Gazi Üniversitesi Fen Bilimleri Dergisi (May 2017)
Thermodynamic analysis of Corn Oil Biodiesel Usage as Fuel in a Diesel Engine
Abstract
An effective performance assessment of the internal combustion engine can be achieved by thermodynamic analysis (energy and exergy analysis). To that end, in this present study, a thermodynamic analysis of the corn oil biodiesel usage as fuel in single cylinder diesel engine was performed by evaluating experimental data. Experiments were carried out at full load and 2000 rpm by fueling the engine with diesel fuel and corn oil biodiesel. It was found that corn oil biodiesel gives 11.89% higher brake specific fuel consumption, while it results in 2.25% less brake specific energy consumption than diesel fuel. The same second law efficiency is obtained for tested fuels, although the use of corn oil biodiesel increases the first law efficiency by 0.76%. Additionally, total exergy destruction rate for diesel and biodiesel are calculated as 6.77 kW and 6.67 kW, respectively. Based on the comparative assessment of the thermodynamic analysis results, it can be said that corn oil biodiesel is a suitable alternative fuel for diesel engines.
