Operations Optimization of Trigeneration Systems

Optimum dispatch of energy supply systems can result in large savings in industrial facilities. Identifying the configuration of available equipment, and its loading, to minimize total energy consumption to satisfy given load demands has very high payback potential.

This paper discusses an optimization approach to determi1:ze the optimum equipment load dispatch to simultaneously satisfy given power, process steam and additional "end energy" needs such as compressed fluids, etc.

Techniques applied to power generation and industrial cogeneration are extended to solving this trigeneration problem where the optimum dispatch ofthefinal load devices (i.e. compressors, fans, pumps, etc.) are an integral part of the total energy system optimization.

Example industrial trigeneration systems are analyzed and discussed to illustrate the application. The methods of considering alternate energy sources, such as purchased power vs. internal power and steam generation are included.