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Influence of an oxygenated additive on emission of an engine fueled with neat biodiesel

Petroleum Science 2017年第4期14卷 791-797页

作者： Amith Kishore Pandian Dinesh Babu Munuswamy Santhanakrishnan Radhakrishana ramesh bapu bathey ramakrishnan Beemkumar Nagappan Yuvarajan Devarajans Department of Mechanical Engineering Sathyabama UniversityChennaiIndia Department of Mechanical Engineering Panimalar Engineering CollegeChennaiIndia Department of Mechanical Engineering SRM UniversityKattankulathurChennaiIndia Department of Mechanical Engineering Chennai Institute of TechnologyChennaiIndia Department of Mechanical Engineering Vel Tech Dr.RR&Dr.SR UniversityChennaiIndia

Biodiesel obtained from mustard seed is found to be a promising alternative for petroleum diesel fuel owing to its similarity in physical and chemical properties. In this work, TiO2nano-fluid which acts as an oxygen buffer during combustion was added to mustard oil biodiesel(MOBD) to study its effect on emission characteristics of MOBD. TiO2nano-fluid can provide high surface energy during the course of combustion and reduces the limitations of neat biodiesel. A four-stroke, multi-cylinder,water-cooled, diesel engine was used in the experiments and was fueled with diesel, neat MOBD and MOBD with TiO2nanoparticles at 100 ppm(MOBDT100), 200 ppm(MOBDT200) and 300 ppm(MOBDT300). Experimental results revealed that the TiO2nanoparticles had positive effect on the emission characteristics of MOBD as it acted as an oxidation buffer. MOBDT300 showed a reduction in HC, CO and smoke emissions as compared to pure *** addition, NOxemissions were also reduced by the catalytic activity of the TiO2nanoparticles which reduce the peak combustion temperature. Therefore, TiO2nano-fluid had a positive effect on reducing the emissions associated with neat biodiesel.

关键词： Emissions Nano-fluid Turbulence

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Emission and performance analysis of a diesel engine burning cashew nut shell oil bio diesel mixed with hexanol

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Petroleum Science 2018年第1期15卷 176-184页

作者： Amith Kishore Pandian Dinesh Babu Munuswamy Santhanakrishnan Radhakrishanan Yuvarajan Devarajan ramesh bapu bathey ramakrishnan Beemkumar Nagappan Department of Mechanical Engineering Sathyabama University Department of Mechanical Engineering Panimalar Engineering College Department of Mechanical Engineering SRM University Department of Mechanical Engineering Vel Tech Dr. RR &Dr. SR University Department of Mechanical Engineering Chennai Institute of Technology

In this study, the effect of doping hexanol into biodiesel which is from neat cashew nut shell biodiesel oil on the emissions and the performance characteristics was studied in a constant speed diesel engine. The main purpose of this work is to reduce various emissions and also to improve the performance of the diesel engine when fueled with blends of hexanol and neat cashew nut shell biodiesel. Cashew nut shell oil is not edible, and hence it can be used as a viable alternative to *** nut shell biodiesel is prepared by conventional transesterification. Hexanol with 99.2% purity was employed as an oxygenated additive. Experimental studies were conducted by fueling diesel as a baseline and by fueling hexanol and neat cashew nut shell biodiesel mixture. A fuel comprising 10%（by volume） of hexanol and 90%（by volume） neat cashew nut shell biodiesel was referred to as CNSBD900 H100 and fuel comprising 20%（by volume） of hexanol and 80%（by volume）of neat cashew nut shell biodiesel was referred to as CNSBD800 H200. This study also investigated the possibility of using pure biofuel in an unmodified naturally aspirated diesel engine. The outcome of this study showed that adding hexanol at10% and 20%（by volume） to cashew nut shell biodiesel results in a reduction in emissions. In addition, a significant improvement in brake thermal efficiency and reduction in brake-specific fuel consumptions were achieved. Hence, it could be concluded that hexanol could be a viable and promising additive for improving the drawbacks of biodiesel when it was used to fuel an unmodified diesel engine.

关键词： Hexanol Biodiesel Engine performance Emission

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