THERMAL SCIENCE
International Scientific Journal
EXPERIMENTAL INVESTIGATION ENERGY BALANCE AND DISTRIBUTION OF A TURBOCHARGED GDI ENGINE FUELLED WITH ETHANOL AND GASOLINE BLEND UNDER TRANSIENT AND STEADY-STATE OPERATING CONDITIONS
ABSTRACT
Improving the performance and reducing emissions in a Diesel engine is the single most objective in current research. Various methods of approach have been studied and presented in literature. A novel but not so pursued study is on the performance of a rotating diesel injector. To date, there has been very little study by implementing a rotating injector. Studies have shown an improvement on the performance of an engine, but with a complicated external rotating mechanism. In the present research, a novel self-rotating fuel injector is designed and developed that is expected to improve the performance without the need for a complicated rotating mechanism. The design procedure, CFD simulation along with 3- D printing of a prototype is presented. Numerical modelling and simulation are performed to study the combustion characteristics of the rotating injector viz-a-viz a standard static injector. Comparison based on heat release, efficiency, and emissions are presented. While the proposed 9-hole injector had slight loss in thermal efficiency, the modified 5-hole had a slight increase in thermal efficiency when compared to the static baseline readings. The NOx reduced by 13% and CO increased by 14% compared baseline emissions for the 5-hole version.
KEYWORDS
PAPER SUBMITTED: 2019-01-12
PAPER REVISED: 2019-08-27
PAPER ACCEPTED: 2019-09-12
PUBLISHED ONLINE: 2019-10-06
THERMAL SCIENCE YEAR
2020, VOLUME
24, ISSUE
Issue 1, PAGES [243 - 257]
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