What are the engine emission and how they can be controlled?

What are the emissions from engine?

It has been found that HC emissions can be reduced by incor- porating an additional spark plug at appropriate locations in the engine combustion chamber. By starting combustion at two points, the flame travel distance and total reaction time are both reduced, and less expansion quenching will result.

Why are engine emissions controlled?

Automobile emissions control covers all the technologies that are employed to reduce the air pollution-causing emissions produced by automobiles. … Emissions of many air pollutants have been shown to have variety of negative effects on public health and the natural environment.

What are common emission control systems?

Some of the more popular emission control devices installed on the automobile are: EGR VALVE, CATALYTIC CONVERTER, AIR PUMP, PCV VALVE, CHARCOAL CANISTER.

How do you control engine emissions?

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.

How do you control car emissions?

Everyone can take steps to reduce vehicle pollution

  1. Ride a bike or walk. If you are only going a short distance, consider riding a bike or walking instead of driving. …
  2. Take public transit. …
  3. Carpool. …
  4. Avoid idling. …
  5. Use alternative fuels.
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How do diesel engines control emissions?

In-engine measures to reduce emissions

  1. Fuel injection technology. …
  2. Exhaust gas recirculation (EGR) …
  3. Charge movement. …
  4. Supercharging. …
  5. Compression ratio. …
  6. Diesel oxidation catalyst (DOC) …
  7. Particulate reduction systems. …
  8. NOx aftertreatment systems.

How can Emission Standards control vehicular pollution?

Later, it was replaced by Bharat Stage Emission standards. … Under the Bharat Stage IV norms which are in turn based on Euro IV norms, Bharat Stage-IV , CO should be 1.0 (g/km) and HC+NOx (g/km) should be 0.18 (combined)1 as per CPCB.

How emissions are controlled at source and post combustion?

Control of air toxics emissions from combus- tion sources generally relies on improving combustion conditions and post-combustion controls, including scrubbers, filters, electro- static precipitators, flaring (which can form other pollutants), and catalytic destruction.

What is emission control equipment?

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 types of emissions?

There are many sources of emissions. These have been grouped into four categories: point, mobile, biogenic, and area.

What is an emission control service?

With the rising cost of fuel our emissions control service helps fuel efficiency by removing contaminants within the engine to minimise contamination of the new engine oil. What is an emission control service? … This restores the integrity of the injector spray pattern and helps reduce emissions and improve fuel economy.

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