Combustion characteristics of crude jatropha oil droplets using rhodium liquid as a homogeneous combustion catalyst

International Conference on Chemistry and Material Science 2017

化学;材料科学

Nanlohy, Hendry Y.^1,2 ; Wardana, I.N.G.^2 ; Hamidi, N.^2 ; Yuliati, L.^2

Department of Mechanical Engineering, University of Science and Technology, Jayapura

99351, Indonesia^1

Department of Mechanical Engineering, Brawijaya University, East Java, Malang

65145, Indonesia^2

关键词: Combustion characteristics;    Different stages;    Flash points;    Homogeneous combustion;    Ignition timing;    Jatropha oil;    Oil droplets;    Thermal cracking;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/299/1/012090/pdf
DOI  :  10.1088/1757-899X/299/1/012090

学科分类：材料科学（综合）

来源: IOP

【 摘 要 】

Combustion characteristics of crude jatropha oil droplet at room temperature with and without catalyst have been studied experimentally. Its combustion characteristics have been observed by igniting the oil droplet on a junction of a thermocouple, and the combustion characteristics of oil droplets are observed using a high-speed camera. The results show that the uniqueness of crude jatropha oil as alternative fuel is evidenced by the different stages of combustion caused by thermal cracking in burning droplets. The results also show that the role of the catalyst is not only an accelerator agent, but there are other unique functions and roles as a stabilizer. Moreover, the results also found that the catalyst was able to shorten the ignition timing and burnout time. This phenomenon proves that the presence of catalysts alters and weakens the structure of the triglyceride geometry so that the viscosity and flash point is reduced, the fuel absorbs heat well and flammable.