Enclosure with metered air ducts for mounting and cooling modules

An enclosure assembly for housing and cooling modules, comprising:

• a. a pair of laterally spaced side walls and at least one common wall between said side walls, said side walls and said common wall having front ends, back ends, and upper ends, said enclosure being open between each side wall and said at least one common wall at said front ends of each and being closed at said back ends of each, each side wall and said at least one common wall having laterally spaced wall sections defining an air duct within the wall, the respective air ducts opening through said upper ends of said side walls and said at least one common wall;
• b. an enclosure structure enclosing said upper ends of said side walls and said at least one common wall and forming an air plenum therewithin communicating with said air ducts;
• c. wall sections of the side walls within said enclosure and both wall sections of said at least one common wall having each metered air passages therethrough providing communication with said air ducts thereat;
• d. modules disposed between and mounted to adjacent surfaces of said side walls and said at least one common wall, each module having an entrance air passage at one end thereof at said open end of said enclosure and an exhaust air passage on opposite sides of said each module at locations removed from said entrance air passage, each said exhaust air passage being aligned with a metered air passage in an adjacent wall section.