Geothermal electricity generation and desalination: an integrated process design to conserve latent heat with operational improvements

Missimer, Thomas M., Choon Ng, Kim, Thuw, Kyaw and Shahzad, Muhammad Wakil (2016) Geothermal electricity generation and desalination: an integrated process design to conserve latent heat with operational improvements. Desalination and Water Treatment, 57 (48-49). pp. 23110-23118. ISSN 1944-3994

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Official URL: https://doi.org/10.1080/19443994.2016.1144693

Abstract

A new process combination is proposed to link geothermal electricity generation with desalination. The concept involves maximizing the utilization of harvested latent heat by passing the turbine exhaust steam into a multiple effect distillation system and then into an adsorption desalination system. Processes are fully integrated to produce electricity, desalted water for consumer consumption, and make-up water for the geothermal extraction system. Further improvements in operational efficiency are achieved by adding a seawater reverse osmosis system to the site to utilize some of the generated electricity and using on-site aquifer storage and recovery to maximize water production with tailoring of seasonal capacity requirements and to meet facility maintenance requirements. The concept proposed conserves geothermally harvested latent heat and maximizes the economics of geothermal energy development. Development of a fully renewable energy electric generation-desalination-aquifer storage campus is introduced within the framework of geothermal energy development.

Item Type: Article
Uncontrolled Keywords: Adsorption desalination, Aquifer storage and recovery, Geothermal energy electricity generation, Multiple effect distillation, Seawater reverse osmosis desalination
Subjects: H600 Electronic and Electrical Engineering
H800 Chemical, Process and Energy Engineering
Department: Faculties > Engineering and Environment > Mechanical and Construction Engineering
Depositing User: John Coen
Date Deposited: 25 Feb 2020 12:00
Last Modified: 25 Feb 2020 12:00
URI: http://nrl.northumbria.ac.uk/id/eprint/42211

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