Co-generation power desalting plants: new outlook with gas turbines

Co-generation power desalting plants: new outlook with gas turbines

Kuwait is using only MSF desalting system coupled to steam turbines to desalt seawater. There is shortage in desalting capacity, and 180 MIGD desalting units have to be installed within 5 years. Meanwhile there are not enough operating steam turbines to supply steam to desalting units if MSF units a...

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Bibliographic Details
Published in:Desalination Vol. 161; no. 1; pp. 1 - 12
Main Authors: Darwish, M.A., A1 Najem, Najem
Format: Journal Article
Language:English
Published: Amsterdam Elsevier B.V 05-02-2004
Elsevier
Subjects:
Applied sciences
Chemical engineering
Cogeneration power desalting plants
Combined cycles
Consumed energy
Drinking water and swimming-pool water. Desalination
Exact sciences and technology
Gas turbines
Membrane separation (reverse osmosis, dialysis...)
Multi effect desalting system
Multi stage flash desalting system
Pollution
Reverse osmosis
Steam turbines
Thermal vapor compression
Water treatment and pollution
Kuwait
Consumed energy
Cogeneration power desalting plants
Gas turbines
Multi stage flash desalting system
Thermal vapor compression
Combined cycles
Multi effect desalting system
Reverse osmosis
Steam turbines
Membrane separation
Cogeneration
Desalination
Planning
Gas turbine
Water vapor
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Summary:Kuwait is using only MSF desalting system coupled to steam turbines to desalt seawater. There is shortage in desalting capacity, and 180 MIGD desalting units have to be installed within 5 years. Meanwhile there are not enough operating steam turbines to supply steam to desalting units if MSF units are chosen. At the same time there are peak load gas turbines (GT) that are usually operated for very short times, only 16 h in the year 2001 as example. Also Kuwait is planning to have 400-MW total capacity GT just to be operated at peak load. These GT can be used to operate reverse osmosis (RO) desalting system, when not needed to carry load. Other desalting types can be added, beside the RO system, to produce water more efficiently, energy wise than the presently used method. Forming combined gas/steam cycles by adding steam turbines to these GT increases the installed power capacity, efficiency of power production, and ability to produce more water. This paper presents some variants of combining GT with desalting systems. These variants use standard, well-proven type and reliable equipment, besides being more energy efficient compared to MSF units combined with stearn turbines.
Bibliography:ObjectType-Article-1
SourceType-Scholarly Journals-1
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ISSN:0011-9164
1873-4464
DOI:10.1016/S0011-9164(04)90035-5