R-32替代R-410A之冷氣機節能效益研究

Study of Energy Conservation on Air-Conditioners Using R-32 Instead of R-410A

鄭坤明(Kun-Ming Cheng)

指導教授 ： 李文興

共同指導教授 ： 卓清松

國立臺北科技大學/機電學院/能源與冷凍空調工程系碩士班/碩士(2014年)

https://doi.org/10.6841/NTUT.2014.00704

摘要

本實驗研究之目的是討論R-32替代R-410A之冷氣機節能效益研究，R-410A與R-32的物理性質非常接近，將市面上R-410A冷媒的變頻分離式冷氣及水冷式箱型冷氣，在原本R-410A系統中進行冷媒性能測試後再以R-32冷媒進行性能測試，然後個別比較這兩種冷媒系統間的性能差異分析。在本論文的實驗結果中得到，在變頻分離式冷氣和水冷式箱型冷氣之冷媒系統中，R-410A與R-32的過熱度兩者相當接近。在市面上販售的R-410A變頻分離式冷氣機對R-32與R-410A的冷媒進行對比測試，可以得到的EER分別為3.69與3.49，且R-32的製冷能力也高於R-410A的製冷能力。而在水冷式箱型冷氣對R-32與R-410A的冷媒進行對比測試，可以得到的EER分別為4.78與4.49，且R-32的製冷能力也高於R-410A的製冷能力。綜合上述各項性能參數，在R-32冷媒直接替代R-410A應用時，其EER和製冷能力都有一定的增加，而冷媒系統的運轉壓力變化並不大，故將R-410A機組直接替代R-32冷媒運行時，其系統的製冷能力和EER，就技術性能而言是具有直接替代應用的可行性。

關鍵字

R-32 ； R-410A ； 冷媒替代 ； 變頻分離式冷氣 ； 水冷式箱型冷氣

並列摘要

The purpose of this study is to discuss the study of energy conservation on air-conditioners using R-32 instead of R-410A, R-410A and R-32 have very similar physical properties. To obtain both inverter split air conditioner and water cooled packaged air conditioner at the same time in the consumer market，those two appliances were initially tested for refrigerant performance with original R-410A refrigerant system，and then tested with the alternative refrigerant R-32. Subsequently, analysis was performed to compare the differences in performances between those two types of refrigerant systems. As shown by the experiment results in this paper, in the refrigerant system of an inverter split air conditioner and water cooled packaged air conditioner, R-410A and R-32 have very close degrees of superheat. A comparison test on R-32 and R-410A in a commercially available R-410A inverter split air conditioner reveals that both have an EER of 3.69 and 3.49, respectively; R-32 has a refrigeration capacity, higher than that of R-410A. The other comparison test on R-32 and R-410A in a water cooled packaged air conditioner demonstrates that both have an EER of 4.78 and 4.49, respectively; R-32 has a refrigeration capacity, higher than that of R-410A. The aforementioned performance parameters in aggregate prove that the refrigerant R-32 as an alternative for R-410A exhibits discernable improvement in both EER and refrigeration capacity with little change in the operating pressure of the refrigerant system. Therefore, using the R-410 unit as an alternative for the refrigerant R-32 is viable from the perspective of technical performance in terms of system refrigeration capacity and EER.

並列關鍵字

R-32 ； R-410A ； alternative refrigerant ； inverter split air conditioner ； water cooled packaged air conditioner

參考文獻

9. Xu Shuxue, Ma Guoyuan, “Experiment study of an enhanced vapor injection refrigeration / heat pump system using R32,” International Journal of Thermal Sciences Volume 68, June 2013, Pages 103–109.

10. Xing Xu, Yunho Hwang, “Performance comparison of R410A and R32 in vapor

11. Ho-Saeng Lee, Hyeon-Ju Kim, “Thermodynamic performance of R32/R152a mixture for water source heat pumps,” Energy Volume 40, Issue 1, April 2012, Pages 100–106.

12. Chieko Kondou, Daisuke BaBa, “Flow boiling of non-azeotropic mixture R32/R1234ze(E) in horizontal microfin tubes,” International Journal of Refrigeration Volume 36, Issue 8, December 2013, Pages 2366–2378.

13. Jianyong Chen, Jianlin Yu, “Performance of a new refrigeration cycle using refrigerant mixture R32/R134a for residential air-conditioner applications,” Energy and Buildings Volume 40, Issue 11, 2008, Pages 2022–2027.