乳化燃料の蒸発と燃焼 : ミクロ爆発の発生に対する燃料体積および含水率の影響

概要

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An experimental study has been conducted on the effect of fuel volume and water content on the onset probability of microexplosion of emulsified fuels. Water in fuel and fuel in water emulsions were consisted of n-dodecane, silicone oil and water doped with small amount of surfactants. Test emulsions contained in Pyrex glass capillaries after degasification were immersed in an oil bath. The waiting time for the onset of microexplosion was measured at 433 K under atmospheric pressure for fuel volume ranging from 1×10^<-8> m^3 to 10×10^<-8> m^3 and water content from l0% to 60%. The weakest link destruction model was adopted for predicting the distributions of the waiting time. It was confirmed that the waiting time at constant temperature was correlated with the Weibull distribution and that the shape parameter was unity. The results showed that the mean waiting time for microexplosion was inversely related to the fuel volume and the water content. A new empirical equation was proposed for the mean waiting time of the onset of microexplosion including the effect of fuel volume and water content.
一般社団法人日本機械学会の論文
1993-04-25