Volume No. 4 Issue No.: 2 Page No.: 484-496 Oct.-Dec 2009

 

ENVIRONMENTAL BENEFITS THROUGH REDUCTION IN EXHAUST EMISSIONS OF C.I. ENGINE USING CLEAN BURNING FUEL : AN EXPERIMENTAL STUDY

 

Rajesh Kumar Pandey*, A. Rehman and R.M. Sarviya

Department of Mechanical Engineering M.A. National Institute of Technology Bhopal (INDIA)

 

Received on : July 15, 2009

 

ABSTRACT

 

Transport vehicles greatly pollute the environment through emissions such as CO, CO2, NOx, SOx, unburnt or partially burnt HC and particulate emissions. Fossil fuels are the chief contributors to urban air pollution and major source of green house gases and considered the prime cause behind the global climate change. With the increasing fuel prices, the auto industry forced to make their engines to breathe cleanly and fuel efficiently. This paper discusses about the utilization and advantages of using karanja oil, as the bio fuels. The experiments conducted on single cylinder direct injection diesel engine for the various blends (B20, B40, B60, B80 and B100) of karanja biodiesel with diesel and compared with the diesel fuel. The results indicate that Blends of karanja oil gives good performance of the engine in addition to the lower engine emissions. It has been observed from the results that by using Karanja biodiesel there is decrease in brake thermal efficiency and increase in specific fuel consumption, the reason for this the combined effects of the relative density, viscosity and heating value of the blends and poor combustion characteristics of Karanja biodiesel due to higher viscosity and poor volatility. The gaseous emissions of oxide of nitrogen from all blends are higher than mineral diesel at all engine loads. Significant improvements observed in the performance parameters of the engine as well as exhaust emissions, when blends of Karanja oil used. Karanja oil blends with diesel can replace diesel for operating the C.I. engines giving lower HC, CO, Smoke emissions and improved engine performance.

 

Keywords : C.I. Engine, Kinematic viscosity, Calorific value, Engine efficiency, Exhaust emissions

 

 

BACK