| 摘要: |
| 2010年6月以来,德国联邦材料研究与测试所(BAM)声称R1234yf暴露于点火源后会生成有毒HF气体,危害人身健康。2010年末国内也有对R32表达同样疑虑的反映。为此,从化学反应动力学原理、从生成有毒气体的种类及其允许暴露极限、并参考SAE研究成果等几方面,对BAM报告进行了探讨和分析,得出了一些看法,其中特别是从它们试验结果发现,在相同背景下凡是R1234yf导致生成HF浓度超标的,R134a也超标,这就说明了这个问题不足以构成它们应用的障碍;并有理由认为:即使在极端恶劣条件下,R32的HF和可燃风险概率也将分别小于或等于R1234yf(R134a)的10-12和10-14量级,处于极低的风险水平。 |
| 关键词: 工程热物理 制冷工质 燃烧 生成有毒气体 R32 R1234yf R134a |
| DOI：10.3969/j.issn.0253-4339.年份（4位数字）.月份（2位数字）.文章的起始页码（3位数字） |
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| 基金项目: |
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| Study on Ignition and Generation of Toxic Gases from Refrigerants |
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Zhu Mingshan Shi Lin
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| (Zhu Mingshan Shi Lin(Key Laboratory for Thermal Science and Power Engineering of Ministry of Education,Tsinghua University,Beijing 100084,China)) |
| Abstract: |
| The final test report for ignition behavior of R1234yf was published by BAM,Germany in June of 2010.It pointed out that HF exposures from thermal decomposition or combustion of R1234yf would be likely to results in personal injury.At the end of the year,there was also a concern on the R32 in China.Hence,these issues are analyzed based on chemical reaction kinetics,toxic gas exposure limit allowed,and with reference to SAE results.It is found that when R1234yf leads to the generation of excessive concentrati... |
| Key words: Engineering thermophysics Refrigerant Ignition Generation of toxic gases R32 R1234yf R134a |
