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  2. 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 ...

  3. Dedicated outdoor air system - Wikipedia

    en.wikipedia.org/wiki/Dedicated_outdoor_air_system

    DOAS air handling unit with heat recovery wheel and passive dehumidification. A dedicated outdoor air system (DOAS) is a type of heating, ventilation and air-conditioning system that consists of two parallel systems: a dedicated system for delivering outdoor air ventilation that handles both the latent and sensible loads of conditioning the ventilation air, and a parallel system to handle the ...

  4. Thermal wheel - Wikipedia

    en.wikipedia.org/wiki/Thermal_Wheel

    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 ...

  5. Easy-to-Read Version - Wikipedia

    en.wikipedia.org/wiki/Easy-to-Read_Version

    The ERV caused a slight bit of controversy among a small number of lay members of the Churches of Christ (the WBTC is an outreach of the Churches of Christ).Goebel Music wrote a lengthy book critiquing this translation titled "Easy-to-Read Version: Easy to Read or Easy to Mislead?", criticizing the ERV's method of translation, textual basis, and wording of certain passages. [5]

  6. File:Koppen-Geiger Map HRV present.svg - Wikipedia

    en.wikipedia.org/wiki/File:Koppen-Geiger_Map_HRV...

    You are free: to share – to copy, distribute and transmit the work; to remix – to adapt the work; Under the following conditions: attribution – You must give appropriate credit, provide a link to the license, and indicate if changes were made.

  7. United States building energy codes - Wikipedia

    en.wikipedia.org/wiki/United_States_building...

    Depiction of New York World Building fire in New York City in 1882. Building codes in the United States are a collection of regulations and laws adopted by state and local jurisdictions that set “minimum requirements for how structural systems, plumbing, heating, ventilation, and air conditioning (), natural gas systems and other aspects of residential and commercial buildings should be ...

  8. Functional residual capacity - Wikipedia

    en.wikipedia.org/wiki/Functional_residual_capacity

    Lung volumes. Functional residual capacity (FRC) is the volume of air present in the lungs at the end of passive expiration. [1] At FRC, the opposing elastic recoil forces of the lungs and chest wall are in equilibrium and there is no exertion by the diaphragm or other respiratory muscles.

  9. HRV - Wikipedia

    en.wikipedia.org/wiki/HRV

    Croatia (ISO 3166-1 alpha-3 code: HRV; Croatian: Republika Hrvatska) Croatian language (ISO 639-2 and ISO 639-3 codes hrv; Croatian: hrvatski) Honda HR-V, a sport utility vehicle; HRV, a Rockwell scale of materials' hardness