Saturday, March 24, 2018

Re: [Electric Boats] Quite the potential project.. but is it feasible?

 

Good point.


Certainly, entering locks or docking in dodgy situations might be panic mode and in a couple minutes, you're sorted out or totally screwed ;-) , but based on the King's response, it makes sense to start with the assumed max required HP motor..  I would expect a bow thruster, and would like a stern thruster, but not sure if that fits in the budget.

I can forsee a situation where I might be near max output for a few hours, trying to make headway on a river or crossing one, but this would be quite rare.. but still needs to be planned for.

As to the king's comment on spendy... yeah, I fully expect that. This is currently a feasibility study, then I'd like to see what I can do for developing a budget, then a vessel needing re-powering must be at about that discount from "running" condition…

Thanks
-Rob


On Mar 24, 2018, at 9:42 AM, Daniel Michaels nov32394@yahoo.com [electricboats] <electricboats@yahoogroups.com> wrote:

Define panic mode. Most electric motors can handle panic mode for 2 to 5 minutes. Also think of alternatives to get out of the way or panic. Big anchors... bow thrusters...


On Sat, Mar 24, 2018 at 10:30 AM, Rob rob@sail4life.net [electricboats]
<electricboats@yahoogroups..com> wrote:
 

I've learned a lot by lurking, but I'm contemplating a project that is MUCH larger than anything I've seen addressed here, so I thought I'd ask for advice…

Thanks in advance !

Project: 100' and 100 +/- ton canal barge repowering

Current power (broken) diesel engine from 1957, originally rated 116 hp

I'd like to yank that beast and repower with an electric drive. 

Velocity requirements are: normally 3-5 knots. Panic mode 10-12 knots.

Assume the end product looks like a battery bank, 1-2kw solar, an autostart genset (possibly a larger and smaller unit?). Autostart based on demand and/or battery voltage… but that's a pretty broad assumption and I'm certainly open to options...

Generally, plan to move <20 miles per day, or maybe as far as the sun will take us. Also, typically don't have to deal with any current (but occasionally, thus panic mode above)

I thought I'd ask about feasibility before I even looked at the costing ;-)

Thoughts and/or suggestions?

Thanks!
-Rob



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