Air cooling is a method of dissipating heat. It works by making the object to be cooled have a larger surface area or have an increased flow of air over its surface, or both. An example of the former is to add fins to the surface of the object, either by making them integral or by attaching them tightly to the object's surface (to ensure efficient heat transfer). In the case of the latter it is done by using a fan blowing air into or onto the object one wants to cool. In many cases the addition of fins adds to the total surface area making a heatsink that makes for greater efficiency in cooling.
In all cases, the air has to be cooler than the object or surface from which it is expected to remove heat. This is due to the second law of thermodynamics, which states that heat will only move spontaneously from a hot reservoir (the heat sink) to a cold reservoir (the air).
Read more about Air Cooling: Derating At High Altitude
Other articles related to "air cooling, cooling, air":
... present a difficult mechanical airflow design, power dissipation, and cooling challenge ... Cooling generally uses forced air cooling but heat pipes and the use of the metal chassis or case as a passive heat sink are also common ...
... For more details on water cooling, see water cooling ... Liquid cooling is a highly effective method of removing excess heat, with the most common heat transfer fluid in desktop PCs being water ... The advantages of water cooling over air cooling include water's higher specific heat capacity and thermal conductivity ...
... When operating in an environment with lower air pressure like high altitude or airplane cabins ... The cooling capacity has to be derated compared to that of sea level ... factor that should be multiplied with the cooling capacity in to get the cooling capacity at the specified height over sea level ...
... Examples include CPUs with unlocked multipliers, oversized heatsinks or water cooling, and motherboards with user-configurable voltages and incremental bus speeds ... to this problem, heat sink manufacturers have implemented innovative solutions in air-cooling primarily based on the incorporation of heat pipe technologies coupled with large-finned tower heat sinks ... Watercooling is able to provide dissipation that is superior to air-cooled heatsinks ...
Famous quotes containing the words cooling and/or air:
“So God stepped over to the edge of the world
And He spat out the seven seas;
He batted His eyes, and the lightnings flashed;
He clapped His hands, and the thunders rolled;
And the waters above the earth came down,
The cooling waters came down.”
—James Weldon Johnson (18711938)
“The air is precious to the red man, for all things share the same breaththe beast, the tree, the man, they all share the same breath. The white man does not seem to notice the air he breathes. Like a man dying for many days, he is numb to the stench.”
—Attributed to Seattle (c. 17841866)