Preprint Article Version 1 This version is not peer-reviewed

A Novel High Vacuum Msf/Med Hybrid Desalination System for Simultaneous Production of Water, Cooling and Electrical Power, Using Two Barometric Ejector Condensers

Francisco Javier Caballero-Talamantes
* ,
Nicolás Velázquez-Limón
* ORCID logo ,
Jesús Armando Aguilar-Jiménez
ORCID logo ,
Cristian Ascención Casares-De la Torre
ORCID logo ,
Ricardo López-Zavala
ORCID logo ,
Juan Ríos-Arriola
ORCID logo ,
Saul Islas-Pereda
ORCID logo
Version 1 : Received: 29 October 2024 / Approved: 29 October 2024 / Online: 29 October 2024 (13:09:55 CET)

How to cite: Caballero-Talamantes, F. J.; Velázquez-Limón, N.; Aguilar-Jiménez, J. A.; Casares-De la Torre, C. A.; López-Zavala, R.; Ríos-Arriola, J.; Islas-Pereda, S. A Novel High Vacuum Msf/Med Hybrid Desalination System for Simultaneous Production of Water, Cooling and Electrical Power, Using Two Barometric Ejector Condensers. Preprints 2024, 2024102309. https://doi.org/10.20944/preprints202410.2309.v1 Caballero-Talamantes, F. J.; Velázquez-Limón, N.; Aguilar-Jiménez, J. A.; Casares-De la Torre, C. A.; López-Zavala, R.; Ríos-Arriola, J.; Islas-Pereda, S. A Novel High Vacuum Msf/Med Hybrid Desalination System for Simultaneous Production of Water, Cooling and Electrical Power, Using Two Barometric Ejector Condensers. Preprints 2024, 2024102309. https://doi.org/10.20944/preprints202410.2309.v1

Abstract

This work presents an innovative tri-generation system for the simultaneous production of desalinated water, electrical energy, and cooling, aimed at addressing the growing challenges of water scarcity and climate change. The system integrates an 8-stage MSF process and a 6-effect MED process, along with an expander-generator that improves cycle efficiency by utilizing and reintroducing steam within the desalination stages. A parametric study was conducted using ASPEN PLUS to evaluate the system’s performance. The analysis showed that the system operates over a broader pressure and temperature range than conventional MED systems, from 28.3 to 0.8 kPa and from 68 to 4°C, thanks to a dual ejector-condensation process. In cogeneration mode, the system achieves a PR of 12.06 and an RR of 54%0.54, producing 67,219.2 L/day of desalinated water and reducing electrical consumption by 12.03%. In tri-generation mode, it achieves a PR of 17.81 and an RR of 0.80%, with a cooling capacity of 1225 kW (COP of 3.278), producing 99,273.6 L/day of desalinated water while reducing electrical consumption by 3.69%. This system offers an efficient solution to meet the growing water and energy needs of coastal communities, combining water desalination, energy production, and cooling in a single integrated process.

Keywords

Barometric condensation; Cooling; Desalination; Ejector; Expander; High vacuum; MED; MSF; Power

Subject

Engineering, Chemical Engineering

Copyright: This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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