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7 Cards in this Set

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  • Back

What are some types of cooling systems?

Mechanical compression, Absorption, Evaporative, thermoelectric.

What is evaporative cooling?

The use of a water mist or spray to cool the air.

Evaporative coolers can drop the air temperature by X if the entering air is dry.

20 degrees Fahrenheit

Misters and swamp coolers are examples of?

Evaporative cooling

What is the Peltier Effect?

The principle that makes thermoelectric refrigeration work. When current flows through a thermocouple, one end heats up and the other cools down.

Compression refrigeration cycle operating principles are?

-Heat travels from hot to cold.


-Liquids absorb large amounts of heat when they boil off to a gas.


-Gases release large amounts of heat when they condense to a liquid.


-When something is boiling or condensing, its temperature remains constant.


-The temperature at which a liquid boils is controlled by its pressure.

What is a metering device?

Controls the flow of refrigerant into the evaporator of a refrigeration system.