This research aims to study the pollution feature of combustion and ignition, single-cylinder engine in the form of ethanol and 95 percent are pure lokwam compound 5 percent by volume (EH95) from the test engine compression ratio of 28:1 fuel injection angles between 9 to 6 degrees before top dead center and point fuel injection pressure MPa 90 found that feature rapid combustion of ethanol, heat release rate some mortars. By burning the majority occur during mixing and combustion in a delayed combustion range only partially. All these changes fuel injection angle until the combustion dead center on a point after birth. Meanwhile, the test engine compression ratio 18:1, together with the strategy, fuel injection angle between 100 to 145 degrees before top dead centre point. The hot exhaust gas, in reverse proportion between 45 to 61 percent, and fuel injection pressure is between 70 to 150 MPa found that feature rapid combustion of ethanol, heat release rate model of a single meat mixture. By burning all occur during mixing and combustion in the combustion range only slightly delayed. Both these degrees, and change fuel injection pressure in conjunction with the use of exhaust gas back in the proper proportions, until control of the burning occurs after the death on the center point. Result in the ethanol engine, e.g. two compression ratios with increasing thermal efficiency and pollutant emissions reduced. When comparing with the feature, long-burning, diesel, heat release rate. With continuous mixing and combustion in combustion delay interval in a similar proportion. At present, the high level of pollution discharge
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