What do they cost?
With the fuel cell additional storage and processing equipment is required
how much does it cost?
What is the all up weight of the 1800 watt system?
Andrew Gilchrist
www.fastelectrics.
612 4982 5481
Australia
_____
From: electricboats@
On Behalf Of Chris Witzgall
Sent: Tuesday, 22 September 2009 12:46 AM
To: electricboats@
Subject: Re: [Electric Boats] DMFC Fuel Cells - Hybrid Nirvana?
How much water do these things generate?
Chris
On 9/20/09 12:49 PM, "aweekdaysailor" <aweekdaysailor@
<mailto:aweekdaysai
>
>
>
>
> OK, I know this may seem a little far-out but I remain convinced that
> fuel cells are the "perfect" e-boat solution. Not as primary power, but
> as "continuous" chargers.
>
> I think we can all agree that eboat benefits are about
> noise/smell/
>
> For example - on my boat with 200AH (lead-acid) capacity, I have about
> 2 hours of cruising time @ 2KW draw to 60% DOD. That has averaged out
> pretty well for a typical day of sailing on SF bay (some days <20AH
> total, some days >80).
>
> But with continuous charging (500W) a couple of interesting things
> happen. I get another 45min (40%) of cruising (in 5 hours average
> sailing day). Plus extended cruising is now enabled. Lets say I tap out
> and want to anchor for the night somewhere without power. 500watts
> continuous over 10 hours = 5KW. That's pretty much topped the batteries
> off again and I have another day of sailing. In 15 hours I will have
> used about 7gallons of fuel - not inconsiderable, but manageable (oh and
> you can cook with it too)
>
> For all their power density - lithium batteries can't touch this - at
> most they just delay the inevitable for another day. Marine genny's are
> expensive AND they fail the noise/smell/
> test.
>
> I'm contacting several of the vendors now. This one looks most
> promising:
>
> http://www.ird. <http://www.ird.
dk/products_
> <http://www.ird. <http://www.ird.
dk/products_
> unit (consuming about 1g/hour) which improves the equation even more.
>
> Based on pricing info so far, these systems are cheaper in capital
> outlay than either Li cells or marine genny's (< $10K) - and net
> cost-to-run is cheaper than lead-acid (membrane life is still a concern,
> but I expect that to evolve rapidly). You get full house-power for your
> flat-screen and ice-maker. Drinking water (and unfortunately a little
> CO2) and heat to boot.
>
> Thoughts?
>
> -Keith
>
> [Non-text portions of this message have been removed]
>
>
>
>
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