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Basics of thermal management in enclosures

04May

To prevent the premature failure of equipment within an electrical enclosure, thermal management is key. There are two ways of cooling an enclosure: by natural convection and forced convection.

Natural convection

When natural convection is used for an enclosure, cool air will naturally flow through the bottom, making the heat rise and then flow out of the top. This is a very slow and gradual process and cannot be controlled, which means it is a risky choice for the components inside.

Forced convection

Forced convection uses the same principle, but with help from a fan filter unit to help draw cool air in and blow hot air out (as well as cooling the air within). By using a fan filter unit, you are also protecting your equipment against splashes and dust. An air conditioner can also be used, depending on the equipment’s cooling needs.

Read the full article in the May issue of PBSI