Exploratorium Seawater Cooling Water Intake
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Exploratorium Seawater Cooling Water Intake
Background:
The Exploratorium is a public learning laboratory located in San Francisco, California that uses cold San Francisco Bay saltwater to meet the majority of the building’s air conditioning needs. Cold saltwater is withdrawn from under the pier-supported Exploratorium and passed through a series of heat exchangers to cool water contained in a closed-loop, cold-water distribution system within the building. After passing through the heat exchanger, saltwater is returned to the bay. The saltwater intake is fitted with two of ISI’s hydraulic-drive, mechanical brush-cleaned wedge wire screens.
Benefit of ISI System
ISI’s screens provide compliance with stringent California and NOAA fish protection requirement through use of 1.75-mm slots openings and a 0.2 fps (6.1 cm/s) approach velocity. The brush cleaning system and anti-fouling coating ensures that the screens remain free from debris and fouling organisms that would otherwise impede operation of the intake or elevate approach velocities.
Owner:
Exploratorium
Engineer(s):
Power Engineering
General Contractor:
Nibbi Brothers General Contractors
Location:
Pacific Ocean, San Fransisco, CA
Year Installed:
2012
Slot Size:
1.75 mm
Screen Model:
D36-28HB-R
Drive System:
Hydraulic
Industry:
Public Education Facility
Water Body:
Marine
Flow Rate:
10 cfs (6.5 MGD; 1,019 m3/h)
Screen Type:
Drum Screens (single cylinder)
Retrieval Systems:
Retrievable Vertical Track
Number of Screens:
2
