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  2. Thermal cutoff - Wikipedia

    en.wikipedia.org/wiki/Thermal_cutoff

    Thermal fuses are usually found in heat-producing electrical appliances such as coffeemakers and hair dryers. They function as safety devices to disconnect the current to the heating element in case of a malfunction (such as a defective thermostat) that would otherwise allow the temperature to rise to dangerous levels, possibly starting a fire.

  3. Thermostat - Wikipedia

    en.wikipedia.org/wiki/Thermostat

    Although the thermostat may indicate the system is in defrost and electric heat is activated, the defrost function is not controlled by the thermostat. Since the heat pump has electric heat elements for supplemental and reheats, the heat pump thermostat provides for use of the electric heat elements should the refrigeration system fail.

  4. Thermal expansion valve - Wikipedia

    en.wikipedia.org/wiki/Thermal_expansion_valve

    A thermal expansion valve is a key element to a heat pump; this is the cycle that makes air conditioning, or air cooling, possible. A basic refrigeration cycle consists of four major elements: a compressor, a condenser, a metering device and an evaporator. As a refrigerant passes through a circuit containing these four elements, air ...

  5. 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]

  6. Boiler blowdown - Wikipedia

    en.wikipedia.org/wiki/Boiler_blowdown

    The skimmer may be more effective at removing floating oil which might otherwise cause foaming. Surface blowdown is normally fed to a flash tank and heat exchanger for heat recovery. The flashed steam can be used in the feedwater heater. These energy economies are seldom practical with infrequent bottom blowdown.

  7. Boiler (power generation) - Wikipedia

    en.wikipedia.org/wiki/Boiler_(power_generation)

    Some superheaters are radiant type (absorb heat by thermal radiation), others are convection type (absorb heat via a fluid i.e. gas) and some are a combination of the two. So whether by convection or radiation the extreme heat in the boiler furnace/flue gas path will also heat the superheater steam piping and the steam within as well.

  8. Electric water boiler - Wikipedia

    en.wikipedia.org/wiki/Electric_water_boiler

    Japanese Zojirushi brand "Thermo Pot" electric kettle hot water dispenser Wall mounted, unpressurized electric boiler with 5 liters maximum capacity. An electric water boiler, also called a thermo pot or tea urn [1] in British English, is a consumer electronics small appliance used for boiling water [2] [3] and maintaining it at a constant temperature in an enclosed reservoir.

  9. Heating element - Wikipedia

    en.wikipedia.org/wiki/Heating_element

    A heating element is a device used for conversion of electric energy into heat, consisting of a heating resistor and accessories. [1] Heat is generated by the passage of electric current through a resistor through a process known as Joule heating. Heating elements are used in household appliances, industrial equipment, and scientific ...

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