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  2. Vaillant Group - Wikipedia

    en.wikipedia.org/wiki/Vaillant_Group

    The history of the Vaillant Group dates back to 1874, when Johann Vaillant set up a master fitter's business. In 1894 Johann Vaillant patented a new "closed-system" gas-fired bathroom boiler. [3] This was the first device that made it possible to heat water hygienically, without contaminating it with combustion gases.

  3. Joule–Thomson effect - Wikipedia

    en.wikipedia.org/wiki/Joule–Thomson_effect

    In thermodynamics, the Joule–Thomson effect (also known as the Joule–Kelvin effect or Kelvin–Joule effect) describes the temperature change of a real gas or liquid (as differentiated from an ideal gas) when it is expanding; typically caused by the pressure loss from flow through a valve or porous plug while keeping it insulated so that no heat is exchanged with the environment.

  4. Thermal decomposition - Wikipedia

    en.wikipedia.org/wiki/Thermal_decomposition

    Processes in the thermal degradation of organic matter at atmospheric pressure. Thermal decomposition, or thermolysis, is a chemical decomposition of a substance caused by heat. The decomposition temperature of a substance is the temperature at which the substance chemically decomposes.

  5. Increasing overnight temperatures spell out bad news for ...

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  6. Superheated steam - Wikipedia

    en.wikipedia.org/wiki/Superheated_steam

    Superheated steam was widely used in main line steam locomotives. Saturated steam has three main disadvantages in a steam engine: it contains small droplets of water which have to be periodically drained from the cylinders; being precisely at the boiling point of water for the boiler pressure in use, it inevitably condenses to some extent in the steam pipes and cylinders outside the boiler ...

  7. Boiler (power generation) - Wikipedia

    en.wikipedia.org/wiki/Boiler_(power_generation)

    A boiler incorporates a firebox or furnace in order to burn the fuel and generate heat. The generated heat is transferred to water to make steam, the process of boiling. This produces saturated steam at a rate which can vary according to the pressure above the boiling water. The higher the furnace temperature, the faster the steam production.

  8. We could see a 50-degree temperature drop overnight in ... - AOL

    www.aol.com/could-see-50-degree-temperature...

    Overnight, a strong cold front is expected to come in, plummeting temperatures into the teens. Sheppard said Milwaukee should see temps of about 17 to 19 degrees around 8 to 9 a.m. Wednesday.

  9. Temperature drops to -18.9C in Highland village - AOL

    www.aol.com/temperature-drops-13-6c-schools...

    Temperatures in a hamlet in northern Scotland dropped to -18.9C (-2F) in the early hours of Saturday - the UK's coldest January night in 15 years. It is the coldest January overnight temperature ...