Implementation of energy conservation in a commercial building using BEM and sub-metering technology

4th Asia Conference of International Building Performance Simulation Association

土木建筑工程

Wang, Chao^1^2 ; Chen, Zhenqian^3 ; Tian, Zhichao^1^2 ; Wu, Yue^1^2 ; Shi, Xing^1^2

Key Laboratory of Urban and Architectural Heritage Conservation, Ministry of Educational, Nanjing

210096, China^1

School of Architecture, Southeast University, Nanjing

210096, China^2

School of Energy and Environment, Southeast University, Nanjing

210096, China^3

关键词: Building energy managements;    Building energy model;    Commercial building;    Metering technology;    Operational energy;    Operational loads;    Set-point temperatures;    Temperature differences;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/238/1/012003/pdf
DOI  :  10.1088/1755-1315/238/1/012003

学科分类：土木及结构工程学

来源: IOP

【 摘 要 】

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.