Please use this identifier to cite or link to this item: http://scholarbank.nus.edu.sg/handle/10635/32666
Title: Energy-efficient variable-air-volume (VAV) system with zonal ventilation control
Authors: SEKHAR, CHANDRA 
THAM, KWOK WAI 
CHEONG, DAVID KOK WAI 
WONG, NYUK HIEN 
Issue Date: 2-Mar-2004
Source: SEKHAR, CHANDRA,THAM, KWOK WAI,CHEONG, DAVID KOK WAI,WONG, NYUK HIEN (2004-03-02). Energy-efficient variable-air-volume (VAV) system with zonal ventilation control. ScholarBank@NUS Repository.
Abstract: A ventilation and air-conditioning system uses a first variable-air-volume system to cool and dehumidify fresh outside air and deliver it through a first duct to a mixing box located downstream. The system also uses a second variable-air-volume system to further cool and dehumidify recycled air and deliver it through a second duct to the mixing box where the fresh and recycled air are able to mix prior to ventilation into a room or office. The system uses a carbon dioxide sensor and a temperature sensor to provide feedback signals to a control system, which in turn regulates fan speeds and damper openings in order to provide optimal cooling and ventilation and to conserve energy when cooling and ventilation requirements are low.
URI: http://scholarbank.nus.edu.sg/handle/10635/32666
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