1Department of Mechanical Engineering, K.L. College of Engineering, Green Fields, Guntur-522502, AP, India.
2Balaji Institute of Technology & Science, Narasampet, Warangal-506331, AP, India.
At the end of this century it's believed that there must be scarcity for petroleum products. More over that, we are seeking to control the emission by finding alternative source of fuels. Another reason in the fact that a large percentage of crude oil must be imported from other countries. By considering the cost point of view it is a significant factor. So we must go for a various options of using fuel.
Among the various options, Ethanol, an alcohol seems to be a most promising option for countries like India because of its availability from agriculture products. Alcohol can be used in diesel engines in following ways: One method is injection of ethanol with inlet air using carburetion or electronic injection system and other is emulsion of diesel and ethanol also enables a reduction in exhaust NOX, smoke and particulate matter. This paper critically reviews different aspects of ethanol as an alternative fuel for diesel engine.
HC and CO emissions were also reduced in the regions of reduced PM and NOx emissions that overlapped. Because the ethanol-diesel emulsions contain less energy on both a per-unit-mass basis and a per-unit-volume basis, there was a reduction in maximum torque of up to 10% and an increase in brake-specific fuel consumption of up to 7% when these emulsions were used.
Alternate fuel, ethanol, emulsification, blend formation, emulsifiers
