... 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. ... function OF is the same, and the process steam and process hot water demands are assumed constant. Here, the larger problem OP11 is considered for both mathematical optimization and exergoeconomic ... used, and their minimum and maximum allowable values. In problem OP11, in addition to the evident consideration of the turbines and HRSGs, some decision variables associated with the condenser and...