Some cars, especially diesel cars, are equipped with a turbo charger in order to increase the performance of the motor. In order to cool the air, a special heat exchanger called Charge Air Cooler is needed.
Hydro aluminium tubes & products that can be used in this application:
- Multi Port Extruded tubes
- Welded Tubes
The performance is increased by adding extra oxygen to the combustion process.
The exhaust gas is led into a turbine
driving a compressor:
- The compressor sucks in air and increases pressure and thereby temperature
- The air is cooled in a charge air cooler (CAC) and let into the engine.
Cooling is needed:
- 180ºC is not good for the motor
- Colder air leads to higher efficiency of the motor as colder air has a higher density resulting in increasing amount of oxygen.
- Therefore a charge air cooler (CAC) is used
The charge air cooler (CAC) is a slightly different heat exchanger as the fluid is air. Due to the low heat transfer coefficient between air and surface, a large internal surface is needed in the tubes. Therefore, welded aluminium tubes (large rectangular or flat-oval tubes)with inserts or large Multi Port Extruded tubes with internal webs are used for this type of heat exchangers.
