A43 -- Supervisory Control Strategies and Optimization (SI)

Computerized building and energy management and control systems provide a variety of effective ways to reduce utility costs and energy consumption associated with maintaining environmental conditions and thermal comfort in buildings. These systems can incorporate advanced control strategies that respond to inputs including changing weather, building conditions, occupancy levels and utility rates to minimize operating costs, energy consumption and greenhouse gas emissions while also enhancing occupant comfort. This chapter focuses on the opportunities and control strategies associated with using supervisory control strategies and optimization methods applied to cooling systems, heating systems, air-handling units, and zone equipment. TERMINOLOGY METHODS Control Variables Supervisory Control Strategies Static Optimization Dynamic Optimization CONTROL STRATEGIES AND OPTIMIZATION Control Strategies for Cooling Tower Fans Chilled-Water Reset with Fixed-Speed Pumping Chilled-Water Reset with Variable-Speed Pumping Sequencing and Loading Multiple Chillers Simplified Static Optimization of Cooling Plants Dynamic Optimization for Cooling Using Discrete Storage Forecasting Diurnal Cooling and Whole-Building Demand Profiles Predictive HVAC Control Strategies Control Strategies for Heating Systems Control Strategies for Air-Handling Units Control Strategies for Building Zones