Effect of Performance and Emissions on DI Diesel Engine Using Ethanol Diesel Blends- A Review

Effect of Performance and Emissions on DI Diesel Engine Using Ethanol Diesel Blends- A Review
Authors : Lalit Kumar Daheriya, Nitin Shrivastava
Publication Date: 30-08-2012


Author(s):  Lalit Kumar Daheriya, Nitin Shrivastava

Published in:   International Journal of Engineering Research & Technology

License:  This work is licensed under a Creative Commons Attribution 4.0 International License.

Website: www.ijert.org

Volume/Issue:   Vol.1 - Issue 6 (August- 2012)

e-ISSN:   2278-0181


Ethanol is a renewable source of energy because its sources are derived from bio-based. Due to the limited source of petroleum fuel and increasing cost rapidly day to day needs to generate substitute source of petroleum diesel fuel. The addition of ethanol in diesel fuel decreases high heating value, cetane number, aromatics fractions and kinematic viscosity of ethanol blended diesel fuels and changes distillation temperatures. An additive used to maintain blends stability and homogenous and an ignition improver also to be used, which can improve cetane number of the blends, have favorable effects on the physicochemical properties associated to ignition and combustion of the blends. The main aim of the present review is to study the effect of performance and emission characteristics of blended fuels on a DI diesel engine. The ethanol diesel blends decreases the brake thermal efficiency, brake torque, and brake power while increase the brake specific fuel consumption. At high loads, the blends minimize smoke significantly with a small penalty on CO, acetaldehyde and unburned ethanol emissions compared to diesel fuel. NOx and CO2 emissions of the blends are reduced fairly. At low loads, the blends have small effects on smoke reduction due to overall leaner mixture. With the aid of additive and ignition improver, CO, unburned ethanol and acetaldehyde emissions of the blends can be minimized moderately, even total hydrocarbon emissions are fewer than those of diesel fuel. The results indicate the potential of diesel reformation for clean combustion in diesel engines.


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