Smoggy Posted July 2, 2018 Share Posted July 2, 2018 I'm sure B2P will have a reason why this won't work but here goes anyway....... How about a narrow rectangular tank clamped (like a NB skin tank) to the side of the rails with water flowing through cooled by the river via heat exchanger? The heat exchanger doesn't need to be any more technical that a coil of plastic pipe in the river ( like ground source heat pump), no salt water goes near the bridge as it would be a closed system with anti freeze mix, and it would only take a fairly low power pump to circulate it. Boaters happy Bridge happy Low cost I don't suppose there's any way the inside of the rail could be used like that but why not the outside? 1 Quote Link to comment Share on other sites More sharing options...
JennyMorgan Posted July 2, 2018 Share Posted July 2, 2018 38 minutes ago, Smoggy said: I'm sure B2P will have a reason why this won't work but here goes anyway....... How about a narrow rectangular tank clamped (like a NB skin tank) to the side of the rails with water flowing through cooled by the river via heat exchanger? The heat exchanger doesn't need to be any more technical that a coil of plastic pipe in the river ( like ground source heat pump), no salt water goes near the bridge as it would be a closed system with anti freeze mix, and it would only take a fairly low power pump to circulate it. Boaters happy Bridge happy Low cost I don't suppose there's any way the inside of the rail could be used like that but why not the outside? Blindingly obvious! Quote Link to comment Share on other sites More sharing options...
Smoggy Posted July 2, 2018 Share Posted July 2, 2018 And nothing more technical than half the boats going under are already using.... And no rusty water dripping too. The other option is to use rubber rails and tie a knot in the middle when they expand..... Quote Link to comment Share on other sites More sharing options...
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