Exhaust Gases


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Exhaust Gases

 

the gases produced during the combustion of fuel in internal-combustion engines. Toxic components such as CO and NO2 are among the constituents of exhaust gases. The CO content in the exhaust gases of carburetor engines varies from 0.5 to 13 percent. Most of the CO is the result of incomplete combustion caused by poor carburetion or other engine malfunction. Especially harmful components such as nitrogen oxides and certain carcinogens are contained, although in small amounts, in diesel exhausts.

The toxicity level of engine exhaust gases can be reduced by installing catalytic afterburners in the exhaust system, by improving carburetors, and by a newly developed torch ignition system that ensures more complete combustion of the fuel. In the USSR the maximum permissible content of CO in the exhaust gases of carburetor engines and of fumes from diesel engines is regulated by special standards.

References in periodicals archive ?
Turbulence around moving vehicles and natural winds may reduce the rise of hot exhaust gases briefly but in the long term there should be a reduction in respiratory problems in pedestrians.
2] showed the way of recovering the WH from exhaust gases of ICE by using Organic Rankine Cycle (ORC) system.
However, studies have shown that the harmful emission is most reduced by conducting the purification of exhaust gases after they came out of the engine, i.
In this research paper exhaust gases concentrations were calculated when internal combustion engine (ICE) was running on the 70% petrol and 30% HHO mixture.
When you realise that around 50 per cent of every litre of fuel combusted is dissipated as losses, you rapidly recognise the potential of the exhaust gases.
Demand for devices to remove harmful substances from exhaust gases from coal-fired power stations is on the rise in the United States, as the country is moving to stiffen regulations on such exhaust gas emissions, Hitachi said.
Our first coating applications in this area enabled teams to blow hot exhaust gases through the diffuser and floor safely," explains Zircotec's sales director Peter Whyman.
As the exhaust gases equalize between the combustion chamber and the atmospheric pressure outside of the exhaust system, the difference in pressure decreases and velocity of leaving exhaust decreases.
The exhaust gas temperature gauge measures exhaust gases as they exit the engine and help to identify rich or lean air/fuel ratios; whereas the transmission fluid temperature gauge gives drivers early warning of an overheating transmission.
Other companies introduced engines with various forms of exhaust gas recirculation (EGR), a process that returns exhaust gases to the combustion chamber.
Autoflame says its Exhaust Gas Analyser (EGA) operates by using a conventional probe to draw off exhaust gases and relaying them via tubing to the wall mounted EGA.
A nozzle injects fuel and air down the middle of the combustor cylinder as hot exhaust gases rise along the walls, explains team member Jerry M.