Energy Performance Enhancements of a 950 m³/d Seawater Reverse Osmosis Unit in Grand Cayman

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Mechanical and Industrial
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Performance,
Performance Management,
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Overview: This paper describes the upgrade of a seawater reverse osmosis (SWRO) unit by replacing the hydraulic turbocharger energy-recovery system with a Dual Work-Exchanger Energy-Recovery (DWEER) system. Tests conducted on the unit after the upgrade, when operated at essentially the same membrane conditions, showed a 59% capacity increase to 1,699 m³/d, and a 26% reduction in specific electricity to 2.22 kWh/m³. A further test was then conducted on the unit, by temporarily modifying it such that it operated at essentially the same conditions as before the upgrade. The test resulted in a specific electricity of 2.32 kWh/m³ and a reduction in specific electricity of 23% compared to the original performance.

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Format: PDF | Size: 172KB | Date: Oct 2000 | Pages: 10

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