代數螺旋線型渦卷式冷媒壓縮機製作與實驗性能分析

摘要論文名稱：代數螺旋線型渦卷式冷媒壓縮機製作與實驗性能分析頁數：76 校所別：國立臺北科技大學能源與冷凍空調工程系碩士班畢業時間：一百零一學年度第二學期學位：碩士研究生：柳榮昆指導教授：黃博全博士關鍵詞：代數螺旋線、圓形漸開線、渦卷式冷媒壓縮機近年來由於全球溫室效應，環保意識，能源危機及經濟的考量下，如何提升冷媒壓縮機效能，已成為冷凍空調界上的一個重要議題，由於利用創新的代數螺旋線形成之渦卷葉片系統較傳統漸開線形成之渦卷葉片有較高容積壓縮比，可於不改變壓縮機尺寸大小與運轉機構下，達到提升渦卷冷媒壓縮機壓縮效能，甚能符合前述環保節能的目的。本研究旨要以實作方式研製一具代數螺旋線型渦卷葉片之渦卷式冷媒壓縮機實體，並置於當今市面上相同大小之漸開線型渦卷式冷媒壓縮機之機體上(即取代其漸開線型渦卷葉片)，以實驗方式探討代數螺旋線型之渦卷式冷媒壓縮機實際運作之可行性，並在固定蒸發器溫度下，改變不同冷凝器溫度之工況條件下與圓形漸開線渦卷式冷媒壓縮機進行性能比較分析，以為未來產品商業化的參考。實驗結果顯示使用代數螺旋線型渦卷式冷媒壓縮機較原漸開線型機型具有下列特色：(1)在蒸發器溫度3℃冷凝器溫度35℃時，其質量流率增加2.82%、壓縮機能力(冷凍能力)增加2.39%、系統COP增加2.37%，但其耗功並不隨之上升;(2)加工精度對代數渦卷體之運轉壽命及噪音有極大影響;(3)本研究證實透過良好精度加工的代數螺旋線型渦卷可置於現有機型機構下運轉，並可取代圓形漸開線渦卷式冷媒壓縮機往更高噸數應用發展。

關鍵字

代數螺旋線；圓形漸開線；渦卷式冷媒壓縮機

並列摘要

Abstract Title：Manufacture and Measure of Refrigerant Compressor with Algebraic- Spiral Scroll Pages：76 School：National Taipei University of Technology Department：Energy and Refrigerating Air-Conditioning Engineering Time：June , 2012 Degree：Master Researcher：Jung-Kun Liu Advisor：Po-Chuan Huang Ph. D. Keywords： Algebraic spiral, Circular involute, Scroll refrigerant compressor Due to the global warming effect, environmental protection, energy crisis and economic consideration, more effective compressors have become important topics in the refrigeration and air-conditioning industry. Because the volumetric compressive ratio caused by innovative algebraic-spiral-shape scroll-blade system is higher than that by traditional involute-shape scroll-blade system, the scroll compressor with algebraic -spiral-shape scroll-blade system can upgrade its efficiency without changing the size and operating mechanism. Therefore, using the algebraic-spiral scroll blade technique in the refrigeration and air-conditioning products may fulfill the above-mentioned goals. The purpose of this study is to develop a refrigerant compressor with Algebraic spiral scroll by implementation. Placing on a same-size traditional scroll refrigerant compressor (i.e., replacing the original involute scroll), the operating feasibility of this kind of scroll refrigerant compressor is investigated experimentally. In addition, under fixed evaporator temperature and various condenser temperature, a comparison of efficient performance between the algebraic-spiral and circle-involute scroll compressor is executed as the reference for merchandise in the future. Experimental results show that replacing the circular involute scroll with algebraic-spiral scroll, the refrigerant compressor has the following features: (1) under the working condition of the evaporator temperature 3℃ and condenser temperature 35 ℃, the mass flow rate increases 2.82%, compressor capacity (cooling capacity) augments 2.39%, the system COP increases 2.37%, but its power consumption does not rise, (2) Machining precision has a dramatic effect on the operational life and noise of the algebra-spiral volute body, (3) replacing the traditional circular-involute scroll, a good precision machining algebraic-spiral scroll can be operated on the existing refrigerant compressor mechanism, and can be developed towards higher tonnage application.

並列關鍵字

Algebraic spiral ； Circular involute ； Scroll refrigerant compressor

參考文獻

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[8] Y. Liu, C. Hung, and Y. Chang, “Study on involute of circle with variable radii in a scroll compressor”, Mechanism and Machine Theory, vol. 45, pp. 1520-1536, 2010.

[10] Y. R Lee, and W. F. Wu, “On the profile design of a scroll compressor”, International Journal of refrigeration, vol.18, pp. 308-317, 1995.

[14] K. T. Ooi, and J. Zhu, “Convective heat transfer in a scroll compressor chamber: a 2-D simulation”, International Journal of Thermal Science, vol.43, pp.677-688, 2004.

[17] Michael M. Cui,“ Numerical Study of Unsteady flows in a Scroll Compressor”, Journal of Fluids Engineering, vol. 128, pp. 947-955, 2006.

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代數螺旋線型渦卷式冷媒壓縮機製作與實驗性能分析

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