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Emission and friction are considered to be the significant contributors towards engine parasitic losses. Inherent engine design responsible for such irregularities is difficult to eliminate totally, as millions of engines operating in such principle cannot be replaced. Therefore, only partial modification is allowed to achieve slight improvement in fuel economy and performance improvement. Such improvement is possible through condition monitoring of IC engine through emission and friction analysis. Using an emission analyzer, the emission gases such as CO, CO2, NOx, HC, lambda (air fuel ratio) are monitored for three different petrol and methanol blend (M5, M10, M15). The brake power response to rpm for different torque and speed are monitored from the engine coupled with eddy current dynamo meter and mounted in a universal engine test bed. Friction power loss is numerically estimated through tribological principles and validated with experimental results. © 2018 Published by Faculty of Engineering Corresponding author: Prakash Chandra Mishra Green Engine Technology Center, School of Mechanical Engineering, KIIT University, Patia, Bhubaneswar, India. E-mail: pmishrafme@kiit.ac.in

Emission and Friction Analysis of IC Engine Running in Methanol Blend