Indoor leakage test for safety of R-290 split type room air conditioner
Indoor leakage test for safety of R-290 split type room air conditioner
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DOI：
10.1016/j.ijrefrig.2013.11.023
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发表时间：
2014-04
期刊：
影响因子：
--
通讯作者：
Tingxun Li
中科院分区：
文献类型：
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作者：
Tingxun Li
近年来，房间空调（RAC）行业替代制冷剂的选择一直是一个重大挑战。根据文献，可燃制冷剂可能是潜在的选择之一。特别是，R-290（丙烷）由于其环境和独特的热物理性质，很有可能成为下一代RAC的工作流体。然而，其使用受到其易燃性和由此产生的安全问题的阻碍。在本文中，使用R-290的安全性影响进行了检查，通过评估某些变量的影响泄漏到一个房间的制冷剂的浓度。在不同情景下进行了R-290泄漏实验，并测量了其在室内的分布。根据RAC安全标准的要求对结果进行了解释，发现壁式RAC的要求可能需要更详细的验证。
The selection of alternative refrigerants for the room air conditioner (RAC) industry has, in recent years, been a significant challenge. According to the literature, flammable refrigerants may be one of the potential options. In particular, R-290 (propane) has a major possibility to be the chosen working fluid for the next generation of RACs because of its environmental and unique thermo-physical properties. However, its use is hindered by its flammability and the resulting concerns on safety. In this paper, the safety implications of using R-290 are examined through evaluating the effects of certain variables upon the concentrations of leaked refrigerant into a room. R-290 is leaked under different scenarios and its distributions inside room are measured. The results are interpreted with respect to the requirements of RAC safety standards, where it is found that the requirements may need more detailed verifying for wall type RAC.