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  2. 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 ...

  3. 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 ...

  4. Run-around coil - Wikipedia

    en.wikipedia.org/wiki/Run-around_coil

    A run-around coil installation, serving air handling units on the roof of an office building. A run-around coil is a type of energy recovery heat exchanger most often positioned within the supply and exhaust air streams of an air handling system, or in the exhaust gases of an industrial process, to recover the heat energy.

  5. Recuperator - Wikipedia

    en.wikipedia.org/wiki/Recuperator

    In many types of processes, combustion is used to generate heat, and the recuperator serves to recuperate, or reclaim this heat, in order to reuse or recycle it. The term recuperator refers as well to liquid-liquid counterflow heat exchangers used for heat recovery in the chemical and refinery industries and in closed processes such as ammonia-water or LiBr-water absorption refrigeration cycle.

  6. Public health experts are warning of a ‘quad-demic’ this ...

    www.aol.com/finance/public-health-experts...

    Taking precautions to protect yourself from a quartet of infectious diseases can lessen your odds of starting off 2025 sick.

  7. Hot air engine - Wikipedia

    en.wikipedia.org/wiki/Hot_air_engine

    In 1699, Guillaume Amontons (1663–1705) presented, to the Royal Academy of Sciences in Paris, a report on his invention: a wheel that was made to turn by heat. [6] The wheel was mounted vertically. Around the wheel's hub were water-filled chambers. Air-filled chambers on the wheel's rim were heated by a fire under one side of the wheel.

  8. Novak Djokovic won't speak to the Australian Open's local TV ...

    www.aol.com/novak-djokovic-wont-speak-australian...

    Novak Djokovic declined to do a customary post-match TV interview at the Australian Open after his win Sunday night to protest comments made on air by someone who works for the official ...

  9. Most-Watched Television Networks: Ranking 2024’s Winners and ...

    www.aol.com/most-watched-television-networks...

    No surprise, live sports continues to work its magic for the traditional networks, as NBC was also up year vs. year and even took the adults 18-49 crown for 2024 … Most-Watched Television ...

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