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  2. Oxy-fuel welding and cutting - Wikipedia

    en.wikipedia.org/wiki/Oxy-fuel_welding_and_cutting

    As a fuel, acetylene's primary disadvantage in comparison to other fuels is its high price. As acetylene is unstable at a pressure roughly equivalent to 33 ft (10 m) underwater, water-submerged cutting and welding is reserved for hydrogen rather than acetylene. Compressed gas cylinders containing oxygen and MAPP gas

  3. Block heater - Wikipedia

    en.wikipedia.org/wiki/Block_heater

    Electrical cord for powering a block heater. A block heater is used in cold climates to warm an engine prior to starting. They are mostly used for car engines; however, they have also been used in aircraft engines. The most common design of block heater is an electrical heating element embedded in the engine block.

  4. Acetylene - Wikipedia

    en.wikipedia.org/wiki/Acetylene

    Acetylene is a moderately common chemical in the universe, often associated with the atmospheres of gas giants. [50] One curious discovery of acetylene is on Enceladus, a moon of Saturn. Natural acetylene is believed to form from catalytic decomposition of long-chain hydrocarbons at temperatures of 1,700 K (1,430 °C; 2,600 °F) and above ...

  5. Glow plug - Wikipedia

    en.wikipedia.org/wiki/Glow_plug

    Glowplugs are typically used as starting-aid devices, when the engine is being cranked by a starter motor, and in most cases switched off when the engine has reached a defined minimum operating temperature. Diesel engines, unlike common spark-ignition engines, do not use spark plugs to ignite the air-fuel mixture. Instead, they rely solely on ...

  6. History of manufactured fuel gases - Wikipedia

    en.wikipedia.org/wiki/History_of_manufactured...

    As distributed, contains an extremely high proportion of simple hydrocarbon "illuminants", including oliefant gas (ethylene, C 2 H 4) and acetylene gas (C 2 H 2), as well as propane gas (C 3 H 8), marsh gas (methane, CH 4), hydrogen (H 2), and a small amount of carbonic oxide (carbon monoxide, CO). 1000–1500: 40–60

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  8. Flame-start system - Wikipedia

    en.wikipedia.org/wiki/Flame-start_system

    The flame-start system is a cold start aid for starting diesel engines at low ambient temperatures. It reduces the white smoke emission after the engine is started. In addition, it reduces the strain on the starter motor and batteries by shortening the start-up time.

  9. Air preheater - Wikipedia

    en.wikipedia.org/wiki/Air_preheater

    There are two types of air preheaters for use in steam generators in thermal power stations: One is a tubular type built into the boiler flue gas ducting, and the other is a regenerative air preheater. [1] [2] [7] These may be arranged so the gas flows horizontally or vertically across the axis of rotation.

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