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Analysis of Non-Evaporating Spray Characteristics from Jatropha Methyl Ester and its Blends
( Annisa Bhikuning ),( Naoki Matsumoto ),( Tomoyuki Mukayama ),( Eriko Matsumura ),( Jiro Senda ) 한국액체미립화학회 2017 한국액체미립화학회 학술강연회 논문집 Vol.2017 No.-
Biodiesel or Methyl ester is an alternative fuel that is produced from edible and non-edible vegetable oils. Jatropha is one of the promising fuels that can be substitute from diesel fuel in the future. Jatropha methyl ester is produced from non-edible vegetable oil (Jatropha tree). Therefore, Jatropha methyl ester can be acceptable to replace the diesel fuel without make any disturb for the food market in the world. Jatropha trees can be found and easily grown in tropical regions in the world such as Indonesia, Malaysia and India. Tridecane (C13H28) is an alkane hydrocarbon. It is colorless and combustible. The blending of Jatropha methyl ester with tridecane would make change the chemical properties of Jatropha itself. Study in non-evaporating spray characteristics is important in order to understand the spray behavior for biodiesel and its blends. In this paper, Jatropha methyl ester is blended with tridecane in composition of 25% (Jatropha Methyl Ester 25% and tridecane 75%), 50% (Jatropha Methyl Ester 50% and tridecane 50%) and 75% (Jatropha Methyl Ester 75% and tridecane 25%). Non evaporating spray characteristics for diesel sprays provides parameter such as spray tip penetration, spray cone angle and droplet size. However, before spray estimation are led, the conditions inside the vessel are in good condition. In this study, the ambient pressure was 2 MPa and the injection pressures were 50,100 and 150 MPa. The spray tip penetration length is analyzed by using high speed camera and some properties of Jatropha methyl ester blends were analyzed. It is shown that, the correlation between the surface tension, viscosity and density with longer or narrower of spray tip penetration and cone angle can be summarized. Furthermore, the correlations between the blending of Jatropha Methyl Ester and tridecane composition is also affected to the spray tip penetration and cone angle.
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