Heater and Air Conditioner Wall Unit in Lewiston – What Is Convection Cooling?
Convection cooling is any transfer of heat that occurs from a movement of fluid. Both liquids and gases can exhibit convection cooling, and the effect can be natural or forced. Natural cooling occurs from heat transfer due to changes in density of the fluid, such as hot air rising and cooler air sinking. Forced convection occurs when any external force is added to move the fluid, such as a fan moving air or a spoon stirring a liquid.
Heat transfer occurs primarily from conduction and convection. Conduction is a transfer of heat through any material, without movement of the material. An example of conduction is a metal pan heated by a flame on a gas stove. The gas flame heats the underside of the pan, and conduction will transfer the heat to the remainder of the pan. When the heat is turned off, convection will cool the pan as heat transfers and rises above to the air around the pan.
Heater and Air Conditioner in Lewiston – Forced Convection Cooling.
Forced cooling is common in homes and businesses. Air conditioning and heating systems used forced air convection to move heat in or out of a building. Fans inside electronic equipment used forced convection cooling to move air over electronic components. Refrigeration systems use fans both to remove heat from the condenser coils, but also to cool the compressor and move air inside the refrigerated compartment.
Heater and Air Conditioner Combo in Lewiston – Cooling Fans.
Cooling fans have demonstrated convection effects for centuries. With the invention of electricity, electric motors could be used to drive tabletop and ceiling fans. Sophisticated ceiling fans containing thermostats to automatically control their functions have been available since the late 20th century. All rely on the same principle of cooling the human body by moving air across the skin.
Mini Split AC in the USA 