| 摘要: |
| R32由于具有ODP为零、GWP值小于R410A等优越的环境性能,逐渐被认识到可以用于替代R410A。这里对R410A和R32的循环性能、润滑油的选用、可燃性、充注量、换热器性能等相关问题进行了综述。大量研究表明,与R410A系统相比,R32系统的压缩机耗功略高,制冷量较高,同时排气温度也高出很多,具有极大的替代R410A的潜力。然而，相关研究也指出要使其能够在大范围推广使用，除了要有效解决排气温度过高的问题之外，还需要解决其微可燃性在设计应用中所受到的限制。通过解读国内外法规政策发现，国内外对R32的充注量限制有放宽的趋势，这对R32在常规空调热泵系统中替代R410A和R22的研究工作将是一个巨大的推动。 |
| 关键词: 制冷剂替代 空调 热泵 R410A R32 |
| DOI： |
| 投稿时间：2013-01-31
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| 基金项目: |
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| Review of the Application of R32 on Air Conditioners and Heat Pump Systems |
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Yang Shenyin1, Wang Qin1, Tang Liming1, Xu Xiangguo1, Chen Guangming1, Yao Yuping2, Wang Fei2
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| (1.Zhejiang University;2.Samsung Electronics Korea(Su Zhou)) |
| Abstract: |
| R32 has a number of advantages compared to R410A, such as zero ODP and less GWP value. It is now regarded as a possible substitute refrigerant for R410a. This paper presents a comprehensive review of the application of R32 on air conditioners and heat pumps by comparing both operational performances, such as the system efficiency and the requirement of refrigerant charge, between systems using R32 and R410a, and physical characteristics, such as lubrication oil preference and flammability, between both refrigerants. The comparison indicates although systems using R32 have slightly higher energy consumption and discharge temperature of compressor, it has much larger cooling capacity than that using R410a. Hence, R32 is ideal to replace R410A. However, there are still limitations for spreading the application of R32, such as the possible deterioration of system performance caused by a high compressor discharge temperature and the restriction on the refrigerant charge amount due to the A2L level flammability of R32. Nonetheless, domestic and international legislations tend to set less restriction for the application of R32. This tendency will certainly promote researches on using R32 to replace R410A in domestic air conditioner and heat pump systems. |
| Key words: refrigerant substitution air conditioner heat pump R410A R32 |
