Paper Conference

Proceedings of ASim Conference 2016: 3rd Asia conference of IBPSA-China, Japan, Korea


The Energy Optimization of a Large Scale Complex Building by Detailed Data Analysis of Cutting-edge BEMS and Simulation

K. Mitamura, H. Okubo, Y. Shimoda, Y. Tanaka, S. Tanabe

Abstract: This paper presents a case study of data analysis from Building Energy Management System (BEMS) and an examined measures of energy saving. The authors analyze both demand side and supply side systems of a large complex building with cutting-edge BEMS. The fault detection and optimal operations for demand side are established by using the Valuable Air Volume (VAV) and avoiding hunching phenomenon. The methods of energy saving for the supply side are established by changing the chillers control sequence and by changing the cooling water temperature. In order to evaluate the effect of the energy saving, the simulation model of the heat source system in this building is developed. By using the simulation model, the combination of the energy saving measures for the demand side and for the supply side system can be calculated. The simulation results revealed that the combination of the energy saving measures can reduce the building energy consumption by 4.8%.
Keywords: Data analysis, BEMS, Optimal operations