FLMMABILITY OF BINARY MIXTURES OF DIMETHYL ETHER WITH SEVERAL INERT COMPONENTS
As a refrigerant, dimethyl ether is extraordinary friendly to environment for a zero ODP and GWP. However, wide use of dimethyl ether is held back by its flammability. Flammability limit is one of the most important parameters for expressing the fire and explosion hazards of combustible gases. The experimental system used in the present study follows that of ASHRAE method which is the revised version of ASTM-E681.The explosion vessel is a 12-L spherical glass flask. The experimental results are determined by visual observation. The absolute deviation of the gas mixture ratio is less than 0.5％. Inert gas dilution is an important technique to ensure safety in handling combustible gases. Experimental study of the inert effect on flammability limits of dimethyl ether was carried out. The inert components consist of HFC134a，HFC227ea，HFC125，HCFC22, nitrogen and carbon dioxide. The flammability ranges of binary mixtures were illustrated, and their inert effects compared. The test results are of great value for the application of dimethyl ether as a green refrigerant.
flammability limit dimethyl ether inert effect, ASTM E681
Ke Zhang Jiangtao Wu Hui Gao
State Key Laboratory of Multiphase Flow in Power Engineering Xi’an Jiaotong University Xi’an, Shannxi, China, 710049
国际会议
The Ninth Asian Thermophysical Properties Conference(第九届亚洲热物理性能会议 ATPC 2010)
北京
英文
676-680
2010-10-19（万方平台首次上网日期，不代表论文的发表时间）