... transfer, subscripts F and P indicate system fuel and system product, respectively, NK is the number of system components, and NP and NF are the numbers of system products and fuels, respectively. ... main, secondary, and remainder, and to define main decision variables subgroups associated with the main and secondary components. The subgroups may have common decision variables, and their sizes ... descriptions of the decision variables, the denominations used, and their minimum and maximum allowable values. In problem OP11, in addition to the evident consideration of the turbines and HRSGs, some decision...