Flashcards in Refrigeration Principles Deck (22)
The air surrounding any object
British thermal unit
A unit for measuring heat quantity equal approximately to the amount of heat produced by the burning of ordinary kitchen match. More specifically, it is the amount of heat required to raise the temperature of one pound of water one degree Fahrenheit. (12000-btu in 1 ton)
A small diameter tube ( metering device ), whose bore and length are designed to permit the passage of a specific amount of liquid refrigerant or other liquid at a specific pressure drop.
The amount of refrigerant in a system; to put in the refrigerant charge.
A heating or cooling element made of pipe or tubing with or without extensions or fins
A term commonly used meaning the evaporator
In a compression refrigeration system a process by which the pressure of the refrigerant is increased
A device for increasing the pressure I hear laden refrigerant vapors thus increasing the heat level ( super-heating) within those vapors so that the heat contained can be released into the outside atmosphere.
The process whereby a vapor is changed to a liquid by removal of heat after it's dew point (condensation temp) is reached.
A vessel or arrangement of pipes or tubing, in which vapor is liquified by removal of heat.
A refrigeration machine consisting of one or more power driven compressors, condenser, liquid receivers and other components
The process of transferring heat along the elements of a substance as from a tube to a fin.
The transfer of heat by the movement of fluid or air
Refrigeration (mechanical) cycle
Complete cycle of refrigerant from a condensing unit (compressor-condenser) through a system of lines or tubing to the evaporator coil and back into the condensing unit; a cycle in which heat is absorbed in the evaporator and given up in the condenser
To remove water in all forms from other matter
The temp at which water vapor turns into liquid
A device placed in refrigeration system to attract and destroy unwanted moisture which may be in a system.
That part ( heat exchanger ) of a cooling system in which refrigeration is vaporized
A thermostatically controlled valve, or metering device for controlling the boiling point and flow or refrigerant to the cooling element ( evaporator ).
That part of the refrigeration system where refrigerant is under the greatest amount of pressure where heat is rejected (condenser section) . This is area of highest temperatures and highest pressures.
The tube or piping carrying liquid refrigerant from the condenser or receiver of a refrigeration system to a pressure reducing device.