CONCEPTUAL OPTIMIZATION OF UTILITY NETWORKS FOR OPERATIONAL VARIATIONS - II - NETWORK DEVELOPMENT AND OPTIMIZATION

The paper proposes a new approach for the optimisation of utility netw orks. The approach makes use of the targeting and conceptual developme nts presented in Part I, and the available knowledge is exploited to a ccomplish a decomposition scheme that accommodates for both simple and complex units. The decomposition establishes a common modelling basis , and provides for variable efficiencies in the operation of the steam turbines. Its principles are exploited to set up a network superstruc ture that is comprised by a managable number of generic elements. The units are developed to take into account operational variations agains t which the optimisation objectives determine the component sets that need be used. As a result of the insights thrown into the formulation and the targeting models used, the optimisation effort is simply facil itated by a Mixed Integer Linear Programming formulation whose applica tion is illustrated with several examples and an industrial case study . (C) 1998 Published by Elsevier Science Ltd. Ail rights reserved.