[가솔린엔진부문] 대체연료의 예혼합 스파크 점화 연소시 배기 생성에 관한 연구

Recently, many researches are in progress to develop the substitute fuel which is satisfied to high power, low fuel consumption and low air pollution for alcohol fuel, also are interested in the lean bum. Those regards are raised in domestic and foreign country. Experimental apparatus is constant volume combustor, air compressor, direct-current motor controller for variable flow intensity, ion-probe for measurement of flame propagation velocity. Experimental method is belows ; fuel supply constant volume combustor with equivalence ratio of experimental conditions, air compressor supply combustor with pressurized gas of setting pressure and temperature, direct current motor controller varied with the speed of fan motor, trigger signal of computer with spark ignition, ion-probe signal and pressure variation was stored. As a result in this study, it is found that the combustion characteristics, especially emission were remarkably affected by mixture motion, pressure inside cylinder and equivalence ratio using methanol fuels.