What is the function of the engine radiator?

[CamilaFitz]

The car radiator, also known as the heat exchanger, is a key component in the automobile cooling system. As an essential part of a water-cooled engine's heat dissipation circuit, the radiator absorbs heat from the engine block. Radiator working principle: The radiator is a vital component of water-cooled engines, serving as a major element in the engine's heat dissipation circuit. It absorbs heat from the engine block to prevent overheating. Due to water's high specific heat capacity, its temperature doesn't rise significantly after absorbing engine heat. The engine's thermal energy is transferred through the liquid cooling circuit using water as the heat transfer medium, then dissipated through large-area cooling fins via convection to maintain optimal engine operating temperature. Method for checking pipe blockage: Fill the radiator with water and secure the cap. Start the engine. Pinch the return hose halfway with one hand while revving the engine with the other. If the hose shows suction when engine speed increases, the radiator is functioning properly. Otherwise, it indicates blockage. This method also works for testing the water pump when the radiator is in good condition.