Gases emitted as a result of fuel reactions in combustion engines
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This diesel-powered truck emits an exhaust gas rich in black particulate matter when starting its engine.
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Exhaust gas or flue gas is emitted as a result of the combustion of fuels such as natural gas, gasoline (petrol), diesel fuel, fuel oil, biodiesel blends,[1] or coal. According to the type of engine, it is discharged into the atmosphere through an exhaust pipe, flue gas stack, or propelling nozzle. It often disperses downwind in a pattern called an exhaust plume.
It is a major component of motor vehicle emissions (and from stationary internal combustion engines), which can also include crankcase blow-by and evaporation of unused gasoline.
Motor vehicle emissions are a common source of air pollution and are a major ingredient in the creation of smog in some large cities. A 2013 study by the Massachusetts Institute of Technology (MIT) indicates that 53,000 early deaths occur per year in the United States alone because of vehicle emissions.[2] According to another study from the same university, traffic fumes alone cause the death of 5,000 people every year just in the United Kingdom.[3]
^Omidvarborna; et al. (2014). "Characterization of particulate matter emitted from transit buses fueled with B20 in idle modes". Journal of Environmental Chemical Engineering. 2 (4): 2335–2342. doi:10.1016/j.jece.2014.09.020.
^Caiazzo, Fabio; Ashok, Akshay; Waitz, Ian A.; Yim, Steve H.L.; Barrett, Steven R.H. (November 2013). "Air pollution and early deaths in the United States. Part I: Quantifying the impact of major sectors in 2005". Atmospheric Environment. 79: 198–208. Bibcode:2013AtmEn..79..198C. doi:10.1016/j.atmosenv.2013.05.081.
^Roland Pease. "Traffic pollution kills 5,000 a year in UK, says study". BBC News.
Exhaustgas or flue gas is emitted as a result of the combustion of fuels such as natural gas, gasoline (petrol), diesel fuel, fuel oil, biodiesel blends...
In internal combustion engines, exhaustgas recirculation (EGR) is a nitrogen oxide (NOx) emissions reduction technique used in petrol/gasoline, diesel...
and responded faster. The most common application is to measure the exhaust-gas concentration of oxygen for internal combustion engines in automobiles...
An exhaustgas analyser or exhaust carbon monoxide (CO) analyser is an instrument for the measurement of carbon monoxide among other gases in the exhaust...
An exhaust system is used to guide reaction exhaustgases away from a controlled combustion inside an engine or stove. The entire system conveys burnt...
Flue gas is the gas exiting to the atmosphere via a flue, which is a pipe or channel for conveying exhaustgases, as from a fireplace, oven, furnace,...
An exhaustgas temperature gauge (EGT gauge or EGT sensor) is a meter used to monitor the exhaustgas temperature of an internal combustion engine in conjunction...
device designed to remove diesel particulate matter or soot from the exhaustgas of a diesel engine. Wall-flow diesel particulate filters usually remove...
In automotive engineering, an exhaust manifold collects the exhaustgases from multiple cylinders into one pipe. The word manifold comes from the Old...
addition of fluid in accordance with parameters such as NO x level in the exhaustgas (before catalytic converter, after catalytic converter, and possibly...
Diesel exhaust is the gaseous exhaust produced by a diesel type of internal combustion engine, plus any contained particulates. Its composition may vary...
referred to as the ideal exhaustgas velocity because it is based on the assumption that the exhaustgas behaves as an ideal gas. As an example calculation...
turbosupercharger) is a forced induction device that is powered by the flow of exhaustgases. It uses this energy to compress the intake air, forcing more air into...
like cold gas thrusters whose reaction mass is only the fuel they carry, specific impulse is exactly proportional to the effective exhaustgas velocity...
gas scrubbers) are a diverse group of air pollution control devices that can be used to remove some particulates and/or gases from industrial exhaust...
pressurized gas enters a turbine, producing a shaft work output in the process, used to drive the compressor; the unused energy comes out in the exhaustgases that...
the period of the propellant burn. The gas flow is non-turbulent and axisymmetric from gas inlet to exhaustgas exit (i.e., along the nozzle's axis of...
executions by exhaustgas were performed by Einsatzgruppen using gas vans, trucks modified to divert engine exhaust into a sealed interior gas chamber. Starting...
controlled via exhaustgas recirculation which returns some of the exhaust back into the engine intake. Catalytic converters are used to convert exhaust chemicals...
bottoming cycle. During the constant pressure process 4-1 the exhaustgases from the gas turbine reject heat. The feed water, wet and super heated steam...
carbon monoxide detectors, proper venting of gas appliances, keeping chimneys clean, and keeping exhaust systems of vehicles in good repair. Treatment...
means of nuclear reactions. All chemically fueled heat engines emit exhaustgases. The cleanest engines emit water only. Strict zero-emissions generally...
A catalytic converter is an exhaust emission control device which converts toxic gases and pollutants in exhaustgas from an internal combustion engine...
in the jet pipe behind (i.e., "after") the turbine, "reheating" the exhaustgas. Afterburning significantly increases thrust as an alternative to using...
boiler's exhaustgases passed. This is the reverse arrangement to that usually but not always seen in the fire tubes of a boiler; there the hot gases usually...
An exhaust heat recovery system turns waste heat energy in exhaustgases into electric energy for batteries or mechanical energy reintroduced on the crankshaft...
slower combustion. Exhaustgas temperatures can exceed 1300 K under high load at engine speeds of 6000 rpm−1. To improve the exhaustgas behavior of the...
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