與能量改變量。
研究發展之模型用以討論於不同操作參數與幾何參數下,系統穩定運轉之性能表現,以建立完整的自由活塞式史特靈冷凍機之預測模型。於環境溫度為25˚C時,工作流體填充壓力為4atm時,維持馬達操作頻率為30Hz為操作條件,可得到約183K之無負載製冷壁面溫度。
英文摘要 Free-piston Stirling cooler (FPSC) is different from traditional Stirling cooler. In mechanism structure, the position of displacer is not restricted by crank shift but only planar spring which is made by particular steel. The piston is driven by linear motor in specific frequency and stroke. However, the dynamic behavior of the displacer is difficult to predict which is influenced by mass, damping and the stiffness of the planar spring. The aim of this study is to develop a theoretical model for practical application. In this study, the dynamic behavior and all of the physic parameters are calculated by theoretical model. The movement of the displacer, volume of working zone, mass, pressure and temperature of working fluid are analyzed by theoretical model which is consist of thermodynamic model and dynamic model. The result of theoretical model shows that the pressure of working fluid of 4 atm exhibits the best performance. Therefore, the prototype of free-piston Stirling cooler is able to reach a no-load temperature of 183 K at ambient/start temperature of 298 K, operating frequency of 30 Hz and charging pressure of 4 atm.
論文目次 摘要 I
EXTENDED ABSTRACT II
誌謝 VII
目錄 VIII
表目錄 XII
圖目錄 XIII
符號索引 XVI
第一章 前言 1
1.1 研究背景與動機 1
1.2 史特靈冷凍機介紹 2
1.2.1 發展歷史 2
1.2.2 結構分類 3
1.2.3 原理與構造 4
1.3 研究方向 6
1.4 論文架構 6
第二章 理論模型 8
2.1 基本假設 8
2.2 動力模式 10
2.2.1 活塞運動軌跡 10
2.2.2 移氣器運動軌跡 10
2.3 初始條件 13
2.3.1 碰撞處理 15
2.4 熱力模式 16
2.4.1 再生區 16
2.4.2 壓縮區 22
2.4.3 膨脹區 24
2.4.4 製冷頭 27
第三章 冷凍機設計與實驗 30
3.1 設計原理 30
3.2 設計概念 30
3.2.1 動力元件 31
3.2.2 傳動機構 31
3.2.3 製冷汽缸 32
3.2.4 移氣器 32
3.2.5 平面彈簧 33
3.2.6 再生器 33
3.2.7 工作流體 34
3.3 設備與實驗目標 35
3.3.1 熱電偶 35
3.3.2 線性馬達 35
3.3.3 資料擷取器 36
3.3.4 電源供應器 36
3.4 原型機組立 36
3.5 量測方法 37
第四章 結果與討論 39
4.1 動力性質 39
4.2 熱力性質 40
4.3 參數分析 42
4.3.1 初始溫度的影響 43
4.3.2 操作頻率的影響 43
4.3.3 系統壓力的影響 44
4.3.4 再生器的影響 44
4.3.5 熱損失的影響 45
4.3.6 平面彈簧的影響 45
4.4 實驗結果與驗證 46
4.4.1 操作頻率的影響 46
4.4.2 系統壓力的影響 47
4.4.3 性能係數 47
第五章 結論 49
參考文獻 50
參考文獻 [1] A. J. Organ, The regenerator and the Stirling engine: Wiley, 1997.
[2] B. William T, "Stirling cycle type thermal device," U.S. Patents 3552120 A, 1971.
[3] N. Chen, X. Chen, Y. Wu, C. Yang, and L. Xu, "Spiral profile design and parameter analysis of flexure spring," Cryogenics, Vol. 46, pp. 409-419, 2006.
[4] H. Ter Brake and G. Wiegerinck, "Low-power cryocooler survey," Cryogenics, Vol. 42, pp. 705-718, 2002.
[5] G. Haarhuis, "The mc 80-a magnetically driven stirling refrigerator," Cryogenics, Vol. 18, pp. 656-658, 1978.
[6] B. Jones, "Development for space use of BAe’s improved single-stage Stirling cycle cooler for applications in the range 50–80 K," Cryocoolers 8, Springer, 1995, pp. 1-11.
[7] A. G. Rudick, "Apparatus using stirling cooler system and methods of use," U.S. Patents 20010011459 A1,2004.
[8] R. Ackemann, "Dynamic analysis of a small free-piston resonant cryorefrigerator," Refrigeration for Cryogenic Sensors and Electronic Systems, Boulder, Colorado, pp. 57-69, 1981.
[9] Ö. Ercan Ataer and H. Karabulut, "Thermodynamic analysis of the V-type Stirling-cycle refrigerator," International Journal of Refrigeration, Vol. 28, pp. 183-189, 2005.
[10] G. Walker and J. R. Senft, Free-piston Stirling engines , Springer, 1985.
[11] S. Horn, M. Lumpkin, and B. Walters, "Pneumatically driven split-cycle cryogenic refrigerator," Advances in Cryogenic Engineering, Springer, 1995, pp. 216-220.
[12] 黃上庭, 結合自由活塞式史特靈引擎與線性發電機之理論模式與設計, 成功大學航空太空工程學系學位論文, 2014.
[13] 黃振軒, 分置式史特靈冷凍機之性能增進,成功大學航空太空工程學系學位論文, 2014.
[14] G. Swift, "Thermoacoustics: a unifying perspective for some engines and refrigerators acoustical society of America," Sewickley, PA, 2002.+0
[15] S. Choi, K. Nam, and S. Jeong, "Investigation on the pressure drop characteristics of cryocooler regenerators under oscillating flow and pulsating pressure conditions," Cryogenics, Vol. 44, pp. 203-210, 2004.
[16] R. A. Ackermann, Cryogenic regenerative heat exchangers, Springer, 1997.
[17] Y. Ju, Y. Jiang, and Y. Zhou, "Experimental study of the oscillating flow characteristics for a regenerator in a pulse tube cryocooler," Cryogenics, Vol. 38, pp. 649-656, 1998.
[18] W. M. Kays and A. L. London, Compact heat exchangers, 1984.
[19] M. Tanaka, I. Yamashita, and F. Chisaka, "Flow and heat transfer characteristics of the Stirling engine regenerator in an oscillating flow," JSME international journal. Ser. 2, Fluids engineering, heat transfer, power, combustion, thermophysical properties, Vol. 33, pp. 283-289, 1990.
[20] F. Zimmerman and R. Longsworth, "Shuttle heat transfer," Advances in Cryogenic Engineering, Springer, 1971, pp. 342-351.
[21] R. White, Vuilleumier Cycle Cryogenic Refrigeration, DTIC Document1976.
[22] S.-C. Costa, M. Tutar, I. Barreno, J.-A. Esnaola, H. Barrutia, D. García, et al., "Experimental and numerical flow investigation of Stirling engine regenerator," Energy, Vol. 72, pp. 800-812, 8/1/ 2014.
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