NESTED DUCT AIR CIRCULATION SYSTEM

摘要

An air circulation and conditioning system for a building in which the supply and return ducts are coincident and vent to a room so as to form air circulation in the room including an upward return air current surrounded by a downward supply current. An array of vents may be provided, each with a return duct opening and supply duct opening to create multiple air currents in the room. A wireway may be provided for co-locating electronics and communications network along the ductwork. A modular design air handling unit with multiple compatible modules providing different air treatment, purification, and monitoring functions may be provided. A method for retrofitting an existing single duct system into a dual duct system is provided.

主权项

1. An apparatus for supplying air to a room in a building and returning air from the room to a motive source of air circulation, comprising:
supply ductwork for carrying a flow of supply air from the source to the room; return ductwork for carrying a flow of return air from the room; at least one supply opening in the supply ductwork, said supply opening at an elevation above the floor of the room and laterally inward from the walls of the room for allowing passage of air from the supply ductwork in a downward direction to the room; at least one return opening in the return ductwork, said return opening at an elevation above the floor of the room and laterally inward from the walls of the room for allowing passage of air from the room in an upward direction to the return ductwork; wherein at least one of said at least one return opening is centrally disposed to at least one of said at least one supply opening so that a flow of supply air and flow of return air will cause an air flow pattern within the room in which supply air flows downward from the supply ductwork and return air flows upward to the return ductwork interior of the downward supply flow.