Click for Horizon
Click for Quantum
Click For Dockwise
Click for Oceanco
Click for Rybovich
Click for Trinity
Go Back   YachtForums.Com > GENERAL YACHTING DISCUSSION > Technical Discussion > Air-Electric Drive System

Login to YachtForums
Username
Password

Reply

Air-Electric Drive System

 
 
Thread Tools Rate Thread Display Modes
Old 01-29-2007, 10:48 AM   #61
TRY
Senior Member
 
TRY's Avatar
 
Join Date: Sep 2004
Location: cannes
Posts: 295
I'msorry!

Dear K1W1,

Please apologize; I did not mean at all to be arrogant.
The technical statement says what it does and it is correct according to industry standards (as far as we think).

As for the second part of your reply - you already put this question (#30) on 12-10-2006, to which I replied with accuracy (#33) on 12-12-2006.
So, I am a shareholder and as such I'm participating very actively in the worldwide marketing of the territorial licences within MDI.

So far 45 agreements are signed, more on this tomorrow....
TRY is offline   Reply With Quote
Old 01-31-2007, 08:37 AM   #62
K1W1
Senior Member
 
K1W1's Avatar
 
Join Date: Sep 2005
Location: My Office
Posts: 1,205
Hi,

Thanks for answering my questions(twice).

I asked in Post# 45 about where the heat from the 800 Deg air charge would be going and you replied in #46.

If I understand your words corectly "serious expansion" is going to reduce the temperature and it will be carried away from the engine by an exhaust pipe.

Isn't the whole puropse of heating up the air so much to enable greater pressure and more "power" to be extracted from it?

If it is going to be cooled by serious expansion to the point that the heat is not an issue isn't this going to reduce or negate the benefit of heating it up so much in the first place?

Just one more question.

How hot do you calculate the engine as a whole will get when it is in service and has been running for an hour or so?
__________________
Cheers,

K1W1
K1W1 is offline   Reply With Quote
Old 01-31-2007, 09:00 AM   #63
The Reverend
Registered User
 
The Reverend's Avatar
 
Join Date: Jan 2007
Location: La Paz Mexico
Posts: 51
Efficiency Calcs

Try,
I have been following this thread with interest since it began. I admire your enthusiasm for pushing the envelope with new developments in engine design however; I’m interested how you calculated an efficiency of .85 for this engine given that from the pictures you posted earlier this month
1) I can see eight pulley/gears
2)There is a belt
3)That the engine has a lot of cooling fins which indicate there is a large amount of heat loss
4)The engine is on rubber mounts this indicating that the engine has some kind of cyclical component.

Some basic figures would be enough as I understand there is some commercial confidentiality required on your part.
Regards

Rev
The Reverend is offline   Reply With Quote
Old 01-31-2007, 10:10 AM   #64
TRY
Senior Member
 
TRY's Avatar
 
Join Date: Sep 2004
Location: cannes
Posts: 295
Answers to K1W1

The expansion itself cools the compressed air, from 30 bars at entrance of expansion chamber we go down to athmospheric pressure, hence the cooling.

The heating to create more volume is indeed a very interesting way to extend range, that's all.

Temperature of the engine (or motor) as a whole in normal use will be around 40-50°C, not more.

Therefore in series production a great number of parts will be made of plastic, lighter, cheaper.
TRY is offline   Reply With Quote
Old 01-31-2007, 10:28 AM   #65
K1W1
Senior Member
 
K1W1's Avatar
 
Join Date: Sep 2005
Location: My Office
Posts: 1,205
Hi,

I understand the concept of expanded air cooling, this is how the A/C works in Passenger Aircraft when at cruising altitude and speed.

Can you help me to understand just how this works.

Is the expansion chamber you refer to here the Cylinder(s) of the motor?
__________________
Cheers,

K1W1
K1W1 is offline   Reply With Quote
Old 01-31-2007, 11:16 AM   #66
TRY
Senior Member
 
TRY's Avatar
 
Join Date: Sep 2004
Location: cannes
Posts: 295
For K1W1

Correct, what we call expansion chambers are indeed the cylinders of the engine.
TRY is offline   Reply With Quote
Old 01-31-2007, 11:20 AM   #67
TRY
Senior Member
 
TRY's Avatar
 
Join Date: Sep 2004
Location: cannes
Posts: 295
Reply for The Reverend

Guten Nachmittag Bremen aus Süd-Frankreich!

OMG, nice to see the Church is interested!

No, that's only a joke.

We have 270° work per cycle, because we have two pistons per cylinder.
Simple mechanics, but the engineers are geniuses!
More degrees of work per cycle results in more efficiency.
TRY is offline   Reply With Quote
Old 01-31-2007, 12:24 PM   #68
K1W1
Senior Member
 
K1W1's Avatar
 
Join Date: Sep 2005
Location: My Office
Posts: 1,205
Hi,

Thanks again for your answers to my questions.

Now I am really confused.

In answer to my earlier questions you wrote

"The expansion itself cools the compressed air, from 30 bars at entrance of expansion chamber we go down to athmospheric pressure, hence the cooling."

You then went on to post in answer to my subsequent question that the expansion chamber is the cylinder.

Could you please explain to the unitiated just how it is possible to generate any motive force at all -even enough to push down the piston ,when you have clearly stated that the compressed air which going by your previous posts is the sole means of push is admitted to the expansion chamber/cylinder at atmospheric pressure is thereby no longer compressed and so therfore it has no push at all unless there is a vacuum in the crankcase.

Please feel free to correct my interpretation of the machine and it's function.

I look forward to your reply.
__________________
Cheers,

K1W1
K1W1 is offline   Reply With Quote
Old 02-01-2007, 04:09 AM   #69
The Reverend
Registered User
 
The Reverend's Avatar
 
Join Date: Jan 2007
Location: La Paz Mexico
Posts: 51
Efficiency

Thanks for your reply. Unfortunately you have now further confused me regarding “the fair and justified” .85 efficiency. With only 270 degrees of work per cycle therein lies a further energy loss this combined with the “classical exhaust system with valves, etc.” (Post 47) - is starting to make you claim look a bit questionable. Please - prove me wrong!

At the moment I think the church would be interested as we have a miracle on our hands
The Reverend is offline   Reply With Quote
Old 02-01-2007, 07:51 AM   #70
Ju52
Registered User
 
Ju52's Avatar
 
Join Date: Aug 2006
Location: Frankfurt
Posts: 60
can we make numbers ?

Hi all

can we have any numbers / calculations

How many HP can we have out of this (one) Engine? 25KW or more? What about multi-motors to increase the power?

How many compressed air do I need to go with 10kn and 150HP over 3000sm?
(= 300 hours running time)

From calculations I need 5 motors (25kW ~ 34HP) ... must fill the salon with air storages ?

I can put compressed air in short time in the tanks with more power (at shelf) or with less power (150HP) in a longer time.

Can you give us more ?

Thanks
Gerhard

Last edited by Ju52 : 02-01-2007 at 08:34 AM.
Ju52 is offline   Reply With Quote
Old 02-01-2007, 12:11 PM   #71
MaxResolution
Senior Member
 
Join Date: Jan 2007
Location: Little Rock
Posts: 162
Air Motor

TRY- I like the assumptive reasoning, because it is preclusive to the 'art' of science. As I said to my architect yesterday, "it sure is refreshing to deal with a professional who's always willing to assert himself with distinct opinions, pro-or-con. ...We have to butt heads to get this job done," -mates!

I once saw the "world's most amazing" S/Y in the harbour in Aukland. Y'all probably know the legend about this one. To set sail, she required the deconstruction of Two freeway bridges across the Brisbane harbour. The fore-deck accomodates a dance-floor for 300 people! The elliptical aluminum mast has a profile that would encircle a VW-bug. It's 'owner' was the Gov's of NZ and AU, it's probably still being held for back-taxes.

But, the first time I ever paid any attention to any sea-worthy craft was in Cannes. My interests, (and sole reason for visiting France, in '76,) was Impressionistic painting. My small 'aquarelles' of these picturesque hillside-views fetched about 1-200f. This enabled me to spend 2 months painting in NICE. Sadly, I returned to *Arkansas* and never gave another thought to boats until just recently. Soon, I hope to be working with a major systems integrator in Ft. Lauderdale, so it's high time I learned about all these interesting issues that become so mission-critical on the high seas!

Diesel appears to be the winner, overall. I do have a problem with bio-fuels because of the poor eco-CO2-exchange rates. We are ALL being forced to accept GM corn as a substitute for the good stuff. Next, Monsanto will introduce other varieties of 'Terminator' seeds, and it's "goodbye Gaza" after that!

The only sure recourse we have today is the use of 'over-unity' single-pole motors for recharging batteries. You can *halve* your stats for future electric vehicle weight requirements, once you get those deep-cells reconditioned. After merely going solar, one famous sailor reported; the best use for his 125kw generator was as an anchor! You've got to see the specs at John Bedini's site to appreciate the benefits of 'cold-charging' those deep-cells. Now it's possible to get about double the mileage in 1/3 the charging w/h.

*Those who don't have a clue what we are going on about should start here: http://www.peswiki.com/index.php/Con...nologies_--_RD

I'll post more cool links later.
MaxResolution is offline   Reply With Quote
Old 02-01-2007, 04:31 PM   #72
Ju52
Registered User
 
Ju52's Avatar
 
Join Date: Aug 2006
Location: Frankfurt
Posts: 60
and the perfect energy ...

Thanks for the link.

We have 2 main goals in energy research

- store more energie on on small volumes and weights
The limit is the famous formula from Einstein e = m * c^2
How much money is used for nuclear research etc.. in the last 50 vears ???

---- give me a pound of anything an we have enough energie ... on a boat we can take water

- to form energy withou loss , from stored energy to mechanical energy etc..

OK

how to store a big volume of 300 bar gas? What is the weight of this unit?
I found an sample engine ... and will append the picture :-)
This locomotive runs one day with heated steam / water

good night from Germany
Attached Images
__________________
In theory, theory corresponds to practice. In practice not.
Ju52 is offline   Reply With Quote
Old 02-02-2007, 12:30 AM   #73
MaxResolution
Senior Member
 
Join Date: Jan 2007
Location: Little Rock
Posts: 162
Air & Steam & Electromagnetics

Look at the battery demonstration, about 1/2 way down this page:
http://www.icehouse.net/john34/bedinibearden.html
...And imagine getting all that power out of the tiny whirly-bird atop your mast!

Next, consider the overall impact of all the subugated-technologies discussed here:
http://video.google.com/videoplay?do...55461813547423
* This film will cost you 1hr and 10 minutes, but it's the finest coverage of Bearden to date.

There you have it. Take the entire diapole-theory and dump it in the trash. It was proliferated solely to earn the elites a permanent advantage over the masses, and Today, it's killing the world's cultures in an exponential manner. (Need I mention the race to destroy Iran?)

'Mag-levitation' Trains, particularly Monorails, offer 30 times the advantages to the system that we could ever realize from roadways. But, we are told that 'Monorails' are far too expensive to build...

Just, count me out of this madness, -for good. I'm primarily interested in 'safe-passage,' as in a one-way trip to the 4th World. Someplace far from everyone, where all you need from 'society' is a fishing-hook, a permanent match and a few yards of weatherproof tarp!

TRY, what ever happened with that Ozzie 'orbital motor'? I'm referring to the one Ford bought to shelve. It got like 100mpg. As the ball starts moving, it's on the vertical plane, as the speed increases, it provides gyro stability for the vehicle, (no levellers required) and a ball-drive, which provided a perfectly smooth transmission, not that the air-motor requires one. (That transmission is now available for bicycles, but I lost the link.)
MaxResolution is offline   Reply With Quote
Old 02-02-2007, 10:46 AM   #74
brian eiland
Senior Member
 
brian eiland's Avatar
 
Join Date: Jul 2004
Location: Washington DC, Annapolis MD, Thailand
Posts: 644
Innovation

Quote:
Originally Posted by MaxResolution
...*Those who don't have a clue what we are going on about should start here: http://www.peswiki.com/index.php/Con...nologies_--_RD

I'll post more cool links later.
Thanks for that link...interesting summary of works in progress


Quote:
Originally Posted by MaxResolution
..'Mag-levitation' Trains, particularly Monorails, offer 30 times the advantages to the system that we could ever realize from roadways. But, we are told that 'Monorails' are far too expensive to build...
I suspect we have some similar interest. I came back from working in SE Asia in the mid-ninties with a renewed interest in 'monorails' only to find much of the USA referring to them as 'amusement park rides' rather than really taking them serious as the Japanese have done. The Germans had done some of the most serious prototyping work on Maglevs. Amazing lack of consideration of techno work accomplished by other countries by many here in the USA that seem to believe that only this country can really produce real innovation. Frustrating to deal with pigheadness.


Quote:
Originally Posted by MaxResolution
Just, count me out of this madness, -for good. I'm primarily interested in 'safe-passage,' as in a one-way trip to the 4th World. Someplace far from everyone, where all you need from 'society' is a fishing-hook, a permanent match and a few yards of weatherproof tarp!
Careful here, you might end up like this Mexican fisherman
Boating, Fishing, Siesta http://www.yachtforums.com/forums/29291-post36.html
brian eiland is offline   Reply With Quote
Old 02-02-2007, 01:51 PM   #75
MaxResolution
Senior Member
 
Join Date: Jan 2007
Location: Little Rock
Posts: 162
Three Tuna and a Pram

That's it, mate! Surely there are some ports o'call where 3 deep-water Tuna are easily worth a prime, double-wide ocean-front lot.

I sure needed a good laugh. With each post our world gets a little smaller, a little more user-friendly, and a lot more fun...

The main reason I need a self-powered boat, is that I want to overtake a big ketch, while strumming my electric guitar, with bronze-bikinied deck-hands from stem to stern: "Look Ma, No sails!"

Try is out to beat me just for the general 'no-noise' effect!
MaxResolution is offline   Reply With Quote
Reply


Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools
Display Modes Rate This Thread
Rate This Thread:

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

vB code is On
Smilies are On
[IMG] code is Off
HTML code is Off
Forum Jump


All times are EST. The time now is 12:27 AM.

Click for Shadow
Click for Shadow
Click for Christensen
Click for Nautical Structures
Click for Lazzara
Click for Dyna


Powered by vBulletin Version 3.5.4
Copyright ©2000 - 2008, Jelsoft Enterprises Ltd.
Content Relevant URLs by vBSEO 2.3.3