Radiators

Radiators:-
Radiators are heat exchangers used to transfer thermal
energy from one medium to another for the purpose of
cooling and heating. The majority of radiators are
constructed to function
in automobiles , buildings , and electronics . The radiator is
always a source of heat to its environment, although this
may be for either the purpose of heating this environment, or
for cooling the fluid or coolant supplied to it, as for engine
cooling . Despite the name, radiators generally transfer the
bulk of their heat via convection, not by thermal radiation.