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An Experimental Investigation on Performance and Emissions of a Single Cylinder D.I Diesel Engine with Manifold Hydrogen Induction | ||
| Journal of University of Babylon | ||
| Article 1, Volume 25, Issue 2, 2017, Pages 632-651 | ||
| Authors | ||
| Haroun A.K. Shahad; Emad D. Abood | ||
| Abstract | ||
| Hydrogen is a clean fuel for internal combustion engines as it produces only water vapor and nitrogen oxides when it burns. In this research, hydrogen is used as a blending fuel with diesel to reduce pollutants emission and to improve performance. It is inducted in the inlet manifold, (continuous manifold induction), which is of a single cylinder, four stroke, direct injection, variable compression ratio water cold diesel engine, type (Kirloskar). This technique of hydrogen blending is selected because of its simplicity and low cost. Hydrogen blending is built on the basis of energy replacement. A special electronic unit is designed and fabricated to control hydrogen blending ratio. The maximum achieved ratio is 30% of input energy and beyond that the engine operation becomes unsatisfactory. Tests are done with 17.5 compression ratio and 1500 rpm. The brake specific fuel consumption is reduced by 29% and the engine thermal efficiency increased by 16% at these operating conditions. The pollutant emissions of carbon oxides, UHC, and smoke opacity are dramatically decreased by 19.5%, 13%,and 45% respectively while NOx emission increased by 10%. | ||
| Keywords | ||
| Hydrogen; Blended Fuel; manifold induction; Engine Performance; Engine Emissions | ||
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