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当前位置: 首页 > 文章 > 喷油温度对生物柴油雾化特性的影响研究 农业机械学报 2013,44 (7) 33-38
Position: Home > Articles > Influence of Injection Temperature on Atomization Characteristics of Biodiesel Transactions of the Chinese Society for Agricultural Machinery 2013,44 (7) 33-38

喷油温度对生物柴油雾化特性的影响研究

作  者：
石复习;陈军
单  位：
西北农林科技大学机械与电子工程学院
关键词：
生物柴油;喷油温度;雾化特性
摘  要：
为准确了解生物柴油温度对雾化效果的影响规律,通过自制高响应温度传感器,测试了大豆脂肪酸甲酯(SFAME)在S195型发动机额定工况下盛油槽温度的变化;在共轨喷油系统上模拟发动机工作时的喷油温度,使用马尔文粒径测试仪,测取了不同喷油温度下雾滴粒径分布的变化情况。结果表明:S195型发动机在稳定的额定工况下,喷油温度在喷油始点为281℃,喷油过程中呈下降趋势;通过控制供油管路上的加热装置,提高喷油温度可使雾滴的索特平均直径(SMD)减小,但随着喷油温度升高雾滴直径的减小趋势减缓;预热喷油器前的生物柴油,能提高喷雾过程后期的喷油温度,有利于改善雾化效果。
译  名：
Influence of Injection Temperature on Atomization Characteristics of Biodiesel
作  者：
Shi Fuxi Chen Jun(College of Mechanical and Electronic Engineering,Northwest A&F University,Yangling,Shaanxi 712100,China)
关键词：
Biodisel Injection temperature Atomization characteristics
摘  要：
In order to analyze the influence law of injection temperature on biodiesel atomization effect accurately,using self-designed high response thermocouple,the filled trough temperature variation of the soybean fatty acid methyl ester(SFAME) were measured under the rated conditions of S195 engine.In the common rail fuel injection system,the injection temperature under engine working condition was simulated.With the Malvin particle measuring instrument,the variation of droplet diameter distribution was measured under different injection temperatures.The experimental results showed that the injection temperature was 281℃ at fuel injection beginning under the stable rated conditions of S195 engine,and presented a downtrend during the injection duration.With the control of heating device of oil supply line,the Sauter mean diameter(SMD) could be decreased by increasing the injection temperature,but increase trend of SMD was slow down with the increasing injection temperature.The preheating of biodiesel before injector will increase injection temperature in the spray process later and improve the atomization effect.

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