Introduction to a Cogeneration Supercritical Water Desalination Plant Model in Aspen HYSYS

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This video presents a Cogeneration Supercritical Water Desalination Plant model in Aspen HYSYS represents an integrated system that simultaneously produces electric power and fresh water using supercritical water (SCW) as the working medium.

In this model, supercritical water—water at conditions above its critical point (374 °C, 22.1 MPa)—is used for both power generation and thermal desalination. The cogeneration setup couples a supercritical Rankine cycle steam turbine and Brayton cycle gas turbine for electricity production with a supercritical desalination unit, driven by waste heat from the turbine exhaust.

Using Aspen HYSYS Non-Random Two Liquid Model NRTL, Fortran subroutine based VLE model for supercritical seawater, Aspen HYSYS Active Server:

Thermodynamic behavior of supercritical steam, brine and water across turbines, heat exchangers, and condensers.

Energy integration, maximizing thermal efficiency by recovering low-grade heat for desalination.

Performance metrics such as plant efficiency, water recovery rate, specific energy consumption, energy and exergy efficiencies, levelized cost of production, economic metrices etc.

This approach demonstrates how cogeneration power plant can enhance sustainability and energy efficiency in integrated power–water production systems.

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Видео Introduction to a Cogeneration Supercritical Water Desalination Plant Model in Aspen HYSYS канала Nubyira Process Designers