Implementation of energy conservation in a commercial building using BEM and sub-metering technology. (February 2019)

• Record Type: Journal Article
• Authors: Wang, Chao; Chen, Zhenqian; Tian, Zhichao; Wu, Yue; Shi, Xing
• Is Part Of: IOP conference series. Volume 238(2019)
• Publication Date: 2019-02
• Subjects: Earth sciences -- Periodicals; Environmental sciences -- Congresses; Environmental sciences -- Periodicals; 550.5
• DOI: 10.1088/1755-1315/238/1/012003
• Languages: English
• ISSNs: 1755-1307

Abstract

Abstract: In the whole life cycle of buildings, proper building energy management is important to achieve energy efficiency. In this research, Building Energy Model (BEM) was used to analyze the energy consumption of a hotel building. The BEM of the building with information of the HVAC system was established to simulate the energy consumption. The performance of the HVAC system was measured using the sub-metering technology. The comparison between the simulation results and the measured performance revealed several problems of the HVAC system in operation, including unreasonable setpoint temperature of the chilled water and a small temperature difference between the supplied and returned chilled water. The BEM was adjusted to take into account the real operational load. Finally, an optimal setpoint temperature schedule of the chilled water was proposed to reduce the operational energy consumption of the HVAC system.