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Experimental Study on Micro-Explosion and Evaporation Characteristics of Jatropha Oil Droplets
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Jigang Wang1, Feifei Xiang1, Jing Xu1, Xinqi Qiao2
Transactions of CSICE | 2024, 42(1) : 44 - 52
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Transactions of CSICE | 2024, 42(1): 44-52
Experimental Study on Micro-Explosion and Evaporation Characteristics of Jatropha Oil Droplets
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Jigang Wang1, Feifei Xiang1, Jing Xu1, Xinqi Qiao2
Affiliations
  • 1.School of Mechanical Engineering，Yangzhou University，Yangzhou 225127，China
  • 2.Key Laboratory of Power Machinery and Engineering，Ministry of Education，Shanghai Jiao Tong University，Shanghai 200240，China
doi: 10.16236/j.cnki.nrjxb.202401006
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The evaporation and micro-explosion characteristics of jatropha oil droplets under high temperature environment(673，773，873，973 and 1073K)were carried out using high-speed backlit imaging technique. The droplet evaporation characteristics of three main components of jatropha oil were analyzed separately. The results show that the micro-explosion of jatropha oil droplets is caused by the pyrolysis of internal components，and the micro-explosion intensity increases with the increase of ambient temperature. At 673K，the jatropha oil droplets undergo stable evaporation，which includes three stages of initial expansion，equilibrium evaporation and residue evaporation. At 773—1073K，the droplet undergoes micro-explosion，which includes four stages of initial expansion，equilibrium evaporation，micro-explosion evaporation and residual evaporation. When the ambient temperature is higher than 873K，the phenomenon of "vapor plume" and "vapor cloud" is observed for the first time，and the droplet evaporation rate significantly increases.

jatropha oil  /  droplet  /  micro-explosion  /  evaporation  /  mechanism
王继刚, 相飞飞, 徐晶, 乔信起. 麻疯树油液滴微爆和蒸发特性试验. 内燃机学报, 2024 , 42 (1) : 44 -52 . DOI: 10.16236/j.cnki.nrjxb.202401006
Jigang Wang, Feifei Xiang, Jing Xu, Xinqi Qiao. Experimental Study on Micro-Explosion and Evaporation Characteristics of Jatropha Oil Droplets[J]. Transactions of CSICE, 2024 , 42 (1) : 44 -52 . DOI: 10.16236/j.cnki.nrjxb.202401006
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Year 2024 volume 42 Issue 1
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Article Info
doi: 10.16236/j.cnki.nrjxb.202401006
  • Receive Date：2023-06-09
  • Online Date：2025-12-11
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  • Received：2023-06-09
  • Revised：2023-10-16
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    1.School of Mechanical Engineering，Yangzhou University，Yangzhou 225127，China
    2.Key Laboratory of Power Machinery and Engineering，Ministry of Education，Shanghai Jiao Tong University，Shanghai 200240，China
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表12种不同金属材料的力学参数
科
Family		 属数
Number of
genus		 种数
Number of
species		 占总种数比例
Percentage of
total species (%)		 属
Genus		 种数
Number of
species		 占总种数比例
Percentage of total
species (%)
鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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