System that extracts heat from a machine and ejects it to the surrounding world.
Air passes over cooling fins to remove the heat from the system.
- no radiator or pump and so lighter system
- no leakages
- can operate in cold climates
- less efficient
- needs a good airflow
Water passes through the system or through a water cooling jack, this is then sent to a radiator where air is passed over the radiator to remove the heat from the water before it is sent back to the system to be cooled.
- uniform cooling can be achieved
- system can be packaged away from airflow
- can be used to reduce system noise as a water jacket provides damping
- coolant system can provide a considerable heat buffer
- water pumping absorbs energy
- coolant leakage can cause damage
- antifreeze needed to allow operation in cold environments