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  2. Ground source heat pump - Wikipedia

    en.wikipedia.org/wiki/Ground_source_heat_pump

    A heat pump in combination with heat and cold storage. A ground source heat pump (also geothermal heat pump) is a heating/cooling system for buildings that use a type of heat pump to transfer heat to or from the ground, taking advantage of the relative constancy of temperatures of the earth through the seasons.

  3. Energy in Ohio - Wikipedia

    en.wikipedia.org/wiki/Energy_in_Ohio

    Through 2010, Ohio was ranked #2 in solar manufacturing in the United States behind Oregon, employing 1088 among manufacturers and installers. [60] [61] Between 2007 and 2010, the state received nearly $750 million in solar investments. [62] The Toledo metro area is recognized nationally as a "seat of solar energy", [63] nicknamed "Solar Valley".

  4. Vertiv - Wikipedia

    en.wikipedia.org/wiki/Vertiv

    Most recently, certain assets and centrifugal chiller technology from BiXin Energy, a manufacturer of chillers, heat pumps, heat-recovery solutions, and air-handling units, were acquired in December 2024. [19] In 2023, Vertiv's share price increased 252%, outperforming all companies in the S&P 500 index. [20]

  5. Central heating - Wikipedia

    en.wikipedia.org/wiki/Central_heating

    An air source heat pump can be used to air condition the building during hot weather, and to warm the building using heat extracted from outdoor air in cold weather. Air-source heat pumps are generally uneconomic for outdoor temperatures much below freezing. In colder climates, geothermal heat pumps can be used to extract heat from the ground ...

  6. Air source heat pump - Wikipedia

    en.wikipedia.org/wiki/Air_source_heat_pump

    An air source heat pump (ASHP) is a heat pump that can absorb heat from air outside a building and release it inside; it uses the same vapor-compression refrigeration process and much the same equipment as an air conditioner, but in the opposite direction. ASHPs are the most common type of heat pump and, usually being smaller, tend to be used ...

  7. Heat recovery ventilation - Wikipedia

    en.wikipedia.org/wiki/Heat_recovery_ventilation

    Diagramatic operation of a thermal wheel Ljungström Air Preheater by Swedish engineer Fredrik Ljungström (1875–1964). A thermal wheel, also known as a rotary heat exchanger, or rotary air-to-air enthalpy wheel, energy recovery wheel, or heat recovery wheel, is a type of energy recovery heat exchanger positioned within the supply and exhaust air streams of air-handling units or rooftop ...

  8. Cardinal Power Plant - Wikipedia

    en.wikipedia.org/wiki/Cardinal_Power_Plant

    Instead of constructing a new chimney for Unit 3's FGD system, AEP retrofitted a cooling tower to release waste heat into the atmosphere. [10] AEP announced in 2015 that its Cardinal unit will be converted into a natural gas power plant by 2030 in order to comply with Environmental Protection Agency (EPA) standards. [ 11 ]

  9. Heat pump and refrigeration cycle - Wikipedia

    en.wikipedia.org/wiki/Heat_pump_and...

    Thermodynamic heat pump cycles or refrigeration cycles are the conceptual and mathematical models for heat pump, air conditioning and refrigeration systems. [1] A heat pump is a mechanical system that transmits heat from one location (the "source") at a certain temperature to another location (the "sink" or "heat sink") at a higher temperature. [2]

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