PENGARUH PEMANASAN BAHAN BAKAR MELALUI PIPA BERSIRIP TRANSVERSAL PADA UPPER TANK RADIATOR DAN PENAMBAHAN ETANOL TERHADAP EMISI GAS BUANG PADA TOYOTA KIJANG

Abstract

<p>The purpose of this study were to determine the effect usage of gasoline heating through a capillary<br />tube which is transversal finned in the upper tank of radiator on exhaust emissions of CO and HC in the engine<br />of Toyota Kijang. This study is experimental. The sample in this study was the machine of Toyota Kijang. Free<br />variable of the research is the usage of fuel heating with fin variations on the copper capillar tube consist of<br />copper capillar tube without fin, finned copper capillar tube with the ranges between the fins are 10 mm, 20 mm,<br />and 30 mm and variations of ethanol in premium 0%, 5%, 10%, 15%, 20%, 25%, and 30%. Experimental<br />method to measure exhaust emissions of CO and HC in the engine of Toyota Kijang. The result of this research<br />shows that (1) The lowest carbonmonoxide gas emissions level was foundin the heating of copper pipe with 20<br />mm fins distance in the solution of fuel and ethanol 30% at 0.209 (% vol). (2) The lowest Hydrocarbon emissions<br />level was found in the heating of pipe with 10 mm fins distance in the solution of gasoline and ethanol 20% at<br />294.33 (ppm vol). (3)The heating of copper pipe with 20 mm spacing between the fins and the variation of<br />ethanol 30% is the best result of the entire treatments with CO gas at 0.209 (% vol) and HC at 310.00 (ppm vol).<br />(4) The heating in fuel mixture gasoline 75% and ethanol 25% through radiator upper tank with gap between<br />fins 10 mm is the best treatment than from other treatment in testing use with CO t 0,31 (%vol) dan HC at 340<br />(ppm vol).</p>