Some of the 50 airlines serving at this airport are Northwest Airlines, Midwest Airlines, Air Canada, Delta Airlines, American Airlines, Southwest Airlines, JetBlue Airlines, Continental Airlines, United Airlines, Air tran Airways, and USA 3000.
A plenum chamber is a pressurised housing containing a gas or fluid (typically air) at positive pressure (pressure higher than surroundings).hese gave rise to the notion of 17th century 'plenum' as the opposite of vacuum, and all things being either Plenum or Vacuum. By the 19th century, the development of mechanical fans and industrial machinery had provided another, more technical use.
Definition of Plenum in Construction. A plenum is a space designated for air flow or can describe a space devoted to mechanical, electrical or sprinkler lines. The term plenum, could be a large section of ductwork, or the upper space above a ceiling. Any large space designated for any type of air flow or routing of systems, can be called a plenum. The space providing air is called a supply plenum and the space providing air return is referred to as a return plenum.