The Griffin Open Systems™ Toolkit (Griffin) can be used to model a combustion process in a power plant, reading in values of air and fuel flow, along with reading for temperature and pressure for the combustion gases and water/steam points, it may use a model component to train a model the resulting Heat Rate, NOx and CO emissions. The model may be constrained by Min/Max values calculated by Griffin using logic set up by an engineer. Goals may be entered by the user, fed in from the control system or dynamically calculated by the Griffin. These goals in turn would feed an optimizer element the user selects in the Griffin to determine the optimum control settings which are then feedback to the DCS.
The Griffin Open Systems™ Toolkit does not have limits on number of simultaneous applications; it allows a hierarchy of applications to be build. For example, it may have models for optimizing the settings on the mills grinding the coal, for belts blending coal, for distribution of ammonia to a Selective Catalytic Converter (SCR), adjusting pumps on/off for a Flue Gas Desulpurization (FGD) system, and the power setting on a precipitator. Each of the applications may communicate results and data with each other either in parallel or up or down the optimization chain, for the purpose of achieving the overall plant operation goals. Several different control systems may be involved. For example, the fuel yard may have PLC’s, the combustion process a DCS, and the FGD another set of PLC’s. All of these could be controlled by the Griffin in a user configured application.