柴油-麻风树生物柴油混合燃油的微爆特性研究

doi:10.3969/j.issn.1673-5854.2024.01.005

Abstract

Abstract:

In order to explore the evaporation process and mechanism of diesel-Jatropha biodiesel hybrid fuel and achieve the purpose of mixing biodiesel and diesel for stable combustion in diesel engine cylinders, Jatropha biodiesel and diesel were mixed at ambient temperatures of 723 and 873 K, and the proportion of Jatropha biodiesel was 10%, 20% and 50%, respectively. The micro-explosion characteristics of diesel-Jatropha biodiesel hybrid fuel(JME10, JME20, JME50) were analyzed using thermocouple hanging drop technology, high-speed camera and Halcon software code processes droplet images. It was concluded that the diesel-Jatropha biodiesel with different mixing ratios and the droplet microburst intensity had a function relationship similar to parabola, and JME20 was the best mixing ratio. In this case, the increase or decrease of the mixing ratio would affect the droplet microburst effect, and the droplet microburst under this ratio had a minimum microburst delay time, which was conducive to the full mixing of fuel and air. The increase of ambient temperature can promote the improvement of fuel droplet microburst quality of JME10, JME20 and JME50, and can shorten the evaporation time.

Key words: leprosy tree oil, diesel, microburst, mlkaline lipid method

CLC Number:

TQ35
TK4

Xuan ZHANG, Genzhu JIANG. Simulation Investigation of Turbulent Flow Characteristics in Constant Volume Combustion Bomb[J]. Biomass Chemical Engineering, 2024, 58(1): 35-40.

Figures/Tables 6

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References 20

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燃料 fuel	密度/(kg·m^-3) density	黏度/(Pa·s) viscosity	十六烷值(CN) cetane number	热值/(MJ· kg^-1) heat value	沸点/K boiling point	闪点/℃ flashing point
柴油 diesel	840	4.37	53.1	45.3	453~613	50
麻风树生物柴油(JME)	880	5.60	50.0	41.6	593~713	170

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Simulation Investigation of Turbulent Flow Characteristics in Constant Volume Combustion Bomb

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