
1) Cooling technology
Found on
https://www.crosswordclues.com/clue/water-jacket

A water jacket is a water-filled casing surrounding a device, typically a metal sheath having intake and outlet vents to allow water to be pumped through and circulated. The flow of water to an external heating or cooling device allows precise temperature control of the device. ==Applications== Water jackets are often used in watercooling. They ar...
Found on
http://en.wikipedia.org/wiki/Water_jacket

A heat exchanger element enclosed in a boiler. Water is circulated with a pump through the jacket where it picks up heat from the combustion chamber after which the heated water circulates to heat distribution devices. A water jacket is also an enclosed water-filled chamber in a tankless coiled wat...
Found on
http://www.daviddarling.info/encyclopedia/W/AE_water_jacket.html

A heat exchanger element enclosed in a boiler. Water is circulated with a pump through the jacket where it picks up heat from the combustion chamber after which the heated water circulates to heat distribution devices. A water jacket is also an enclosed water-filled chamber in a tankless coiled water heater. When a faucet is turned on water flows ....
Found on
http://www.electromn.com/glossary/w.htm

[
n] - a container filled with water that surrounds a machine to cool it
Found on
http://www.webdictionary.co.uk/definition.php?query=water%20jacket
noun a container filled with water that surrounds a machine to cool it; especially that surrounding the cylinder block of an engine
Found on
https://www.encyclo.co.uk/local/20974

A heat exchanger element enclosed in a boiler. Water is circulated with a pump through the jacket where it picks up heat from the combustion chamber after which the heated water circulates to heat distribution devices. A water jacket is also an enclosed water-filled chamber in a tankless coiled water heater. When a faucet is turned on water flows i...
Found on
https://www.encyclo.co.uk/local/22819
No exact match found.