Authors:Â Ningappa. S Nidasosi, S. N.Topannavar, Sahebagoouda SanganagoudarÂ
Abstract: Current energy policies are addressing environmental issues, climate change and encouraging cleaner energy. Air pollution becomes major threat for leaving being due to fossil fuel consumption. As far as India is concerned world’s 3rd largest fossil fuel consumption takes place which puts obstacles for social and economic development. Simplest route is vegetable oil utilization in CI engine but some operational and durability problems are encountered by using direct injection of vegetable oils to CI engine due to their high viscosity and low volatility. This problem is addressed by preheating the oil with exhaust gas in a shell and tube heat exchanger which helps the saving of chemical processing cost. Present experimental studies the performance, emission and combustion characteristics of diesel and blends with hone oil (D100, B20 & B40) with preheating at different loads. Comparison of unheated and preheated of above blends are carried out by analyzing various parameters such as break thermal fuel consumption BSFC ,ISFC , thermal efficacies , powers ,mass emission of various gaseous pollutants species such as CO,HC,CO2 and NOx ,combustion parameters like indicated mean effective pressure IMEP ,BIMEP and FMEP etc. Detailed study revealed that all performance parameters are significantly increased and in case of blending the preheating provides equivalent results compared to diesel injection and better emissions. The CO, CO2 and HC are reduced 20-25% with preheating due to improved combustion but NOx emission increases due to increase in combustion temperature.
Keywords : Biodiesel, NOx emission, IC Engine, Preheated Honge Oil
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