Energy Analysis in IC Engine using Diesel Blends as a Fuel

In this experimental study, the main objective was to carry out exergy analysis of diesel fuel, diesel-camphor oil blend and diesel-eucalyptus oil blend as a fuel in diesel engine at various engine loads. This work discusses a method of estimating the availability destructions and exergetic efficiency of combustion for the fuel used. Several engine parameters such as specific fuel consumption, brake thermal efficiency, exergy efficiency were investigated. The results indicated that the exergy efficiency was increased by 5% for C20 and 4% for E20 as compared to neat diesel due to increase in exhaust gas temperature. In neat diesel fuel, unsaturated hydrocarbons are associated with lower availability destruction, they resulted in poor exergetic efficiency as a significant fraction of the fuel availability is lost in the products. The exergy analysis was done by coupling first law of thermodynamics and second law of thermodynamics.