Process optimization and revamping of combined-cycle heat and power plants integrated with thermal desalination processes

Juan I. Manassaldi, Miguel C. Mussati, Nicolás J. Scenna, Tatiana Morosuk and Sergio F. Mussati

Energy, 2021, vol. 233, issue C

Abstract: Optimal revamping, sizing, and operation of an existing gas-turbine combined-cycle dual-purpose power/desalination plant – simultaneous electricity and freshwater generation – which operates with a heat recovery steam generation with one-pressure level (1P-HRSG) and a multi-stage flash desalination process, is addressed. The sizes and configurations of the gas turbine and desalination unit are kept the same as in the existing plant through the study. However, the 1P-HRSG is conveniently extended to two- or three-pressure levels with different exchanger arrangements, including steam reheating. To this end, a superstructure-based representation of the HRSG simultaneously embedding several candidate structures was proposed and a mixed-integer nonlinear programming model was derived from it.

Keywords: Dual-purpose desalination plant; Three pressure HRSG; Multi-stage flash desalination; Superstructure; MINLP mathematical Model; GAMS (search for similar items in EconPapers)
Date: 2021
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (2)

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Persistent link: https://EconPapers.repec.org/RePEc:eee:energy:v:233:y:2021:i:c:s0360544221013797

DOI: 10.1016/j.energy.2021.121131

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