Solubility of a diesel-biodiesel-ethanol blend, its fuel properties, and its emission characteristics from diesel engine
Solubility of a diesel-biodiesel-ethanol blend, its fuel properties, and its emission characteristics from diesel engine
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DOI：
10.1016/j.fuel.2006.09.034
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发表时间：
2007-05-01
期刊：
影响因子：
7.4
通讯作者：
Jai-In, Samai
中科院分区：
文献类型：
--
作者：
Kwanchareon, Prommes;Luengnaruemitchai, Apanee;Jai-In, Samai
在本工作中，我们研究了柴油-生物柴油-乙醇混合物在不同乙醇纯度和不同温度下的相图。测试了所选混合燃料的密度、燃烧热、十六烷值、闪点和倾点等燃料性质及其在柴油机上的排放性能，并与基础柴油进行了比较。结果表明，燃料性质接近柴油的标准限值，但含乙醇混合燃料的闪点与常规柴油的闪点有较大差异。生物柴油的高十六烷值可以弥补乙醇的存在导致的十六烷值的降低。乙醇含量低于10%的混合燃料的热值与柴油的热值没有显著差异。对于混合燃料的排放，与柴油相比，在高负荷时，CO和HC显著降低，而NO增加。考虑到这些因素，80%的柴油、15%的生物柴油和5%的乙醇的混合物是生产柴油醇的最合适的比例，因为燃料的性质(闪点除外)是可以接受的，并且可以减少排放。(C)2006爱思唯尔有限公司。保留所有权利。
In this work, we studied the phase diagram of diesel-biodiesel-ethanol blends at different purities of ethanol and different temperatures. Fuel properties (such as density, heat of combustion, cetane number, flash point and pour point) of the selected blends and their emissions performance in a diesel engine were examined and compared to those of base diesel. It was found that the fuel properties were close to the standard limit for diesel fuel; however, the flash point of blends containing ethanol was quite different from that of conventional diesel. The high cetane value of biodiesel could compensate for the decrease of the cetane number of the blends caused by the presence of ethanol. The heating value of the blends containing lower than 10% ethanol was not significantly different from that of diesel. As for the emissions of the blends, it was found that CO and HC reduced significantly at high engine load, whereas NO, increased, when compared to those of diesel. Taking these facts into account, a blend of 80% diesel, 15% biodiesel and 5% ethanol was the most suitable ratio for diesohol production because of the acceptable fuel properties (except flash point) and the reduction of emissions. (c) 2006 Elsevier Ltd. All rights reserved.