Cooling technology

thumb|Food in a refrigerator with its door open

machine with spinning blades used to create airflow

cooling of air in buildings or vehicles

engine powered by a source of heat applied externally to it

thumb|Liquid nitrogen|Nitrogen is a liquid under . In physics, cryogenics is the production and behaviour of materials at very low temperatures.

thumb|Technicians preparing a body for cryopreservation in 1985

device which extracts waste heat to the atmosphere through the cooling of a water stream

thumb|Commercial refrigeration

thumb |An ab anbar (water reservoir) with windcatchers (openings near the top of the towers) in the central desert city of [[Yazd, Iran]] thumb |Aghazadeh Mansion in Abarkooh, [[Iran, has an elaborate 18-m windtower with two levels of openings, plus some smaller windtowers.]]

thumb|alt=The nucleus is depicted by two red circles with inscribed plus symbols and one purple circle with no inscription. Around the nucleus there is a black ring - a symbol of an electron shell. On it are two teal circles with inscribed minus symbols, depicting electrons.|Diagram of a Helium-3 atom Helium-3 (3He see also helion) is a light, stable isotope of helium with two protons and one neutron (in contrast to the more common isotope, helium-4, which has two protons and two neutrons.) Helium-3 and hydrogen-1 are the only stable nuclides with more protons than neutrons. It was discovered

buildings used to store ice throughout the year, commonly used prior to the invention of the refrigerator

degradation of water quality by any process that changes ambient water temperature

type of fan appliance permanently mounted to the ceiling horizontally

A coolant is a substance, typically liquid, that is used to reduce or regulate the temperature of a system. An ideal coolant has high thermal capacity, low viscosity, and low cost, is non-toxic and chemically inert, and neither causes nor promotes corrosion of the cooling system. Some applications also require the coolant to be an electrical insulator.

electrically powered heat-transfer

variety of techniques where atomic samples are cooled via interacting with lasers

supply chain that uses refrigeration of temperature-sensitive goods from point of manufacture to point of administration/sale

fluid material squeezed between parts to keep them in close thermal contact

thumb|upright=1.35|right|York International liquid-cooled chiller A chiller is a machine that removes heat from a liquid coolant via a vapor-compression, adsorption refrigeration, or absorption refrigeration cycles. This liquid can then be circulated through a heat exchanger to cool equipment, or another process stream (such as air or process water). As a necessary by-product, refrigeration creates waste heat that must be exhausted to ambience, or for greater efficiency, recovered for heating purposes. Vapor compression chillers may use any of a number of different types of compressors. Most c

refrigerated cargo ship type

thumb|A cooling fan Cooling is removal of heat, usually resulting in a lower temperature and/or phase change. Temperature lowering achieved by any other means may also be called cooling. The transfer of thermal energy may occur via thermal radiation, heat conduction or convection. Examples can be as simple as reducing temperature of tea.

single pressure absorption refrigeration

thumb|right|300px|Yakhchāl of Moayedi, Iran A yakhchāl (; yakh meaning 'ice' and chāl meaning 'pit') is an ancient type of ice house, which also made ice. They are primarily found in the Dasht-e Lut and Dasht-e-Kavir deserts, whose climates range from cold (BWk) to hot (BWh) desert regions.

thumb|upright|A typical "portable" dehumidifier can be moved about on built-in casters. A dehumidifier is an air conditioning device which reduces and maintains the level of humidity in the air. This is done usually for health or thermal comfort reasons or to eliminate musty odor and to prevent the growth of mildew by extracting water from the air. It can be used for household, commercial, or industrial applications. Large dehumidifiers are used in commercial buildings such as indoor ice rinks and swimming pools, as well as manufacturing plants or storage warehouses. Typical air conditioning s

device that cools air through the evaporation of water

cooling technology based on the magnetocaloric effect

method of heat removal from components and industrial equipment

thumb|A refrigerated minibar in a Hyatt|Grand Hyatt hotel, filled with beverages. This minibar detects whenever an item is removed and charges the guest instantly, even if the item is not consumed.

system which uses either air or liquid to remove the waste heat from an internal combustion engine

refrigeration process

method of dissipating heat directly into the atmosphere

component of air conditioning and refrigeration systems

room where the temperature is lowered, for example for food storage

van or truck designed to carry perishable freight at specific temperatures

a device that separates compressed gas by utilizing the phenomenon of vortex flow in the tube into hot and cold streams

a refrigerator which can communicate with its surroundings

mixture for maintaining very low temperatures in laboratories

physician, scientist, inventor (1803–1855)

filled bag designed to be frozen

Absorption refrigerator invented in 1930

used for intermodal cargo

thumb|upright=1.2|alt=Labeled black-and-white image of an icebox|Icebox used in cafés of Paris in the late 1800s An icebox (also called a cold closet) is a compact, non-mechanical refrigerator which was a common early-twentieth-century kitchen appliance before the development of safely powered refrigeration devices. They were insulated cabinets, to which large chunks of ice would need to be added every several days to maintain refrigeration.

Heat pump powered by sound

cryogenic device for cooling to very low temperatures, with no moving parts in the low-temperature region, whose cooling power is provided by the heat of mixing of helium-3 and helium-4

thumb|250px|Slabs of manufactured ice at the Grimsby Ice Factory prior to being crushed, 1990

thumb|Punkahs in the house of a British couple in India c. 1880 thumb|A punkah in the house of French colonials in Indochina c. 1930 thumb|Church interior with an intricate system of punkahs c. 1900

removal of frost and ice from a refrigerator

thermal interface material in the form of a soft pad, used in computing

laser cooling technique

temperature change of a material under an electric field

delivery of chilled water to buildings like offices and factories needing cooling

man-made body of water, formed to cool heated water or to supply cooling water

Auto-defrost, automatic defrost or self-defrosting is a technique which regularly defrosts the evaporator in a refrigerator or freezer. Appliances using this technique are often called frost free, frostless, or no-frost.

cooling using a circulating liquid as a heat-exchange medium

Cryoablation is a process that uses extreme cold to destroy tissue. Cryoablation is performed using hollow needles (cryoprobes) through which cooled, thermally conductive fluids are circulated. Cryoprobes are positioned adjacent to the target in such a way that the freezing process will destroy the diseased tissue. Once the probes are in place, the attached cryogenic freezing unit removes heat from ("cools") the tip of the probe and by extension from the surrounding tissues.

refrigerated railway wagon

19th century industry

scientific apparatus that is commonly used in quantum optics to cool a beam of atoms from room temperature or above to a few kelvins

Sanhua Holding Group Co., Ltd. (三花控股集团有限公司) is a global manufacturer of controls and components for the HVAC & Refrigeration home appliance, automotive air conditioning and thermal management industries.

heat engine