Overview Of Cooling System Engineering Essay

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In order to reducing fuel consumption and meet the emission standards, many improvements has been made. The examples of the improvements are combustion strategies, fuel injection system, exhaust emission and fuel quality[1]. There are four possible sources of atmospheric pollution from the automobile. Without emission controls, a carburetor and fuel tank emits vapors, the crankcase emits blowby gases and the tailpipe emits exhaust gases that contain pollutants. The main regulated pollutant in engine exhaust are nitrogen oxides (NOx), carbon monoxide (CO), unburned hydrocarbon (HC) and smoke[2]. These air pollutants are harmful to human beings as well as plants and animals. The law now requires automotive manufacturers to install emission controls. Car that gives off excessive amount of air pollutants may not be allowed on the streets someday.

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Car model that will be used is Perodua Kancil 660cc (4 stroke and 3 cylinder). Then for the fuel, petrol RON 95 will be used. Three test will be conducted in investigate the engine performance, fuel consumption and emission rate. The test for engine performance is dynamometer test. A dynamometer is a device that is used for measuring force, moment of force (torque), and power. For example, the power produced by an engine, motor or other rotating prime mover can be calculated by simultaneously measuring torque and rotational speed (RPM). For the fuel consumption, we will conducted a fuel test by using a new tank provided by automotive lab. Unit to measure the fuel test is in liter/km. To measuring the emission rate, gas analyzer is used and the measurement unit is in concentration of gas which is parts per million (ppm).

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The RPM and gears can be referred in the table below. Table 3.1 : RPM for each of the gear .. Hydrocarbon (HC), carbon monoxide (CO) and nitrogen oxide (NOx) are measured in parts per million (ppm). For this emission test, the device that will be used is the gas analyzer 95/3. The gun of this device will be placed into the tailpipe to measure the exhaust rate. The data will be taken during the various RPM that already been set up which is 2000 rpm, 3000 rpm and 4000 rpm. The result of this test will be recorded in this device. C:UsersFaisal Mamat.FaisalMamat-PCDesktopdyno and gas analyservKBx3J-b1dLfHTA3MeaWYgo8LcKrPxDuaprQ5PBq-VY.jpg . Figure 3.5 : Gas Analyzer 95/3 .

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