Optical Investigation on Diesel Engine Fuelled by Vegetable Oils

Optical Investigation on Diesel Engine Fuelled by Vegetable Oils
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植物油柴油机的光学研究

DOI:
10.1016/j.egypro.2014.11.939
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发表时间:
2014
期刊:
Energy Procedia
影响因子:
--
通讯作者:
Bohl T
Bohl T
中科院分区:
--
文献类型:
--
作者:
Bohl T

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本文采用缸内压力燃烧分析和高速双色法研究了不同纯植物油在直喷式柴油机上的燃烧特性和碳烟生成。一台单缸柴油机采用电控共轨燃油喷射系统。在120 MPa喷射压力和60 ° C和90 °C燃油温度条件下,对四种不同的植物油(麻风树油、巴豆油、菜籽油和向日葵油)进行了试验。所有的测试都是在固定的喷射正时和固定的发动机转速在1200转/分钟与先导和主inject. Laboratory结果表明,虽然所有四个生物油有非常相似的物理化学性质,在他们的燃烧和碳烟生成行为的一些差异已被观察到。结果表明,向日葵籽油(SFO)在较低温度下具有良好的燃烧性能。虽然巴豆油(CO)在任何条件下都没有突出的燃烧行为,但麻风树油(JO)的燃烧在较高的燃料喷射温度下得到改善。
In the present paper the combustion behaviour and soot generation of different neat vegetable oils on a direct injection optical diesel engine have been investigated using in-cylinder pressure based combustion analysis and high-speed two colour method. A single-cylinder optical diesel engine with an electronically controlled common-rail fuel injection system has been used for this study. Four different vegetable oils, Jatropha, Croton, Rapeseed and Sunflower oil, have been tested at 120 MPa injection pressure and fuel temperatures of 60 and 90 °C. All tests were performed at fixed injection timings and fixed engine speed at 1200 rev/min with pilot and main injection.The experimental results show that although all four bio-oils have very similar physiochemical properties, some differences in their combustion and soot generation behaviour have been observed. It was concluded that sunflower oil (SFO) had very good combustion properties at lower temperatures compared to other fuels. While croton oil (CO) did not have outstanding combustion behaviour at any conditions, the combustion of Jatropha oil (JO) was improved at higher fuel injection temperatures.
柴油机高湍流两级燃烧对烟度和氮氧化物的缸内控制
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