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  2. Pilot light - Wikipedia

    en.wikipedia.org/wiki/Pilot_light

    In natural gas furnaces, water heaters, and room heating systems, a safety cut-off switch is normally included so that the gas supply to the pilot and heating system is shut off by an electrically operated valve if the pilot light goes out. This cut-off switch usually detects the pilot light in one of several ways: A flame rectification device. [2]

  3. Here's What to Do If Your Fireplace Pilot Light Goes ... - AOL

    www.aol.com/lifestyle/heres-fireplace-pilot...

    The thermocouple sensor detects the heat from the pilot light and sends a signal to keep the gas valve open, but if the pilot light is extinguished, then the thermocouple will send a signal to the ...

  4. Syngas - Wikipedia

    en.wikipedia.org/wiki/Syngas

    Electricity generated from renewable sources is also used to process carbon dioxide and water into syngas through high-temperature electrolysis. This is an attempt to maintain carbon neutrality in the generation process. Audi, in partnership with company named Sunfire, opened a pilot plant in November 2014 to generate e-diesel using this ...

  5. Forced-air gas - Wikipedia

    en.wikipedia.org/wiki/Forced-air_gas

    Each room has an outlet from the duct system, often mounted in the floor or low on the wall – some rooms will also have an opening into the cold air return duct. Depending on the age of the system, forced-air gas furnaces use either a pilot light or a solid-state ignition system (spark or hot surface ignition) to light the natural gas burner. [3]

  6. Coal gasification - Wikipedia

    en.wikipedia.org/wiki/Coal_gasification

    In industrial chemistry, coal gasification is the process of producing syngas—a mixture consisting primarily of carbon monoxide (CO), hydrogen (H 2), carbon dioxide (CO 2), methane (CH 4), and water vapour (H 2 O)—from coal and water, air and/or oxygen. Historically, coal was gasified to produce coal gas, also known as "town gas".

  7. Odorizer - Wikipedia

    en.wikipedia.org/wiki/Odorizer

    Odorizers are used in carbon dioxide fire extinguisher systems, the odorizer assembly injects wintergreen oil into the carbon dioxide stream when the agent is discharged. Approximately 50 cc of wintergreen oil contained within a frangible glass cartridge is mounted within a protective housing attached to the discharge piping in such a manner as ...

  8. Associated petroleum gas - Wikipedia

    en.wikipedia.org/wiki/Associated_petroleum_gas

    The following table lists typical percentages of the major alkanes in APG, and includes the typical levels of nitrogen and carbon dioxide. Water and hydrogen sulfide contaminate APG at more varied levels. Helium is present in significant amounts in some cases, and is a relatively valuable by-product. APG is processed to separate out most other ...

  9. Water heating - Wikipedia

    en.wikipedia.org/wiki/Water_heating

    At high combustion efficiencies a drain must be supplied to handle the water condensed out of the combustion products, which are primarily carbon dioxide and water vapor. In traditional plumbing in the UK, the space-heating boiler is set up to heat a separate hot water cylinder or water heater for potable hot water.

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