An optimization model for the application of an integrated cogeneration-thermal energy storage system

Abstract

Cogene stion and Thermal Energy Storage (TES) systems have been successfully applied in industrial, institutional and commercial facilities throughout the United States. Both of these are proven technologies offering attractive rates of return on initial investments in most cases. In the past, cogeneration and TES were generally viewed as mutually exclusive system alternatives. However, the application of both TES and cogeneration in a coordinated system can result in exceptional savings in most cases.

Cost minimization for a local utility through CHP, heat storage and load management

“…The optimal storage control strategy is derived form a plot of the marginal storage content value in a diagram with storage levels at different occasions obtained from the optimizations. Martyak and Devgan (1991) outline a costminimization method for the electricity, heat and cooling supply of a building with cogeneration and cold-water storage. The waste heat from the cogeneration engine produces steam which either heats the building or yields chilled water by means of absorption refrigeration.…”

Optimal Sizing for a Gas-Fired Grid-Connected Cogeneration System Planning

“…In most proposed works, equipments are modeled based on their performance characteristics [4], [5], [7], [8], [10], [11]. A very detailed model has been suggested, which resulted in 1275 variables and equations.…”

“…Generally, there are numerous forms of configuration depending on the site requirements and conditions. Package boiler, duct burner, electric chiller, thermal storage system, and absorption chillers are being included in some of the cogeneration configurations [1]- [5], [7], [8], [10], [11]. Deciding on the cogeneration configuration depends largely on the site conditions and requirements.…”