TRG-TRC003-EN 45
Glossary
radiation The process transferring heat by means of electromagnetic waves
emitted due to the temperature difference between two objects.
refrigerant A substance used to absorb and transport heat for the purpose of
cooling.
refrigeration effect The change in enthalpy that occurs inside the evaporator a
refrigeration cycle that indicates the amount of heat that each pound [kg] of
liquid refrigerant will absorb when it evaporates.
sensible heat Heat energy that, when added to or removed from a substance,
results in a measurable change in temperature.
specific heat The property of a substance describing its capacity for absorbing
heat.
subcooling The amount of heat removed from the liquid refrigerant after it
has completely condensed within the condenser.
suction line Pipe that transports refrigerant vapor from the evaporator to the
compressor in a mechanical refrigeration system.
superheat The amount of heat added to the refrigerant vapor after it has
completely vaporized within the evaporator.
ton of refrigeration A measure of the rate of heat flow, defined as a transfer of
12,000 Btu/hr [3.517 kW].
