Plenum system


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plenum system

[′plen·əm ‚sis·təm]
(mechanical engineering)
A heating or air conditioning system in which air is forced through a plenum chamber for distribution to ducts.

Plenum system

A method of heating or air conditioning whereby the air forced into the building is at a pressure slightly above atmospheric.
References in periodicals archive ?
Figure 1 shows an electrical circuit analog of airflow in a plenum system with one CRAC, one 25% tile, and one 56% tile.
Once the preferred wire distribution system (with a 30 percent hold in the market at one time, according to sources), cellular floors have lost ground in the past eight years -- as have access floors -- to other distribution systems: namely poke-throughs in a ceiling plenum system.
It features simple programmability, two-arm spray articulation, high-precision photo diodes to minimize overspray, and patented coatings recovery and Airsphere plenum systems.
The approach meets an important need since the plane wave cutoff frequency is quite low for duct and plenum systems.
Further work should entail validation of the approach for more complicated duct and plenum systems.
Ultra clean air delivery units, air handling units, modular barrier wall systems, and fan powered plenum systems from SBB.
Heat transfer patterns in open plenum systems differ from those of ducted systems.