Performance of alternative refrigerants for residential air-conditioning applications
Performance of alternative refrigerants for residential air-conditioning applications
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DOI：
10.1016/j.apenergy.2007.05.002
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发表时间：
2007-10
期刊：
影响因子：
11.2
通讯作者：
ki-jung park;T. Seo;D. Jung
中科院分区：
文献类型：
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作者：
ki-jung park;T. Seo;D. Jung
本研究测试了丙烯、丙烷、HFC152a、二甲醚组成的两种纯碳氢化合物和七种混合物替代HCFC22在住宅空调和热泵中的性能。试验前进行热力循环分析，确定最佳成分，并在面包板型实验室热泵/空调中进行实际试验，蒸发温度为7℃，冷凝温度为45℃。试验结果表明，该混合料的性能系数比HCFC22提高了5.7%。虽然丙烷的容量减少了11.5%，但大多数流体的容量与HCFC22相似。对于这些流体，压缩机排放温度降低了11-17°C。对于所有测试的液体，与HCFC22相比，电荷量减少了55%。总的来说，这些流体提供了良好的性能，合理的节能，没有任何环境问题，因此可以作为住宅空调和热泵应用的长期替代品。
In this study, performances of two pure hydrocarbons and seven mixtures composed of propylene, propane, HFC152a, and dimethylether were measured to substitute for HCFC22 in residential air-conditioners and heat pumps. Thermodynamic cycle analysis was carried out to determine the optimum compositions before testing and actual tests were performed in a breadboard-type laboratory heat pump/air-conditioner at the evaporation and condensation temperatures of 7 and 45°C, respectively. Test results show that the coefficient of performance of these mixtures is up to 5.7% higher than that of HCFC22. While propane showed a 11.5% reduction in capacity, most of the fluids had a similar capacity to that of HCFC22. For these fluids, compressor-discharge temperatures were reduced by 11–17°C. For all fluids tested, the amount of charge was reduced by up to 55% as compared to HCFC22. Overall, these fluids provide good performances with reasonable energy-savings without any environmental problem and thus can be used as long-term alternatives for residential air-conditioning and heat-pumping applications.