The auto radiator works as a heat exchanger in the car which cools the internal combustion engine. It is an automotive component which designed in such a way that it transfers heat from the hot coolant to the air blown from it by a fan. Most of the cars these days use aluminum radiators. The coolant flows from the inlet via tubes mounted. The fins of the radiator conduct heat from the tubes and transfer it to the flowing air via the radiator. It is amongst the important automotive components in engine cooling system.
The internal combustion engine is cooled as a result of circulating coolant via engine block where it is heated and then via the radiator, where loses heat to the atmosphere and comes backs to the engine. The coolant is basically water based, sometimes it can be an oil as well.