Search results
Results From The WOW.Com Content Network
In all such cases, discovery, and repair of such problems to eliminate unintended plenums is difficult due to the hidden nature, limited space, and difficult access of most installed drop ceilings. For highest fire safety, it is best to assume all drop-ceiling and raised-floor airspaces are plenums, whether or not they are officially designated ...
Plenum may refer to: . Plenum chamber, a chamber intended to contain air, gas, or liquid at positive pressure; Plenism, or Horror vacui the concept that "nature abhors a vacuum"
A plenum chamber is a pressurised housing containing a fluid (typically air) at positive pressure.One of its functions is to equalise pressure for more even distribution, compensating for irregular supply or demand.
The fourth and sixth plenums generally centre on party ideology. In recent decades, the third plenum has focused on long-term economic reforms, while the fifth plenum is associated with ...
Plenums are important events on China's political calendar that require the attendance of all of the party's central committee, comprising 205 members and 171 alternate members with President Xi ...
Air streams are mixed to save energy and improve energy efficiency by partially recirculating conditioned air.. The most common application for an air-mixing plenum is the mixing of return air (or extract air) with fresh air to provide a supply air mixture for onward distribution to the building or area which the ventilation system is serving. [1]
Plenum cable / ˈ p l ɛ n əm / is electrical cable that is laid in the plenum spaces of buildings. In the United States, plastics used in the construction of plenum cable are regulated under the National Fire Protection Association standard NFPA 90A: Standard for the Installation of Air Conditioning and Ventilating Systems.
Leakage in UFAD supply plenums can be a major cause for inefficiency in a UFAD system. There are two types of leakage—leakage into the space and leakage into pathways that bypass the space. The first category of leakage does not result in an energy penalty because air is getting to the zone it is intended to cool.