Thermoelectric Cooling

(redirected from Peltier cooling)

thermoelectric cooling

[¦thər·mō·i′lek·trik ′kül·iŋ]
Cooling of a chamber based on the Peltier effect; an electric current is sent through a thermocouple whose cold junction is thermally coupled to the cooled chamber, while the hot junction dissipates heat to the surroundings. Also known as thermoelectric refrigeration.

Thermoelectric Cooling


the absorption of heat when an electric current is passed through a thermal converter.

The essence of thermoelectric cooling lies in the appearance of a temperature difference at the junctions of the thermal converter; at the cold junction, heat is absorbed from the substance to be cooled, and the heat is transferred to the hot junction and later to the environment (seePELTIER EFFECT). Concurrently with the generation of cold, heat is liberated in the circuit of the thermal converter and transferred to the cold junction by conduction. The resultant characteristic of the cooling capacity of the thermal converter used for thermoelectric cooling is the efficiency Z = α2/ρλ, where a is the thermoelectric power, λ is the specific heat conductivity, and p is the specific electric resistance. Semiconductors (Z = 1.5–3.5 deg–1)—for example, triple alloys of antimony, tellurium, bismuth, and selenium—are ordinarily used for producing the thermal converters for thermoelectric cooling. Thermoelectric coolers are simple in design, have no moving parts or coolants, and are safe in use but are wasteful of energy (the specific consumption of electricity is 6–8 times greater than in compressor refrigerators). Thermoelectric cooling is ordinarily used in installations with a refrigerating capacity of up to 100 watts, which find practical application in electronics, vacuum technology, instrument-making, and medicine.


References in periodicals archive ?
The Process Ion Chromatograph from Metrohm has a small footprint, an IP 65 cabinet with Peltier cooling and integrated reagent preparation for online monitoring of ionic compounds in aqueous media--from ng/L to % concentrations.
Objective: The aim of JOSPEL project is the development of a novel energy efficient climate system for the optimization of interior temperature control management in electrical vehicles through an integrated approach that combines the application of the thermoelectric Joule and Peltier effect, the development of an efficient insulation of the vehicle interior, the energy recovery from heat zones, battery life increase duration enhancement as a side effect of thermal management, battery consumption reduction by Peltier cooling integration, innovative automated and eco-driving strategies and the electronic control of power flows.
The new minibars come in two different cooling systems - the peltier cooling system and the absorption cooling system.
The temperature control of the Peltier cooling device is more accurate, when the effect of thermal masses on the cold and hot sides of the PCD module is known [7].
So we can carry that the heat from the body is transferred only by Peltier cooling element.
Peltier cooling with a temperature stabilisation circuit is optionally available to allow even greater integration times.
SFT-10 Pump, the SFT-20 maximizes high capacity Peltier cooling to stabilize pump head temperature.
The company's newest model is said to have an improved temperature control system and a more effective Peltier cooling system.
Coupled with a built-in Bayer color filter, Peltier cooling, and advanced multi-functional software, this camera contains all the features necessary to maximize and streamline workflow.
It uses the Peltier cooling effect and can store six regular-sized drink cans.
The device uses thermoelectric Peltier cooling, which obviates the need for liquid nitrogen.
GreenCooler portable gas sample preparation unit can be used with flue gas analyzers to remove moisture from the gas sample using a Peltier cooling element, which condenses the water to remove it.