Previous in Forum: VBA programming behind AutoCAD 2007   Next in Forum: left Hand Insertion Helicoil Set
Close
Close
Close
15 comments
Rate Comments: Nested
Power-User
Ireland - Member - New Member Engineering Fields - Energy Engineering - New Member

Join Date: Aug 2007
Location: Northern Ireland
Posts: 197
Good Answers: 17

Rotary steam generator

04/03/2008 9:42 PM

About 15 years ago (ooops, sorry getting old) I saw a programme on BBC regarding so-called free energy generators.

Before everyone goes cock-a-hoop, I am well aware this is not possible. However one 'invention' involved a steam generator which appeared to use resonance to create steam. Involved a disc of metal with suitably spaced holes, rotating in a casing driven by a motor. It was allegedly used to create hot water for showers in a local fire station (USA). Can't find anything via The God of Google.

My application is not looking for free energy (my cats have an abundant supply, usually about 4am each morning...). However the rotary-to-heat aspect may have a function that fits my application.

I steal my nerves for the ubiquitous guffaws, but so sleeps the beast....

__________________
I love deadlines; I love the whooshing sound they make as they pass by. - Douglas Adams
Register to Reply
Interested in this topic? By joining CR4 you can "subscribe" to
this discussion and receive notification when new comments are added.

"Almost" Good Answers:

Check out these comments that don't yet have enough votes to be "official" good answers and, if you agree with them, vote them!
Guru

Join Date: Aug 2007
Posts: 1790
Good Answers: 87
#1

Re: Rotary steam generator

04/03/2008 9:48 PM

I have seen this for compressors, but not for steam generation. But the compression technology is simply putting energy in the gas, so there is no reason that similar technology could be used for steam... Here is a link to the compressor technology.

http://www.aip.org/png/html/macroson.htm

Register to Reply
Guru

Join Date: Aug 2007
Location: Earth - I think.
Posts: 2143
Good Answers: 165
#2

Re: Rotary steam generator

04/04/2008 12:53 AM

No guffaws; your not looking for a "free lunch". I did a search using the Demi-God "Yahoo", but the only thing I found was a patent from 1871, that was not useful information. Well, actually I did see offers to "Buy your Rotary steam generator" from www.stupidbuyers.com , but that didn't seem to fit the bill either.

Converting of one form of energy to another is done all the time, the only question is: Is it worth it? Since you are basically talking mechanical to heat, the losses should be minimal (or at least relatively easy to deal with).

What is the app? Maybe there is another way to deal with the issue.

__________________
TANSTAAFL (If you don't know what that means, Google it - yourself)
Register to Reply
Active Contributor

Join Date: Jul 2007
Location: India ,Kolkata
Posts: 10
#6
In reply to #2

Re: Rotary steam generator

04/05/2008 12:37 AM

I don't know what to say .Who ever told about this Free Energy is violating the basic concepts of Heat and energy transfer.It will be better for him to have a look at the entry level science books.Energy can't be created or destroyed.It only change from one state to another.So this is like the old puzzle.Who is the first one Hen or Egg? Without any source energy can't be created.Source need Energy.I don't know about Rotary steam Generator.But all I know is Steam is a Energy,and Electricity is also an Energy.Theres come the old principle of Energy conversion.What's the big deal then?

__________________
Sm
Register to Reply
Guru

Join Date: Dec 2007
Location: Cypress Calif
Posts: 741
Good Answers: 23
#3

Re: Rotary steam generator

04/04/2008 8:06 AM

Can't help you with the steam generators, but I have a cat on the same schedule if that'll help any you can have, of course my wife comes with it.

__________________
"The reasonable man adapts himself to the world; the unreasonable one persists in trying to adapt the world to himself. Therefore all progress depends on the unreasonable man" George Shaw
Register to Reply Off Topic (Score 5)
Power-User

Join Date: Jan 2007
Location: UK S.Northants
Posts: 485
Good Answers: 19
#4

Re: Rotary steam generator

04/04/2008 8:27 AM

I also saw that program, I remember it looked like an induction motor the drum inside had a close-fitting OD with a series of shallow blind hole, it seemed to apply a shearing force to the water and generate steam that way. Whilst not being over-unity, it seemed to work. I too, wondered what happened to it.

In terms of conversion losses you have to generate electricity, transmit it, convert it into rotary motion and use that to generate the steam. If you had spare rotary capacity it might be useful, or were driving from an i.c. engine where you have no electricity, but a resistive heating element yields 100% electricity to heat conversion albeit with its production and transmission losses.

Register to Reply
Power-User

Join Date: Apr 2007
Posts: 126
Good Answers: 15
#5

Re: Rotary steam generator

04/04/2008 10:55 PM

Hi BabyGuinness,

That fellow and their company is in Dalton Georgia. I can not think at 1/4 of 11PM , of his name. If I remember I'll write again, but you might call the Dalton GA Chamber Of Commerce on Monday Morning and someone there will surely remember them.

Its a pretty big operation now and over at youtube.com if you search for a while you will find a video or 2 , that is all about their process and how the operation was going. It's Pretty neat stuff , I love free & low cost energy.

Best Of Luck Friend,

Joe Woodall, Managing Partner

Georgia Adobe Rammed Earth & Renewable Energy

2395 Bowman Hwy. NW

Dewy Rose, GA 30634

www.georgiaadobe.com

706-213-7693

Register to Reply Score 1 for Good Answer
Guru

Join Date: Aug 2006
Posts: 4484
Good Answers: 246
#11
In reply to #5

Re: Rotary steam generator

04/05/2008 5:50 PM

They are actually in Rome, GA, and now called Hydrodynamics, Inc. In some other thread, here at CR4, this device came up, and I think I said I'd give them a call -- and I think I did, but never heard back from them. They made a transition from "over unity" to just a pretty good water heater -- the over unity guy is apparently no longer with them.

__________________
There is more to life than just eating mice.
Register to Reply Score 1 for Good Answer
Associate
Belgium - Member - New Member

Join Date: Jun 2007
Posts: 28
#7

Re: Rotary steam generator

04/05/2008 2:53 AM
Register to Reply Score 1 for Good Answer
Associate

Join Date: Sep 2007
Posts: 36
#8
In reply to #7

Re: Rotary steam generator

04/05/2008 11:01 AM

A nice way to produce quick, on demand hot water? Maybe.

Over unity, or perpetual motion? Nahhhh.

I wonder if it is more efficient? Even a what appears to be a small electric motor can draw amazing amounts of current in a short time.

Shoot, I wonder if it even makes hot water or steam.

But, according to the first video, they claim over-unity, but do you notice, they do NOT show you evidence? Don't believe everything you see on the net, children.....

Register to Reply Score 1 for Good Answer
Associate
Belgium - Member - New Member

Join Date: Jun 2007
Posts: 28
#10
In reply to #8

Re: Rotary steam generator

04/05/2008 5:27 PM

There is a company who use this technologie in a commercial products.

http://www.hydrodynamics.com/index.htm

Regards

Register to Reply
Guru

Join Date: Dec 2005
Posts: 1602
Good Answers: 19
#12
In reply to #8

Re: Rotary steam generator

04/07/2008 9:39 AM

Rotary energy inside a centrifugal pump with a discharge valve closed will cause the water to get hot. If allowed to heat enough to turn the water to steam could generate enough pressure to cause the pump casing to explode. Normally, the moral of the story is to never operate a pump for extended periods with the discharge valve closed, since the energy will either generate motion (in the water) or generate heat.

I have not had the time to run through the numbers, but my intuition tells me a simple resistance element water heater would be more efficient than the rotating diisk. Even though I am a mechanical engineer, this is an application that would be best served with fewer moving parts, IMHO.

__________________
Eventually, one needs to realize that it is far less important to be the smartest person in the room than it is to sit next to that person and make friends.
Register to Reply
Power-User

Join Date: Feb 2008
Location: Minnesota, USA
Posts: 109
Good Answers: 8
#13
In reply to #8

Re: Rotary steam generator

04/07/2008 10:49 AM

I wonder why they didn't have a steam turbine running their steam generator, and blowing off the 70% excess to atmosphere? Shouldn't that have worked?

__________________
OpMan
Register to Reply
Guru
Popular Science - Cosmology - New Member Popular Science - Paleontology - New Member Popular Science - Weaponology - New Member Popular Science - Evolution - New Member Popular Science - Genetics - New Member Popular Science - Biology - New Member

Join Date: Nov 2007
Location: The Nevernever as much as possible, Earth when I have no choice.
Posts: 665
Good Answers: 11
#9

Re: Rotary steam generator

04/05/2008 12:29 PM

BabyGuiness. Try You-tube and type in "SPR Cavitation". It shows a working unit with hi-speed photography to show actual water boiling and with it other links.

Regards Dragon

__________________
Ignorance is the beginning of knowledge. Heresy is the beginning of wisdom. The ignorant heretic is the wisest of all.
Register to Reply
Associate
Engineering Fields - Mechanical Engineering - Member

Join Date: Aug 2006
Location: Gujarat, INDIA
Posts: 46
Good Answers: 3
#14

Rotary steam generator

04/25/2008 1:19 AM

In India, some automobile factories have started using heat pumps for generating hot water (50 deg to 70 deg celsius) for washing machines & other process requirements. It is similar to an air conditioner - uses the atmospheric heat & other waste hest. Another advantage is the by product is cold air - precious in a hot country. The COP is ~5 whereas it is unity for electrical resistors. The power saving is 70 - 75%

Register to Reply
Commentator

Join Date: Jan 2008
Posts: 83
#15

Re: Rotary steam generator

05/08/2008 2:22 AM

check out "Hydrosonic" and "hydro dynamic ltd."

Register to Reply
Register to Reply 15 comments

"Almost" Good Answers:

Check out these comments that don't yet have enough votes to be "official" good answers and, if you agree with them, vote them!
Copy to Clipboard

Users who posted comments:

Blink (1); Dragonsfarm (1); Farman@skynet.be (2); Georgia Adobe (1); HUX (1); Kilowatt0 (1); mobilemechanixx (1); OpMan (1); pretzel (1); Ried (1); Steve S. (1); suman2122 (1); venkat (1); YWROADRUNNER (1)

Previous in Forum: VBA programming behind AutoCAD 2007   Next in Forum: left Hand Insertion Helicoil Set

Advertisement