Question

why the radiators of cars are painted black?

Answer 1

Black surfaces are the most effective heat absorbers and emitters. Radiators are heat exchangers that are used to cool engines. To keep the engines cool, they are coated with carbon black or aluminium . Because dark absorbs more heat than light, but light does not.

Radiators are heat exchangers that are used to transmit thermal energy from one medium to another for cooling and heating purposes. The vast majority of radiators are designed to work in automobiles, buildings, and electronics. [requires citation]

A radiator is always a source of heat to its surroundings, whether for the purpose of heating or cooling the fluid or coolant provided to it, as is the case with vehicle engine cooling and HVAC dry cooling towers. Despite their name, most radiators transmit heat by convection rather than thermal radiation.

Answer 2

The radiators of cars are painted black:

• As we know that the Black surfaces are the most effective heat absorbers and emitters. Radiators are heat exchangers that are used to cool engines.
• To keep the engines cool, they are coated with carbon black or aluminum. Because dark absorbs more heat than light, but light does not.
• we know that Radiators are heat exchangers that are used to transmit thermal energy from one medium to another for cooling and heating purposes.
• then The vast majority of radiators are designed to work in automobiles, buildings, and electronics.
• And A radiator is always a source of heat to its surroundings, whether for the purpose of heating or cooling the fluid or coolant provided to it, as is the case with vehicle engine cooling and HVAC dry cooling towers.
• As we also know that the Despite their name, most radiators transmit heat by convection rather than thermal radiation.