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  2. Thermal cutoff - Wikipedia

    en.wikipedia.org/wiki/Thermal_cutoff

    A thermal switch (sometimes thermal reset or thermal cutout (TCO)) is a device which normally opens at a high temperature (often with a faint "plink" sound) and re-closes when the temperature drops. The thermal switch may be a bimetallic strip, often encased in a tubular glass bulb to protect it from dust or short circuit. Another common design ...

  3. 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]

  4. HVAC control system - Wikipedia

    en.wikipedia.org/wiki/HVAC_control_system

    After the control of air flow and temperature was standardized, the use of electromechanical relays in ladder logic to switch dampers became standardized. Eventually, the relays became electronic switches, as transistors eventually could handle greater current loads. By 1985, pneumatic controls could no longer compete with this new technology ...

  5. Infinite switch - Wikipedia

    en.wikipedia.org/wiki/Infinite_switch

    The infinite switch is comparable to a slow pulse-width modulation device, but both the duty cycle and the cycle rate vary. The device is also conceptually similar to a bimetallic switching thermostat , except that the infinite switch responds to the temperature of its internal heater as a model for the temperature of the "burner" being ...

  6. November 8, 2024 at 2:29 PM MEXICO CITY (AP) — The U.S. government extended avocado import permissions to Guatemala on Friday, but don’t expect that to result in cheaper guacamole anytime soon.

  7. College Football Playoff: Which teams are in position for the ...

    www.aol.com/sports/college-football-playoff...

    The College Football Playoff cake is getting close to baked, which means much of the angst and anger of the past few weeks over hypothetical and projected scenarios have proved a waste of time.

  8. There are a few foods you may want to skip on Thanksgiving if you're taking a GLP-1 medication such as Ozempic, dietician Kylie Bensley, founder of the women’s nutrition company, Sulinu, tells ...

  9. Temperature cycling - Wikipedia

    en.wikipedia.org/wiki/Temperature_cycling

    Temperature cycling (or temperature cycle) is the process of cycling through two temperature extremes, typically at relatively high rates of change. It is an environmental stress test used in evaluating product reliability as well as in manufacturing to catch early-term, latent defects by inducing failure through thermal fatigue .

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