Reducing the energyconsumption of a conference centre—a case studyusing software

E/cient HVAC control is often the most cost-e3ective option to improve the energye/ciencyof a building. However, the e3ect of changing the control strategy(i.e. on indoor comfort and energyconsumption) is usuallydi/cult to predict. To obtain this information more easily, a new simulation tool, QUICKcontrol, was developed. This new tool was then used to investigate the energy savings potential in a Conference Centre. The in9uences of fan scheduling, setpoint setback, economiser cycle, new setpoints, fan control, heating plant control, lighting control and various combinations thereof was investigated. The simulation models were ;rstlyveri;ed with measurements obtained from the existing system to con;rm their accuracy for realistic control retro;t simulations. With the aid of the integrated simulation tool it was possible to predict savings of 744 MWh per year (32% building energy saving and 58% HVAC system energy saving) by implementing these control strategies. These control strategies can be implemented in the building with a direct payback period of less than 6 months