Optimizing Efficiency with Multiboiler Systems - Heat when it's needed, energy savings when it's not

摘要

With the current strong emphasis on energy conservation, there is a great deal of interest not only in selecting the most energy-efficient products, but properly applying them to obtain the greatest energy savings. Multiple-boiler systems are very helpful in achieving this goal. Multiple-boiler systems can be optimized with the selection of low- mass boilers, primary/secondary pumping, variable flow, and hybrid boiler systems. One of the more significant advantages of multiple-boiler systems is the fact that only the required capacity need be online at a given time. Peak heating-season loads occur a very small percentage of the time-typically, 5 percent or less. The rest of the time, the load is less than peak, and most of the time the load is less than 50 percent. Thus, if we use a four-boiler system as an example, one or two boilers will carry the load for most of the season.