On Mon, Nov 28, 2011 at 11:50:37AM -0500, Stephen Kandul wrote:
>
> I want one just to play with!!
Windbelts are easy enough to make - there are lots of videos of people
doing just that on Youtube.
--
Ben Okopnik
-=-=-=-=-=-
The darieus is a vertical axis wind turbine developed some years ago. The pros are its simplicity and stability. The cons (commercially) is that there is bound to be more of a boundary (dirty airflow) effect near the ground and they don't self start in low winds. The Hollywood one was strictly show.Don
From: mhhogland <mhhogland@yahoo.com>
To: electricboats@yahoogroups.com
Sent: Saturday, November 26, 2011 7:00 AM
Subject: [Electric Boats] 48Volt system simple COTS question
I need some simple advice.
i have a Ray outboard - 48volt
8 6 volt batteries
1 lestronic II charger
questions:
1) can i plug a Honda 3000i generator into the lestronic and run the Ray to get home without damaging any component?
2) what device is available today, that can provide me with more data than the lame red/green gauge Ray comes with? SPECIFICALLY while running? something like torqueedo has.
3) is there a way to safely place 2 of my 6 volt batteries (normal old batteries - not agm, not sealed, not lithium) in my helm console without safeety issues of having the electrics near the battery?
i could build a separation box that vents perhaps. - weight distribution is the objective.
4) i have more than 100 feet from outlet to boat charger, i know the extension cord is too small, so i am going to make a heavier gauge extension cord - what gauge should i use that is above requirement but a 52 year old man can haul around.
i LOVE this group. 3 years of lurking. i dont like it when the "electricboat family" argues though. i am a single parent of 3 teenagers alone - so i know arguing.
THANKS
"boatnicdad"
Hi All,
I never write posts due to my poor english but I will try to inform group about last HYMAR conference in METS Amsterdam. http://www.hymar.org/
HYMAR is a consortium of european boating companies that try to broadcast advances about electric propulsion.
Best part of the conference in my opinion was Japec Jakopin, Naval Architect and partner of SEAWAY-Greenline
http://www.seaway.si/
Greenline 33 hybrid boat is a success, more than 200 were sold last 2 years, its a cheap vessel, nice and it works fine.
Whisperprop, Mastervolt, Oceanvolt, Steyr, Panda... lots of new electric and hybrid developments are interesting.
--- In electricboats@yahoogroups.com, "Paul Artola" <artola@...> wrote:
>
> Sadly, Ruben Trane reported at the Annapolis show last month that the DSE project is essentially dead. I was sad to hear this, since I feel what it lacked in stylish looks, it made up in functionality, engineering and comfort. Maybe in the future he will come back to this, but for now, he seemed to feel his market is not ready for the hybrid yacht.
>
> On the other hand, the Greenline is doing quite well. European (and Australian?) sales are quite good for a production vessel, and Annapolis Sail Yard has sold several in the past year. The new 40' model looks really nice. I think the design of the Greenline is very appealing to many boaters, and I just hope sales continue so the company stays around and keeps developing hybrid cruisers.
>
> - Paul Artola
> Ellicott City, Maryland
> ICE for now, Electric someday!
>
>
> --- In electricboats@yahoogroups.com, James Sizemore <james@> wrote:
> >
> > Two companies are already in the 40 foot hybrid category:
> > http://www.greenlinehybrid.com/
> > http://www.dsehybrid.com/
> >
> > I do not think it would be hard to beat the DSE in looks, one ugly boat. The Greenline is not a bad looking boat.
> >
> > In the pure electric category you might have stiffer competition http://www.solarwaterworld.de/en/products/yacht/suncat-46.html
> >
>
I'm not so sure about that damping effect. I think it would just be a matter of tuning the machine to the medium. The belt would probably need to be bigger/heavier/longer but I think it would work. I'll put it on my list of prototypes to build...
--- In electricboats@yahoogroups.com, Ben Okopnik <ben@...> wrote:
>
> On Sun, Nov 27, 2011 at 04:27:58AM -0800, John Green wrote:
> >
> > Hi, Ben, I agree, a real winning piece of thinking - I have to admit
> > that 'no' was my first thought too re a water powered version.
> > However, as water has greater mass, the 'belt' could be extremely
> > smaller, and the stroke maybe larger (or not) to span multiple coils
> > maybe, and possibly not be a belt at all, but a pivoted oscillating fin.
>
> Unfortunately, the main physical effect that the Windbelt depends on -
> sustained oscillation - can't be sustained under water; water is quite
> good at damping oscillation (in fact, the term "damping" seems
> strikingly apropos here. :)
>
> > Footnote- As for ram pumps, I lived in a UK hamlet that had one, and the
> > clicking noise was heard a mile away. So, don't even go there :-)
>
> Funny - I saw one supplying water to a mountain cabin, and it was
> totally silent. Bad bearings, maybe?
>
>
> --
> Ben Okopnik
> -=-=-=-=-=-
>
For those who asked here is the link to the company that holds the windbelt patents apparently….
If you look at the one meter grids they developed and read the info it is clear they see this as scalable technology. Someone said the noise alone would keep people from using these on boats, and maybe that relates to the “humdinger” name. Who knows….maybe it is possible to tune the strips to play musical cords, etc. Guess you could meter current flow and have it calibrated to measure wind speed as a trivial side benefit. Maybe you could put a set of electrically powered dampers on each strip and wire them to a key board for actuation and have a wind powered instrument of a new type. Probably be weak in the lower register though…? Seems like there are a lot of things you could experiment with using windbelts…like how many and how close they can be arranged to make a one meter cube of windbelts?? That would be a new approach to “power density”, or put a windbelt in one of those Bernoulli (sp?) funnels that speeds up fluid velocity as it narrows.
I want one just to play with!!
Regards, SSK
| Well there was the famous cat of "Water World" (movie), that had the 3 bladed vertical axis wind turbine, that had the mast as vertical "axis". I don't know whether this was a working model or just a movie prop, but it looked operational enough. Rob on Linda
|
Say, thanks for the link to the Windbelt information. Looks like they have scaled up to a one meter square grid and are testing it in Hong Kong as of last year. Looks like the sort of technology that would be great for boaters who want a little battery topper offer that is not solar powered. Wonder if you could assemble enough of those panels to actually power an electric boat??Regards, SSK
On Sun, Nov 27, 2011 at 04:27:58AM -0800, John Green wrote:
>
> Hi, Ben, I agree, a real winning piece of thinking - I have to admit
> that 'no' was my first thought too re a water powered version.
> However, as water has greater mass, the 'belt' could be extremely
> smaller, and the stroke maybe larger (or not) to span multiple coils
> maybe, and possibly not be a belt at all, but a pivoted oscillating fin.
Unfortunately, the main physical effect that the Windbelt depends on -
sustained oscillation - can't be sustained under water; water is quite
good at damping oscillation (in fact, the term "damping" seems
strikingly apropos here. :)
> Footnote- As for ram pumps, I lived in a UK hamlet that had one, and the
> clicking noise was heard a mile away. So, don't even go there :-)
Funny - I saw one supplying water to a mountain cabin, and it was
totally silent. Bad bearings, maybe?
--
Ben Okopnik
-=-=-=-=-=-
| Well there was the famous cat of "Water World" (movie), that had the 3 bladed vertical axis wind turbine, that had the mast as vertical "axis". I don't know whether this was a working model or just a movie prop, but it looked operational enough. Rob on Linda --- On Mon, 11/28/11, Mark Lockley <lockleymark1@yahoo.co.uk> wrote:
|
Hi All,
I never write posts due to my poor english but I will try to inform group about last HYMAR conference in METS Amsterdam. http://www.hymar.org/
HYMAR is a consortium of european boating companies that try to broadcast advances about electric propulsion.
Best part of the conference in my opinion was Japec Jakopin, Naval Architect and partner of SEAWAY-Greenline
http://www.seaway.si/
Greenline 33 hybrid boat is a success, more than 200 were sold last 2 years, its a cheap vessel, nice and it works fine.
Whisperprop, Mastervolt, Oceanvolt, Steyr, Panda... lots of new electric and hybrid developments are interesting.
--- In electricboats@yahoogroups.com, "Paul Artola" <artola@...> wrote:
>
> Sadly, Ruben Trane reported at the Annapolis show last month that the DSE project is essentially dead. I was sad to hear this, since I feel what it lacked in stylish looks, it made up in functionality, engineering and comfort. Maybe in the future he will come back to this, but for now, he seemed to feel his market is not ready for the hybrid yacht.
>
> On the other hand, the Greenline is doing quite well. European (and Australian?) sales are quite good for a production vessel, and Annapolis Sail Yard has sold several in the past year. The new 40' model looks really nice. I think the design of the Greenline is very appealing to many boaters, and I just hope sales continue so the company stays around and keeps developing hybrid cruisers.
>
> - Paul Artola
> Ellicott City, Maryland
> ICE for now, Electric someday!
>
>
> --- In electricboats@yahoogroups.com, James Sizemore <james@> wrote:
> >
> > Two companies are already in the 40 foot hybrid category:
> > http://www.greenlinehybrid.com/
> > http://www.dsehybrid.com/
> >
> > I do not think it would be hard to beat the DSE in looks, one ugly boat. The Greenline is not a bad looking boat.
> >
> > In the pure electric category you might have stiffer competition http://www.solarwaterworld.de/en/products/yacht/suncat-46.html
> >
>
