How can we control emission?
These steps include: reducing toxic emissions from industrial sources; reducing emissions from vehicles and engines through new stringent emission standards and cleaner burning gasoline; and addressing indoor air pollution though voluntary programs.
What is the purpose of the emission system?
Your vehicle’s exhaust system is designed to take care of toxic emissions your car produces. It will 1) direct harmful hydrocarbons away from the driver and passengers, and 2) reduce the air polution your car releases into the environment, helping keep the air clean.
What does the evaporation emission control eliminate?
The purpose of evaporative emissions systems is to reduce or eliminate the release of vaporized HC into the atmosphere. The HC vapors, such as volatile organic compounds (VOCs), react in the atmosphere with nitrogen oxides (NOx) and contribute to the formation of ground level ozone and photochemical smog.
What is an emission control device?
Abstract. Emission control devices are installed to meet the exhaust standards of the Clean Air Act for carbon monoxide and hydrocarbons, and it is necessary to know, from a public health point of view, how exhaust emissions may be affected by changes in fuel additives and fuel composition.
What are the two methods of emission control?
To control exhaust emissions, which are responsible for two-thirds of the total engine pollutants, two types of systems are used: the air-injection system and the exhaust gas recirculation (EGR) system.
What are the drawbacks of emission control system?
An advantage of the aftertreatment is that a large amount of pollutants can be reduced and the reduction can be applied to many kinds of pollutants. A disadvantage of the aftertreatment is that it requires additional devices outside an engine.
How do you control car emissions?
The controlling techniques of exhaust gas emissions are engine modification, fuel pretreatment, fuel additives, exhaust gas recirculation (EGR) and catalytic converters. A catalytic converter is an emissions control device that converts more toxic exhaust gas pollutants into less toxic pollutants.