As a sound solution for decreasing
the in-cylinder and exhaust temperature, prevention of the
engine knock and reduced NOx emissions, water injection
on various engine types has stimulated
significant interest in recent years further to enhance
fuel efficiency and comply with more stringent
emission regulations. Even though water injection
mechanisms with various objectives are different,
there are also varied advantages on engine performance
and emissions. In this study, experimental
analysis was performed to examine the effect of
humidified air induction on a single cylinder, four
stroke, air-cooled, 350cc Royal Enfield Bullet spark
ignition engine exhaust emissions, with
modifications made to assist port fuel injection. Tests
have been performed on test engine fuelled with
gasoline over a range of engine loads and at rated
speed for 75% and 95% relative humidity with
water injection. The outcomes of the experimental
analysis reveal that increasing the intake air
humidity from 75% to 95% decreased the exhaust
emissions of NOx, CO, HC and CO2 at 95% rated
load of the engine without much or less impact on the
thermal brake efficiency.
Author
(s) Details
G. Karthikeyan
Department
of Mechanical Engineering, Government Polytechnic College, Korukkai, India.
S. Sankaran
Department of Civil Engineering, University College of Engineering,
Thirukkuvalai, India.
View Book :- https://bp.bookpi.org/index.php/bpi/catalog/book/236
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