Utilizing preferential vaporization to enhance the stability of spray combustion for high water content fuels

摘要: Abstract In a previous study on the stability of spray combustion for mixtures alcohols (ethanol or 1-propanol) and water, feasibility burning fuels heavily diluted with water was demonstrated. that it found preferential vaporization in can significantly enhance flame stability. Due to their high volatility activity coefficient aqueous solution, quickly evaporate from droplets generate concentrated fuel vapor at base jet. Therefore, be ignited stabilize even though content is quite (up 90 wt%) (Yi Axelbaum, 2013). this study, we develop procedure selecting chemical showing strong water. t-Butanol identified as an excellent candidate based its physical properties, including coefficient, pressure, heat combustion. Flame evaluated solutions both ethanol t-butanol using burner where extent swirl adjustable. Under low intensity, better than ethanol. The characteristic time release droplet modeled t-butanol. 99% over 70% shorter compared ethanol, which supports improved observed experiments.