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  2. List of obsolete technology - Wikipedia

    en.wikipedia.org/wiki/List_of_obsolete_technology

    This is a list of obsolete technology, superseded by newer technologies. Obsolescence is defined as the "transition from available to unavailable from the manufacturer in accordance with the original specification." [1] Newer technologies can mostly be considered as disruptive innovation. Many older technologies co-exist with newer alternatives ...

  3. Radiant heating and cooling - Wikipedia

    en.wikipedia.org/wiki/Radiant_heating_and_cooling

    In buildings, the radiant heat flow between two internal surfaces (or a surface and a person) is influenced by the emissivity of the heat emitting surface and by the view factor between this surface and the receptive surface (object or person) in the room. [38] Thermal (longwave) radiation travels at the speed of light, in straight lines. [9]

  4. Heat-transfer fluid - Wikipedia

    en.wikipedia.org/wiki/Heat-transfer_fluid

    Heat Capacity: A fluid’s heat capacity indicates how much thermal energy it can transport and store, impacting the efficiency of the heat transfer process. [ 2 ] Thermal Conductivity and Thermal Diffusivity : These properties influence the rate at which heat is transferred through the fluid, affecting how quickly a system can respond to ...

  5. Self-regulating heater - Wikipedia

    en.wikipedia.org/wiki/Self-regulating_heater

    If the heat required to hold the desired temperature is known, a PTC heating element can be selected to provide the correct amount of heat at the desired temperature. Such a heating element will warm up quickly because it produces more heat at low temperatures.

  6. Heat - Wikipedia

    en.wikipedia.org/wiki/Heat

    The molar heat capacity is the heat capacity per unit amount (SI unit: mole) of a pure substance, and the specific heat capacity, often called simply specific heat, is the heat capacity per unit mass of a material. Heat capacity is a physical property of a substance, which means that it depends on the state and properties of the substance under ...

  7. Technology - Wikipedia

    en.wikipedia.org/wiki/Technology

    Technology is the application of conceptual knowledge to achieve practical goals, especially in a reproducible way. [1] The word technology can also mean the products resulting from such efforts, [2] [3] including both tangible tools such as utensils or machines, and intangible ones such as software.

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  9. Thermal treatment - Wikipedia

    en.wikipedia.org/wiki/Thermal_treatment

    Thermal treatment is any waste treatment technology that involves high temperatures in the processing of the waste feedstock. Commonly this involves the combustion of waste materials. [1] Systems that are generally considered to be thermal treatment include: Cement kiln; Gasification; Incineration; Mechanical heat treatment; Pyrolysis; Thermal ...