Explosion characteristics of chlorodifluoromethane and isobutane at high temperature and pressure using a 20-L apparatus

作者: Yun-Ting Tsai , Jian-Yao Liao , Chi-Min Shu

DOI: 10.1016/J.IJREFRIG.2018.08.022

关键词: ChlorodifluoromethaneBar (unit)ThermodynamicsIsobutaneMaterials scienceFlammable liquidRefrigerantPressure rangeTemperature and pressure

摘要: Abstract At normal pressure, the refrigerant R-22 (chlorodifluoromethane) does not exhibit explosion behaviour at 30.0, 60.0, 90.0, and 120.0 °C in a 20-L apparatus. However, an increase pressure to 10.0 bar room temperature caused (lower limit, 16.4 vol%), maximum occurred concentration of 40 vol% bar. Thus, can change from being non-flammable flammable with pressure. The limit R-600a (isobutane) be changed by increasing temperature, thereby risk. Experimental studies have revealed that is 1.5–9.0 vol% temperature. This consistent specified previously predicted here, demonstrating experimental data are reliable. study provides useful information for safer design involving high

参考文章(23)
Daniel A. Crowl, Joseph F. Louvar, Chemical Process Safety: Fundamentals with Applications ,(2001)
M. G. Zabetakis, Flammability characteristics of combustible gases and vapors U.S. Dept. of the Interior , For sale by the Supt. of Doc., U.S. G.P.O.. ,(1965) , 10.2172/7328370
Horng-Jang Liaw, Chan-Cheng Chen, Chih-Heng Chang, Nung-Kai Lin, Chi-Min Shu, Model To Estimate the Flammability Limits of Fuel–Air–Diluent Mixtures Tested in a Constant Pressure Vessel Industrial & Engineering Chemistry Research. ,vol. 51, pp. 2747- 2761 ,(2012) , 10.1021/IE2011824
Shigeo Kondo, Kenji Takizawa, Akifumi Takahashi, Kazuaki Tokuhashi, Extended Le Chatelier's formula for carbon dioxide dilution effect on flammability limits. Journal of Hazardous Materials. ,vol. 138, pp. 1- 8 ,(2006) , 10.1016/J.JHAZMAT.2006.05.035
Chan-Cheng Chen, Horng-Jang Liaw, Tzu-Chi Wang, Chin-Yu Lin, Carbon dioxide dilution effect on flammability limits for hydrocarbons. Journal of Hazardous Materials. ,vol. 163, pp. 795- 803 ,(2009) , 10.1016/J.JHAZMAT.2008.07.051
R.L. Yun, T.J. Wan, C.H. Lin, Y.M. Chang, C.M. Shu, Fire and explosion characteristics of 3-methyl pyridine at 270°c with high oxygen concentrations Process Safety and Environmental Protection. ,vol. 85, pp. 251- 255 ,(2007) , 10.1205/PSEP06055
Shigeo Kondo, Kenji Takizawa, Akifumi Takahashi, Kazuaki Tokuhashi, Extended Le Chatelier's formula and nitrogen dilution effect on the flammability limits Fire Safety Journal. ,vol. 41, pp. 406- 417 ,(2006) , 10.1016/J.FIRESAF.2006.03.002
Jiangtao Wu, Yingjie Chu, Jing Hu, Zhigang Liu, Performance of mixture refrigerant R152a/R125/R32 in domestic air-conditioner International Journal of Refrigeration-revue Internationale Du Froid. ,vol. 32, pp. 1049- 1057 ,(2009) , 10.1016/J.IJREFRIG.2008.10.009
Wang Zhang, Zhao Yang, Jin Li, Chang-xing Ren, Dong Lv, Jie Wang, Xin Zhang, Wei Wu, Research on the flammability hazards of an air conditioner using refrigerant R-290 International Journal of Refrigeration-revue Internationale Du Froid. ,vol. 36, pp. 1483- 1494 ,(2013) , 10.1016/J.IJREFRIG.2013.03.015
Chan-Cheng Chen, Tzu-Chi Wang, Horng-Jang Liaw, Hui-Chu Chen, Nitrogen dilution effect on the flammability limits for hydrocarbons Journal of Hazardous Materials. ,vol. 166, pp. 880- 890 ,(2009) , 10.1016/J.JHAZMAT.2008.11.093