Radiators are important, essential components in hot water (or steam) heating systems. The hot water is cooled in the radiator (or the steam is condensed in the radiator) to supply heat to the room for heating purposes. The metal consumption and cost of the radiator occupy a considerable proportion in the heating system. Therefore, the correct selection of the radiator involves the economic indicators and operating effects of the system.

Thermal performance

The higher the heat transfer coefficient of the same material heat sink, the better the thermal performance. It can increase the heat dissipation area of the outer wall (with wings (ribs)), increase the flow speed of the air around the radiator (such as steel string radiators), and strengthen the radiation intensity of the outer surface of the radiator (such as the outer surface with emissivity) High coatings) and measures to reduce the thermal resistance of the heat sink by measures such as contact heat resistance between the various parts of the heat sink (such as the steel tube and string of steel string radiators).