Abstract

Approximately two thirds of the world’s energy consumption is wasted

as heat. In an attempt to reduce heat losses, heat exchangers are

utilized to recover some of the energy. The radiator is one of these

heat exchangers.

This project deals with the examination of a car radiator and to study

it in the heat transfer point of view. Pressure drop of air and engine

coolant as well as rate of heat transfer for specific flow rates of air

and engine coolant were calculated and tabulated

Conclusion

As we can see that the radiators is a heat exchanger that exchange heat with

air using tubes containing an engine coolant whether pure water or a mix.

This exchange was enhanced by the presence of fins and also by the

presence of a metal inside the tubes that makes the flow rates turbulent and

increases the heat transfer coefficient.

Radiator are very important heat exchangers, If anything goes wrong with
the radiator itself, such as a leak or broken hose, the operating temperature
of the car can reach a dangerous level within minutes. The engine must be
allowed to cool down naturally before the vehicle can be driven safely to a
mechanic.