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  2. Water heating - Wikipedia

    en.wikipedia.org/wiki/Water_heating

    Domestically, water is traditionally heated in vessels known as water heaters, kettles, cauldrons, pots, or coppers. These metal vessels that heat a batch of water do not produce a continual supply of heated water at a preset temperature. Rarely, hot water occurs naturally, usually from natural hot springs. The temperature varies with the ...

  3. Boiler explosion - Wikipedia

    en.wikipedia.org/wiki/Boiler_explosion

    The sudden dispersion and projection of the water in the boiler against the bounding surfaces of the boiler is the great cause of the violence of the results: the dispersion, being caused by the momentary generation of steam throughout the mass of the water, and in its efforts to escape, it carries the water before it, and the combined momentum ...

  4. List of IEC standards - Wikipedia

    en.wikipedia.org/wiki/List_of_IEC_standards

    IEC 62117 Nuclear reactor instrumentation – Pressurized light water reactors (PWR) – Monitoring adequate cooling within the core during cold shutdown; IEC 62121 Methods of measurement for minidisc recorders/players; IEC 62122 Methods of measurement for consumer-use digital VTRs – Electronic and mechanical performances

  5. Energy conservation - Wikipedia

    en.wikipedia.org/wiki/Energy_conservation

    Low-power or insulated versions of these devices give off less heat for the air conditioning to remove. The air conditioning system can also improve efficiency by using a heat sink that is cooler than the standard air heat exchanger, such as geothermal or water. In cold climates, heating air and water is a major demand for household energy use.

  6. Mercury switch - Wikipedia

    en.wikipedia.org/wiki/Mercury_switch

    A Single-Pole, Single-Throw (SPST) mercury switch on millimetre graph paper, device length approximately 1.5 cm Another mercury switch design. A mercury switch is an electrical switch that opens and closes a circuit when a small amount of the liquid metal mercury connects metal electrodes to close the circuit.

  7. Oxygen sensor - Wikipedia

    en.wikipedia.org/wiki/Oxygen_sensor

    Some sensors have an air inlet to the sensor in the lead, so contamination from the lead caused by water or oil leaks can be sucked into the sensor and cause failure. [7] Symptoms of a failing oxygen sensor [8] includes: sensor light on dash indicates problem, increased tailpipe emissions, increased fuel consumption, hesitation on acceleration ...

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  9. Thermal conductance and resistance - Wikipedia

    en.wikipedia.org/wiki/Thermal_conductance_and...

    The diagram shows an equivalent thermal circuit for a semiconductor device with a heat sink: Q ˙ {\displaystyle {\dot {Q}}} is the power dissipated by the device. T J {\displaystyle T_{\rm {J}}} is the junction temperature in the device.

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