At 11:04 5/31/2000, Rico Sapolich wrote: >Thinking about it later, I reasoned that if such a scheme were effective, >then every power plant in my experience which used sea water in its coolant >system would have used it. All I can ever recall seeing were rather large >consumable anodes mounted to their intake structures. Active systems are used on (some) ships and other marine installations (and rich pleasure yachts). They work very well by impressing a current that opposes and overpowers the galvanic current. However, the current involved is something like 100 ma per square meter of protected surface, and you need electrodes all over the joint (dunno how close together). You need the bulk conductor provided by the seawater to make it work. I'm sure it would work fine on the intake gratings, but likely more trouble to set up all the active stuff than to use zincs and eventually replace the grating. The power plant is unlikely to sink or have its propellor fall off, after all <g>. d David Beierl - Providence, RI http://pws.prserv.net/synergy/Vanagon/ '84 Westy "Dutiful Passage" '85 GL "Poor Relation" |
Please note - During the past 17 years of operation, several gigabytes of
Vanagon mail messages have been archived. Searching the entire collection
will take up to five minutes to complete. Please be patient!
Return to the archives @ gerry.vanagon.com
The vanagon mailing list archives are copyright (c) 1994-2011, and may not be reproduced without the express written permission of the list administrators. Posting messages to this mailing list grants a license to the mailing list administrators to reproduce the message in a compilation, either printed or electronic. All compilations will be not-for-profit, with any excess proceeds going to the Vanagon mailing list.
Any profits from list compilations go exclusively towards the management and operation of the Vanagon mailing list and vanagon mailing list web site.