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AssigneeNational University of Singapore
InventorsChandra Sekhar, Kwok Wai Tham, David Kok Wai Cheong, Nyuk Hien Wong
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An HVAC system has two variable-air-volume (VAV) systems, a first VAV system for moving fresh air and a second VAV system for moving recycled air. Both the fresh air and recycled air are cooled and dehumidified by a single heat-exchanging coil. The fresh and recycled air streams travel independently in separate ducts until the air streams reach a remotely located mixing box where the air streams mix and ventilate into a room or zone of a building. The HVAC system uses carbon dioxide and temperature sensors in order to regulate the flow of fresh and recycled air to various mixing boxes throughout the building.
A ventilation and air-conditioning system for energy-efficient conditioning of independent fresh and recycled air streams, said system comprising:
An air-handling unit for use in a heating, ventilation and air-conditioning system, said air-handling unit comprising a first conditioning system for conditioning and moving a volume of fresh air through a first duct and a second conditioning system for conditioning and moving a volume of recycled air through a second duct, said first conditioning system and said second conditioning system sharing a single common heat-exchanging coil.
Dependencies are inferred from the claim text.