%0 Journal Article %T Exhaust Emission Analysis of an Internal Combustion Engine Fuelled with Hydrogen-Ethanol Dual Fuel %J International Journal of Engineering %I Materials and Energy Research Center %Z 1025-2495 %A Yousufuddin, Syed %A Nawazish Mehdi, S. %D 2008 %\ 08/01/2008 %V 21 %N 2 %P 203-210 %! Exhaust Emission Analysis of an Internal Combustion Engine Fuelled with Hydrogen-Ethanol Dual Fuel %K hydrogen %K Ethanol %K Compression Ratio %K Spark ignition %K emissions %R %X The work presented in this paper is an attempt to evaluate the exhaust emission characteristics of a hydrogen-ethanol dual fuel combination with different percents of hydrogen substitutions (i.e. 0-80 % by volume and of 20 % increment ) at three different compression ratios of 7:1, 9:1 and 11:1. Experimental investigations have been carried out on a computer interfaced with; four-stroke cycle, single-cylinder, compression ignition (CI) engine, which was converted to spark ignition (SI) and carburetion, to suit ethanol fuel and a provision was made at the inlet manifold of the said engine to induct hydrogen gas. The effect of hydrogen substitutions on CO, HC, NOx emissions at 7, 9 and 11 compression ratios were determined. It was found that, at 100 % load, the percentage ofhydrogen substitution varied from zero to 80 % and the NOX emissions increased by 58.62, 59.3, 62.74 % for 7, 9, 11 compression ratios respectively. When the effect of compression ratio changed from 7:1 to 11:1 the same change took place in the percentage of substitution which was a reduction of CO and HC by 30.4 and 21.67 %. %U https://www.ije.ir/article_71715_28a9b173dee8444fcf8914f36efa5980.pdf