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  2. Thermosiphon - Wikipedia

    en.wikipedia.org/wiki/Thermosiphon

    Thermosyphon circulation in a simple solar water heater (not a working model; there is no water supply to replenish the tank when the tap is used). A thermosiphon (or thermosyphon) is a device that employs a method of passive heat exchange based on natural convection, which circulates a fluid without the necessity of a mechanical pump.

  3. Expansion tank - Wikipedia

    en.wikipedia.org/wiki/Expansion_tank

    An expansion tank or expansion vessel is a small tank used to protect closed water heating systems and domestic hot water systems from excessive pressure. The tank is partially filled with air, whose compressibility cushions shock caused by water hammer [ citation needed ] and absorbs excess water pressure caused by thermal expansion .

  4. Turboexpander - Wikipedia

    en.wikipedia.org/wiki/Turboexpander

    A schematic diagram of a demethanizer extracting hydrocarbon liquids from natural gas. Raw natural gas consists primarily of methane (CH 4), the shortest and lightest hydrocarbon molecule, along with various amounts of heavier hydrocarbon gases such as ethane (C 2 H 6), propane (C 3 H 8), normal butane (n-C 4 H 10), isobutane (i-C 4 H 10), pentanes and even higher-molecular-mass hydrocarbons.

  5. Stirling engine - Wikipedia

    en.wikipedia.org/wiki/Stirling_engine

    A Stirling engine is a heat engine that is operated by the cyclic expansion and contraction of air or other gas (the working fluid) by exposing it to different temperatures, resulting in a net conversion of heat energy to mechanical work. [1] [2]

  6. Thermal expansion valve - Wikipedia

    en.wikipedia.org/wiki/Thermal_expansion_valve

    A thermal expansion valve or thermostatic expansion valve (often abbreviated as TEV, TXV, or TX valve) is a component in vapor-compression refrigeration and air conditioning systems that controls the amount of refrigerant released into the evaporator and is intended to regulate the superheat of the refrigerant that flows out of the evaporator ...

  7. Engine–generator - Wikipedia

    en.wikipedia.org/wiki/Engine–generator

    [6] [7] A 5.5 kW portable generator will generate the same amount of carbon monoxide as six cars, which can quickly build up to fatal levels if the generator has been placed indoors. [8] [9] Using portable generators in garages, or near open windows or air conditioning vents can also result in carbon monoxide poisoning. [10]

  8. Thermal energy storage - Wikipedia

    en.wikipedia.org/wiki/Thermal_energy_storage

    With proper insulation of the tank the thermal energy can be usefully stored for up to a week. [14] When electricity is needed, the hot molten salt is pumped to a conventional steam-generator to produce superheated steam for driving a conventional turbine/generator set as used in any coal, oil, or nuclear power plant. A 100-megawatt turbine ...

  9. Water heating - Wikipedia

    en.wikipedia.org/wiki/Water_heating

    An 80 US gal (300 L; 67 imp gal) electric storage tank water heater was able to have a minimum energy factor of 86% under the pre-2015 standard, while under the 2015 standard, the minimum energy factor for an 80-gallon electric storage tank water heater is now 197%, which is only possible with heat pump technology. This rating measures ...

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