The main challenge of utilizing ethanol in diesel engines in blending mode is the phase separation issue. Therefore, an attempt has been performed to enhance the stability feature of ethanol/Jatropha biodiesel (JME) blends by using n-butanol as co-solvent. The 10% by volume of n-butanol is added to the mixtures of 10% and 20% ethanol and 70% and 80% JME, which is denoted as JME10Bu10E and JME10Bu20E, respectively. The phase stability of the evaluated fuels is examined employing visual approach and Thermogravimetric analysis. These methods confirm that there is no phase separation for more than 2 months under ambient conditions. Then, the combustion and emission features are investigated utilizing a diesel engine run with different loads and constant speed. The findings demonstrate that the p_max. and HRR are increased by adding ethanol. The ignition delay is extended with the addition of ethanol while the combustion period is almost the same. The bsfc is decreased by adding ethanol compared to JME fuel. The CO, UHC, and NO_x formations are reduced markedly by 40%, 40%, and 40%, respectively, with adding ethanol. Finally, using n-butanol and JME as co-solvents with ethanol supports the growth of renewable energy in the CI engine.

在混合模式下在柴油发动机中使用乙醇的主要挑战是相分离问题。因此，已经尝试通过使用正丁醇作为助溶剂来增强乙醇/麻风树属生物柴油（JME）共混物的稳定性。将按体积计10％的正丁醇添加到10％和20％的乙醇与70％和80％的JME的混合物中，分别表示为JME10Bu10E和JME10Bu20E。采用目测方法和热重分析法检查所评估燃料的相稳定性。这些方法证实在环境条件下超过2个月没有相分离。然后，利用在不同负载和恒定速度下运行的柴油机研究燃烧和排放特征。该发现表明p _max。加入乙醇可增加HRR和HRR。加入乙醇可以延长点火延迟，而燃烧时间几乎相同。与JME燃料相比，通过添加乙醇降低bsfc。的CO，UHC，和NO _X的形成是由分别为40％，40％，和40％，显着降低，与添加乙醇。最后，使用正丁醇和JME作为与乙醇的助溶剂可支持CI发动机中可再生能源的增长。