Cogeneration System Design Optimization

Cogeneration system design deals with several parameters in the synthesis phase, where not only a thermal cycle must be indicated but the general arrangement, type, capacity and number of machines need to be defined. This problem is not trivial because many parameters are considered as goals in the project. An optimization technique that considers costs and revenues, reliability, pollutant emissions and exergetic efficiency as goals to be reached in the synthesis phase of a cogeneration system design process is presented. A discussion of appropriated values and the results for a pulp and paper plant integration to a cogeneration system are shown in order to illustrate the proposed methodology.184330337Ahuja, R.K., (1993) Network Flows, , Prentice Hall, N. Jersey (USA)Balestieri, J.A.P., (1994) "Planning Cogeneration Systems: A Multiobjective Approach" (in Portuguese), , Ph.D. Thesis, State University of Campinas (UNICAMP), Campinas, SP, BrazilBalestieri, J.A.P., Correia, P.B., Planning Cogeneration Systems: A Multiobjective Expansion Analysis (1994) Florence World Energy Research Symposium (FLOWERS), Proceedings, pp. 1025-1032. , Florence, ItalyBoehm, R.F., (1987) Design Analysis of Thermal Systems, , John Wiley, N.Y, USACorreia, P.B., (1989) "A Sectorial Model for Energy Supply Optimization" (In Portuguese), , Ph. D. Thesis, State University of Campinas (UNICAMP), Campinas, SP, BrazilEhmke, H.J., Size Optimization for Cogeneration Units (1990) Energy, 15, pp. 35-44Glover, F., Generalized Network: A Fundamental Computer-based Planning Tool (1978) Manag. Sci., 24, pp. 1209-1220Nath, R., Joint Optimization of Process Units and Utility System (1986) Chem. Eng. Progress., 82, pp. 31-38Puttgen, H.B., MacGregor, P.R., Optimum Scheduling Procedure for Cogeneration Small Power Producing facilities (1989) IEEE Trans. PAS, 4, pp. 957-963Steuer, R.F., (1996) Multiple Criteria Optimization, , John Wiley, SingaporeSullivan, R.L., (1977) Power System Planning, , McGraw-Hill, N.Y., USAStambler, I., EPRI Seeks Dramatic Gains in Maintenability and Reliability (1989) Gas Turb. World, 19, pp. 15-2