Flammability limits of binary mixtures of dimethyl ether with five diluent gases |
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| Institution: | 1. State Key Laboratory of Multiphase Flow in Power Engineering, Xi’an Jiaotong University, Xi’an 710049, China;2. Key Laboratory of Cryogenics, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, China;3. University of Chinese Academy of Sciences, Beijing 100039, China;1. Department of Mechanical Engineering, Federal University of Rio Grande do Sul (UFRGS), R. Sarmento Leite 425, Porto Alegre, RS, CEP 90050-170, Brazil;2. Federal University of Itajubá, UNIFEI, Mechanical Engineering Institute, IEM, Av BPS 1303, Itajubá, MG, CEP 37500903, Brazil;3. São Paulo University (UNESP), School of Engineering, Energy Department, Guaratinguetá, Av. Ariberto P. da Cunha, 333, Guaratinguetá, SP, CEP 12510410, Brazil;1. Key Laboratory of Efficient Utilization of Low and Medium Grade Energy, MOE, School of Mechanical Engineering, Tianjin University, 92 Weijin Road, Tianjin, 300072, PR China;2. State Key Laboratory of Engines, Tianjin University, Tianjin, 300072, PR China |
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| Abstract: | Flammability limits of binary mixtures of dimethyl ether with five kinds of diluent gases were measured by ASHRAE method at room temperature. The five diluent gases are nitrogen, carbon dioxide, chlorodifluoromethane (HCFC-22), 1,1,1,2-tetrafluoroethane (HFC-134a) and 1,1,1,2,3,3,3-heptafluoropropane (HFC-227ea). The experimental results were correlated with the extended Le Chatelier's formula. It was found that the experimental results were well reproduced by the formula. In addition, flammability limits of binary mixtures of dimethyl ether with nitrogen and carbon dioxide were compared with the estimated values based on the adiabatic flame temperature method. The experimental results were found to be in satisfactory agreement with the estimated values. |
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| Keywords: | Flammability limits Dimethyl ether Refrigerant |
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