APPLICATION OF A DEMAND CONTROL VENTILATION AT CITDS BUILDING FOR ENERGY SAVING AND INDOOR AIR QUALITY CONTROL

• Main Author: ENYLINE ANAK BUJANG, -
• Format: Final Year Project Report
• Language: English; English
• Published: Universiti Malaysia Sarawak 2022
• Subjects: TP Chemical technology
• Online Access: http://ir.unimas.my/id/eprint/39324/1/FYP_Enyline%20Bujang%20-%2024pages.pdf; http://ir.unimas.my/id/eprint/39324/5/Enyline%20Bujang%20ft.pdf; http://ir.unimas.my/id/eprint/39324/

Excessive usage of heating, ventilation and air-conditioning (HVAC) systems in buildings without proper mitigation contributes to incredibly high energy consumption in buildings, while emitting outrageous amounts of greenhouse gas (GHG) to the atmosphere. Besides, the GHG emissions subsequently promote adverse health effects on human being. On the other hand, the building occupants would be badly affected due to poor indoor air quality (IAQ), and the excessive usage of HVAC system since it is not designed to fulfil the requirements of thermal comfort of building occupants. An office building, for example, consumes high energy due to the HVAC system, which offers the opportunity to be studied. Therefore, an office located at the Centre for Information Technology (IT) Development and Services, CITDS, UNIMAS was chosen as the case study. Demand control ventilation (DCV) system has been proposed to be applied to the existing HVAC system by utilising Carrier’s HAP simulation software. Carrier HAP is well known for its great advantages, especially in designing ventilation and DCV system into the existing HVAC system either for industrial or commercial buildings. The simulation was conducted with in depth analysis in compliance with the objectives. Result shows that the application of the DCV system feasibly reduced precisely 42.81% of the overall energy consumption and GHG emissions to the atmosphere whilst complying with the recommended limit set by ANSI/ASHRAE Standard 62 for indoor air quality control. In this regard, the DCV system application is efficiently designed for the CITDS building HVAC system. Correspondingly, it is discovered that optimum thermal comfort is obtained while simultaneously satisfying the recommended range and limit recommended by MS:1525.