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  2. Diesel exhaust - Wikipedia

    en.wikipedia.org/wiki/Diesel_exhaust

    Diesel exhaust is the exhaust gas produced by a diesel engine, ... resulting in blue and white smoke and lower power outputs until the engine has warmed. This is ...

  3. Exhaust gas - Wikipedia

    en.wikipedia.org/wiki/Exhaust_gas

    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 .

  4. Back-fire - Wikipedia

    en.wikipedia.org/wiki/Back-fire

    Exhaust system backfires occur in engines that have an emission system malfunction, like an air injection system diverter valve problem, an exhaust leak, or when the catalytic converter has been removed. In some high-performance vehicles, when a driver shifts up and lets off the accelerator, the engine has a moment of running rich. This causes ...

  5. Smoke composition - Wikipedia

    en.wikipedia.org/wiki/Smoke_composition

    Zinc chloride smoke is grey-white and consists of tiny particles of zinc chloride. The most common mixture for generating these is a zinc chloride smoke mixture (HC), consisting of hexachloroethane, grained aluminium and zinc oxide. The smoke consists of zinc chloride, zinc oxychlorides, and hydrochloric acid, which absorb the moisture in

  6. Colored smoke - Wikipedia

    en.wikipedia.org/wiki/Colored_smoke

    Coloured smoke was first used in 1967 during an American burnout competition by a small contestant, as a means to wow the crowd. [citation needed] Smoke released from aircraft was originally based on a mixture of 10-15% dye, 60-65% trichloroethylene or tetrachloroethylene, and 25% diesel oil, injected into the exhaust gases of the aircraft ...

  7. Smog - Wikipedia

    en.wikipedia.org/wiki/Smog

    Smog, or smoke fog, is a type of intense air pollution. The word "smog" was coined in the early 20th century, and is a portmanteau of the words smoke and fog [ 1 ] to refer to smoky fog due to its opacity, and odor. [ 2 ]

  8. Smoke - Wikipedia

    en.wikipedia.org/wiki/Smoke

    As early as the 15th century Leonardo da Vinci commented at length on the difficulty of assessing smoke, and distinguished between black smoke (carbonized particles) and white 'smoke' which is not a smoke at all but merely a suspension of harmless water particulates. [64] Smoke from heating appliances is commonly measured in one of the ...

  9. Propelling nozzle - Wikipedia

    en.wikipedia.org/wiki/Propelling_nozzle

    These exhausts converted some of the waste energy of the (internal combustion) engines exhaust-flow into a small amount of forward thrust by accelerating the hot gasses in a rearward direction to a speed greater than that of the aircraft. All exhaust configurations do this to some extent if the exhaust gasses are discharged in a rearward direction.