Performance and Emission Characteristics on a Direct Injection Diesel Engine by using Diesel and Jatropha Curcas Oil Blends

摘要

In the present investigation the high viscosity of the Jatropha curcas oil, which has been considered as a potential alternative fuel for the single cylinder direct injection CI engine was considerably decreased by blending with diesel. The performances of the engine using blends of diesel and jatropha curcas oil in various proportions were evaluated in a Kirloskar, TV i model engine. Significant improvement in engine performance was observed as compared to pure diesel alone. The test results conformed that 5% to 20% jatropha curcas oil could be substituted for diesel without any engine modification and without preheating of the blends. The final results showed the increase in BTE, reduction in SFC, exhaust gas temperature, engine cooling water temperature and smoke density. Hence, this made the blends particularly 95% diesel-5% jatropha curcas oil and 90%diesel-10% jatropha curcas oil in a suitable alternative for diesel.