Page 16 - PNEUMATIC AND HYDRAULIC

1.2.1 Air Cool

i. Air cooling is a method of dissipating heat (convection).
ii. It works by making the object to be cooled have a larger surface area (fins)

or have an increased flow of air over its surface, or both.
iii. using a fan blowing air onto fins. In many cases the addition of fins adds to

the total surface area making a heatsink that makes for greater efficiency in

cooling.

Figure 1.8: Air cooling principle of heat removal.

1.2.2 Water Cool.

i. Water cooling is a method of heat removal.
ii. As opposed to air cooling, water is used as the heat conductor.

iii. The main mechanism for water cooling is convective heat transfer

Figure 1.9: Water cooling principle of heat removal

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