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  2. Thermoelectric cooling - Wikipedia

    en.wikipedia.org/wiki/Thermoelectric_cooling

    Thermoelectric cooling uses the Peltier effect to create a heat flux at the junction of two different types of materials. A Peltier cooler, heater, or thermoelectric heat pump is a solid-state active heat pump which transfers heat from one side of the device to the other, with consumption of electrical energy, depending on the direction of the current.

  3. Thermoelectric effect - Wikipedia

    en.wikipedia.org/wiki/Thermoelectric_effect

    The thermoelectric effect is the direct conversion of temperature differences to electric voltage and vice versa via a thermocouple. [1] A thermoelectric device creates a voltage when there is a different temperature on each side. Conversely, when a voltage is applied to it, heat is transferred from one side to the other, creating a temperature ...

  4. Thermoelectric materials - Wikipedia

    en.wikipedia.org/wiki/Thermoelectric_materials

    The efficiency of a thermoelectric device for electricity generation is given by , defined as =.. The maximum efficiency of a thermoelectric device is typically described in terms of its device figure of merit where the maximum device efficiency is approximately given by [7] = + ¯ + ¯ +, where is the fixed temperature at the hot junction, is the fixed temperature at the surface being cooled ...

  5. Coleman (brand) - Wikipedia

    en.wikipedia.org/wiki/Coleman_(brand)

    Coleman gas lamps were provided to play the first night football game west of the Mississippi River. [2] In 1996, the company acquired the French Campingaz. In September 2004, Jarden acquired American Household, which was the privately-held parent company of Coleman as well as other brands like Sunbeam Products, for $745.6 million in cash. [3] [4]

  6. 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.

  7. Thermoelectric generator - Wikipedia

    en.wikipedia.org/wiki/Thermoelectric_generator

    Thermoelectric generators function like heat engines, but are less bulky and have no moving parts. However, TEGs are typically more expensive and less efficient. [ 2 ] When the same principle is used in reverse to create a heat gradient from an electric current, it is called a thermoelectric (or Peltier) cooler .

  8. How to Watch the Last-Minute Northern Lights Display Tonight

    www.aol.com/watch-last-minute-northern-lights...

    The northern lights are expected to be strongest between Friday, Jan. 31, and Saturday, Feb. 1. The best time to view them is from 10:00 p.m. and 2 a.m. local time.

  9. Cryocooler - Wikipedia

    en.wikipedia.org/wiki/Cryocooler

    The Joule-Thomson (JT) cooler was invented by Carl von Linde and William Hampson so it is also called the Linde-Hampson cooler. It is a simple type of cooler which is widely applied as cryocooler or as the (final stage) of coolants. It can easily be miniaturized, but it is also used on a very large scale in the liquefaction of natural gas.

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