Car Heater Application Of Computing And The Impact Of Engine Emissions

With the increasing demand on the comfort of the automobiles, the heater is commonly applied on them in the cold zone. But the calculation and effectiveness evaluation of the application of the heaters are in the elementary step, lacking the support of the theory and the test result.In this paper, first introduce the current situation of the use of the heaters, then sort out the information of the principle and the classification and the application. For calculate the heat productivity, I analyze the heat to warm room air and the heat to preheat the engine, then obtain the way to calculate the heat productivity of the heater. It provide the basis of the calculation for the application of heaters.The Other part of this work is to treat of the influence of the automobile exhaust with the warming of the heaters. According to the Euro III emission regulation, at -7°C ambient temperature , compare the exhaust component part of the engine with the exhaust component part after preheating with the heater in the front of the catalyst and the back. The test result indicate that a heater was used to increase the cooling water's temperature before cold-start of the gasoline, this method can effectively reduce the exhaust emission of CO, HC and NO_x during the cold-start period. When a heater was used to increase the cooling water's temperature and the heater exhaust was used to warm the catalyst , because the catalyst didn't been lighted on ,only reduce some emissions ,the method need further research.