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研究生: 謝祥楷
Hsieh, Hsiang-Kai
論文名稱: 汽車空調機冷媒換裝與性能提升裝置之開發與研究
Research and Development of Refrigerant Replacement and Performance Enhancer for Automobile Air-Conditioner
指導教授: 鄧敦平
Teng, Tun-Ping
口試委員: 莫懷恩
Mo, Huai-En
陳韋任
Chen, Wei-Jen
鄧敦平
Teng, Tun-Ping
口試日期: 2022/06/15
學位類別: 碩士
Master
系所名稱: 工業教育學系
Department of Industrial Education
論文出版年: 2022
畢業學年度: 110
語文別: 中文
論文頁數: 92
中文關鍵詞: 汽車空調機性能係數能源效率比碳氫冷媒蒸發冷卻性能提升裝置
英文關鍵詞: Automobile air-conditioner (MAC), Coefficient of performance (COP), Energy efficiency ratio (EER), Evaporative cooling performance enhancer (ECPE), Hydrocarbon refrigerant
研究方法: 實驗設計法
DOI URL: http://doi.org/10.6345/NTNU202200878
論文種類: 學術論文
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  • 隨著全球環境意識提升與法規的限制,用於汽車空調機的R-134a因為高GWP而必須面臨汰換。本研究採用R-600a與HR-12作為R-134a汽車空調機直接換裝的替代冷媒,以不同充填量之下的相關性能進行比較以決定最佳替代R-134a的冷媒以及充填量。此外,本研究進一步開發蒸發冷卻性能提升裝置去強化汽車空調機冷凝器的散熱能力,以提升汽車空調機的性能與效率。冷媒換裝的研究結果顯示,R-600a在飽和溫度及壓力與現有的R-134a熱力膨脹閥無法匹配會使得送風溫度升高,導致冷氣能力下降而不適合直接替代R-134a。HR-12則是在冷媒充填量247.5g時,其COP、冷氣能力及EER分別比R-134a高22.18%、5.44%以及72.17%。蒸發冷卻性能提升裝置的研究結果顯示,在E1(30℃)條件時,原機本身即可使冷凝器達到足夠的熱交換能力,因此在各個厚度的冷卻板,COP與EER並沒有明顯提升。在E2(35℃)條件時,愈厚的冷卻板因為可吸附之水量較高而能提升冷凝器散熱能力,故裝設THK3(7 cm)的COP與EER分別比原機提升3.58%與6.66%。THK3(7 cm)在E3(40℃)條件下,環境溫度的升高使得蒸發冷卻性能提升裝置的效益進一步地增加,因此COP與EER分別比原機提升7.76%與13.09%。

    R-134a used in automobile air conditioners (MACs) has to face replacement due to its high global warming potential (GWP) with global environmental awareness and regulatory constraints. In this study, R-600a and HR-12 were used as replacement refrigerants for direct replacement of R-134a-MACs, and the relative performances under different charging amounts of refrigerant were compared to determine the optimal refrigerant and charging amounts of refrigerant to replace R-134a. In addition, the evaporative cooling performance enhancer (ECPE) was also developed to enhance the heat dissipation capacity of the condenser and improve the performance and efficiency of the MAC. The results of the refrigerant replacement show that the inability of R-600a to match the existing R-134a thermal expansion valve in saturation temperature and pressure will increase the supply air temperature, resulting in a decrease in cooling capacity, which is not suitable for direct replacement of R-134a. The coefficient of performance (COP), cooling capacity, and energy efficiency ratio (EER) of HR-12 with a refrigerant charging amount of 247.5g were 22.18%, 5.44%, and 72.17% higher than R-134a, respectively. The research results of the ECPE show that under the condition of E1 (30°C), the condenser of the original machine could achieve sufficient heat exchange capacity. Therefore, the COP and EER were not significantly improved with the cooling plate of various thicknesses. The thicker cooling plate could improve the heat dissipation capacity of the condenser because of the higher amount of water that could be adsorbed under the condition of E2 (35℃). Therefore, the COP and EER of the THK3 (7 cm) were 3.58% and 6.66% higher than the original machine, respectively. Under the condition of E3 (40°C) for THK3 (7 cm), the increase in the ambient temperature further increased the benefit of the ECPE. Therefore, the COP and EER were 7.76% and 13.09% higher than the original machine, respectively.

    第一章 緒論 1 1.1研究背景與動機 1 1.2研究目的 4 1.3研究流程 4 1.4 論文架構 7 1.5 文獻回顧 8 第二章 理論基礎與文獻探討 11 2.1 蒸氣壓縮冷凍循環系統 11 2.2 空氣調節系統 17 2.3 環保新興替代冷媒 20 2.4 蒸發冷卻應用技術 22 第三章 實驗設計 25 3.1 冷媒模擬分析 26 3.2 汽車空調機MAC實驗系統架構 28 3.3 MAC換裝冷媒系統試驗方法與步驟 36 3.4 MAC蒸發冷卻性能提升裝置試驗方法與步驟 39 3.5 蒸發冷卻性能提升裝置的設計 41 3.6 儀器設備介紹 49 3.7 誤差分析 51 第四章 結果與討論 53 4.1 選擇最佳換裝冷媒的相關性能分析 54 4.2 蒸發冷卻空氣側狀態性質分析 63 4.3 空氣側相關性能比較 69 4.4 機械側相關性能比較 74 第五章 結論與建議 77 5.1結論 77 5.2 建議 80 參考文獻 81 符號釋義 89 作者簡介 91

    [1] N. Abas, A.R. Kalair, N. Khan, A. Haider, Z. Saleem, M.S. Saleem, “Natural and synthetic refrigerants, global warming: A review,” Renewable and Sustainable Energy Reviews, vol. 90, pp. 557–569, 2018.
    [2] M.T. Huang, P.M. Zhai, “Achieving Paris Agreement temperature goals requires carbon neutrality by middle century with far-reaching transitions in the whole society,” Advances in Climate Change Research, vol. 12, pp. 281–286, 2021.
    [3] International Institute of Refrigeration, 38th Informatory note on refrigeration technologies, The Role of Refrigeration in the Global Economy, Int. Inst. Refrig, 2019.
    [4] UNEP, Report of the Twenty-Eighth Meeting of the Parties to the Montreal Protocol on Substances that Deplete the Ozone Layer, Kigali, Rwanda, 2016.
    [5] European Commission, Regulation (EU) No 517/2014 of the European Parliament and of the Council of 16 April 2014 on Fluorinated Greenhouse Gases and Repealing Regulation (EC) No 842/2006, 2014.
    [6] EPA of United States, Retrieved from https://www.epa.gov/snap/snap-substitutes-sector
    [7] Ministry of the Environment of Japan, Act on Rational Use and Proper Management of Fluorocarbons JAPAN (Fluorocarbon Emissions Control Act), 2019. Retrieved from https://www.env.go.jp/earth/furon/files/englishmaterial_rev.pdf
    [8] ASHRAE, Chapter 29 Refrigerants in 2017 ASHRAE Handbook-Fundamentals (SI), ASHRAE Inc, 2017.
    [9] MOTC, Ministry of Transportation and Communications Taiwan Data Query, Commonly Used Transportation Statistics, Retrieved from https://stat.motc.gov.tw/mocdb/stmain.jsp?sys=100&funid=a3301
    [10] P. O. Sotomayor, J. A. R. Parise, “Characterization and simulation of an open piston compressor for application on automotive air-conditioning systems operating with R134a, R1234yf and R290,” International Journal of Refrigeration, vol. 61, pp. 100–116, 2016.
    [11] E. Navarro, J. M. Coberan, I. O. Martínez, J. Gonzalvez, “Comparative experimental study of an open piston compressor working with R-1234yf, R-134a and R-290,” International Journal of Refrigeration, vol. 36, pp. 768–775, 2013.
    [12] J.K. Vaghela, “Comparative evaluation of an automobile air-conditioning system using R134a and its alternative refrigerants,” Energy Procedia, vol. 109, pp. 153–160, 2017.
    [13] Y. Zhang , C. Liu , T. Wang , L. Pan , W. Li , J. Shi, J. Chen, “Leakage analysis and concentration distribution of flammable refrigerant R290 in the automobile air conditioner system,” International Journal of Refrigeration, vol. 110, pp. 286–294, 2020.
    [14] J. Wu, G. Zhou, M. Wang, “A comprehensive assessment of refrigerants for cabin heating and cooling on electric vehicles,” Applied Thermal Engineering, vol. 174, 115258, 2020.
    [15] Z. Qi, “Performance improvement potentials of R1234yf mobile air conditioning system,” International Journal of Refrigeration, vol. 58, pp. 35–40, 2015.
    [16] ASHRAE, Designation and safety classification of refrigerants, ANSI/ASHRAE Standard 34, 2019.
    [17] IEC 60335-2-24, Safety of Domestic and Similar Electrical Appliances- Part 2-24: Particular Requirements for Refrigerators, Food-freezers and Icemakers, 2010.
    [18] IEC 60335-2-89, Safety of Domestic and Similar Electrical Appliances- Part 2-89: Particular Requirements for Commercial Refrigerating Appliances with an Incorporated or Remote Refrigerant Condensing Unit or Compressor, 2010.
    [19] R. Ciconkov, “Refrigerants: There is still no vision for sustainable solutions,” International Journal of Refrigeration, vol. 86, pp. 441–448, 2018.
    [20] IEC 60335-2-89, Domestic and Similar Electrical Appliances - Safety - Part 2-89: Particular Requirements for Commercial Refrigerating Appliances and Ice-Makers with an Incorporated or Remote Refrigerant Unit or Motor-Compressor, 2019.
    [21] G. Li, M. Eisele, H. Lee, Y. Hwang, R. Radermacher, “Experimental investiga- tion of energy and exergy performance of secondary loop automotive air-conditioning systems using low-GWP (global warming potential) refrigerants,” Energy vol 68, pp. 819–831, 2014.
    [22] D. Calleja-Anta, L. Nebot-Andrés, J. Catalán-Gil, D. Sánchez, R. Cabello, R. Llopis, “Thermodynamic screening of alternative refrigerants for R290 and R600a,” Results in Engineering, vol. 5, 100081, 2020.
    [23] K. Harby, “Hydrocarbons and their mixtures as alternatives to environmental unfriendly halogenated refrigerants: An updated overview: A Renew,” Renewable and Sustainable Energy Reviews, vol. 73, pp. 1247–1264, 2017.
    [24] H. Li, K. Tang, “A comprehensive study of drop-in alternative mixtures for R134a in a mobile air-conditioning system,” Applied Thermal Engineering, vol. 203, 117914, 2022.
    [25] S. Yadav, J. Liu, S.C. Kim, “A comprehensive study on 21st-century refrigerants - R290 and R1234yf: A review,” International Journal of Heat and Mass Transfer, vol. 182, 121947, 2022.
    [26] G. Hoffmann, W. Plehn, Natüurliche Kältemittel für Pkw-Klimaanlagen — Ein Beitrag zum Klimaschutz. Dessau, 2010.
    [27] Hychill, Minus 30, Retrieved from https://hychill.com.au/en/products/minus-30
    [28] CLEAR, Evaporative Cooling. Retrieved from https://www.new-learn.info/packages/clear/thermal/buildings/passive_system/evaporating_cooling.html
    [29] WIKIPEDIA, Evaporative cooler. Retrieved from https://en.wikipedia.org/wiki/Evaporative_cooler
    [30] A. K. Dhamneya, S. P. S. Rajput, A. Singh, “Theoretical performance analysis of window air conditioner combined with evaporative cooling for better indoor thermal comfort and energy saving,” Journal of Building Engineering, vol. 17, pp. 52–64, 2018.
    [31] W. H. Chen, H. E. Mo, T. P. Teng, “Performance improvement of a split air conditioner by using an energy saving device,” Energy and Buildings, vol. 174, pp. 380–387, 2018.
    [32] H. Yang, L. Rong, X. Liu, L. Liu, M. Fan, N. Pei, “Experimental research on spray evaporative cooling system applied to air-cooled chiller condenser,” Energy Reports, vol. 6, pp. 906–913, 2020.
    [33] C. Y. Lin, W. S. Lee, T. P. Teng, D. S. Lee, “Development and application of evaporative cooler for a freezer,” Applied Thermal Engineering, vol. 163, 115411, 2020.
    [34] B. Porumb, P. Ungureşan, L. F. Tutunaru, “A. Serban, M. Balan, A review of indirect evaporative cooling technology,” Energy Procedia, vol. 85, pp. 461–471, 2016.
    [35] 謝其霖, “蒸發冷卻模組應用於分離式空調機之開發與性能研究” ,國立臺灣師範大學工業教育學系碩士班,碩士論文,2020。
    [36] 鍾竣奇, “分離式空調機冷凝器蒸發冷卻模組之開發與應用研究” ,國立臺灣師範大學工業教育學系碩士班,碩士論文,2019。
    [37] Y. A. Horr, B. Tashtoush, N. Chilengwe, M. Musthafa, “Operational mode optimization of indirect evaporative cooling in hot climates,” Case Studies in Thermal Engineering, vol. 18, 100574, 2020.
    [38] NIST, NIST Reference Fluid Thermodynamic and Transport Properties Database: version 10.0, 2018.
    [39] CNS 7897-D3079: Chinese National Standard- Method of Test for Automobile Air Conditioners, National Bureau of Standards, Taiwan / 1981.
    [40] P. O. Sotomayor, J. A. R. Parise, “Characterization and simulation of an open piston compressor for application on automotive air-conditioning systems operating with R134a, R1234yf and R290,” International Journal of Refrigeration, vol. 61, pp. 100–116, 2016.
    [41] E. Navarro, J. M. Coberan, I. O. Martínez, J. Gonzalvez, “Comparative experimental study of an open piston compressor working with R-1234yf, R-134a and R-290,” International Journal of Refrigeration, vol. 36, pp. 768–775, 2013.
    [42] J.K. Vaghela, “Comparative evaluation of an automobile air-conditioning system using R134a and its alternative refrigerants,” Energy Procedia, vol. 109, pp. 153–160, 2017.
    [43] J. Sieres, J. M. Santos, “Experimental analysis of R1234yf as a drop-in replacement for R134a in a small power refrigerating system,” International Journal of Refrigeration, vol. 91, pp. 230–238, 2018.
    [44] Z. Li, H. Jiang, X. Chen, K. Liang, “Comparative study on energy efficiency of low GWP refrigerants in domestic refrigerators with capacity modulation,” Energy and Buildings, vol. 192, pp. 93–100, 2019.
    [45] A. Maiorino, R. Llopis, M.G.D. Duca, C. Aprea, “Environmental impact assessment of R-152a as a drop-in replacement of R-134a in a domestic refrigerator,” International Journal of Refrigeration, vol. 117, pp. 132–139, 2020.
    [46] J. Wu, G. Zhou, M. Wang, “A comprehensive assessment of refrigerants for cabin heating and cooling on electric vehicles,” Applied Thermal Engineering, vol. 174, 115258, 2020.
    [47] W. H. Chen, H. E. Mo and T. P. Teng, “Performance improvement of a split air conditioner by using an energy saving device,” Energy and Buildings, vol. 174, pp. 380-387, 2018.
    [48] W. Ketwong, T. Deethayat, T. Kiatsiriroat, “Performance enhancement of air conditioner in hot climate by condenser cooling with cool air generated by direct evaporative cooling,” Applied Thermal Engineering, vol. 26, 101127, 2021.
    [49] İ. Atmaca, A. Şenol, A. Çağlar, “Performance testing and optimization of a split-type air conditioner with evaporatively-cooled condenser,” Engineering Science and Technology an International Journal, vol. 32, 101064, 2022.
    [50] 許守平,冷凍空調原理與工程,全華圖書股份有限公司,2007。
    [51] Roy J. Dossat, Principles of Refrigeration. America, 2001.
    [52] 陳昱榮, “汽車空調系統使用HC-600a冷媒之性能評估” ,國立臺灣師範大學工業教育學系碩士班,碩士論文,2020。
    [53] ASHRAE, The 2017 ASHRAE Handbook –Fundamentals, 2017.
    [54] 游朝傑, “碳氫混合冷媒應用於冷凍系統之性能與最佳化研究” ,國立臺灣師範大學工業教育學系碩士班,碩士論文,2013。
    [55] J-26, switch of water level, Retrieved from http://www.light-energy.hipages.tw/?572,%20j-26
    [56] TRM-20, Retrieved from https://www.jetec.com.tw/chinese/product2-1_TRM20.html
    [57] CW121, Retrieved from https://www.tequipment.net/Yokogawa/CW121/Power-Loggers/
    [58] TTM-i4N, Retrieved from https://www.jetec.com.tw/chinese/product2-1_TTMi4N.html
    [59] testo 557, Retrieved from http://www.testotaiwan.com/product_detail.html?id=252
    [60] JPT-131, Retrieved from https://www.jetec.com.tw/chinese/product1-2_JPT131.html
    [61] ASHRAE, Psychrometric Analysis, Version: 7, ASHRAE, Inc., GA, USA, 2012.

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