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Discussion on Stirling or "hot air" engines (all types)
auret
Posts: 21
Joined: Mon Jan 04, 2016 6:19 am

Re: "Hi...We are new here!" First posts here (or anywhere is OK)

Post by auret »

Hi, I'm new here. I'm an Australian inventor. I built my first collapsing steam water pump 20 years ago. I have built a rotary Stirling and a biscuit-tin shaped machine. I understand that the Achilles heal of these devices is that the thick vessel walls that allow us to use high pressure, well those walls are the limiting factor in heat transfer, and that the temperature difference across the vessel wall x2, is what makes use of low temperature differentials impossible. Earlier today I lodged a provisional patent in Australia that outlines a method to bypass that limiting factor, removing the Achilles heal from these devices for good. I understand that if I am right, the world will be a different place. I won't hide the details and am ready for your judgement.
auret
Posts: 21
Joined: Mon Jan 04, 2016 6:19 am

Re: "Hi...We are new here!" First posts here (or anywhere is OK)

Post by auret »

circumventing the impedance to heat/cold transfer by the thick walls of the cylinder. That was done by 2 mutually exclusive events, which are alternated.

First heat in a liquid in transferred by 2 way flow and pump between a thin source vessel and a intermediary high pressure vessel. The second is to use the incompressibility of the liquid to cycle that liquid into the main cylinder of the motor, but behind a thin wall.

I trust this information makes you happy.

Kind Regards,
Derek
GATED HEAT MOTOR
KRAPO
Posts: 1
Joined: Mon Jan 25, 2016 3:48 pm

Re: "Hi...We are new here!" First posts here (or anywhere is OK)

Post by KRAPO »

salut merci de faire parti du forum
Administrator
Owner
Owner
Posts: 94
Joined: Mon Jan 30, 2006 9:04 pm

Re: "Hi...We are new here!" First posts here (or anywhere is OK)

Post by Administrator »

KRAPO wrote:salut merci de faire parti du forum
"hello thank you to forums party"

French???

His IP is out of Montreal Canada
OhioLinear
Posts: 1
Joined: Sat Jan 30, 2016 2:27 pm

Re: "Hi...We are new here!" First posts here (or anywhere is OK)

Post by OhioLinear »

hello, first post....from Ohio...picked up my interest in Stirlings many moons ago at Ohio University and Dr. Izzy's Thermo 101 class.

:big smile:
tentstovenerd
Posts: 20
Joined: Sun Feb 07, 2016 10:31 pm

Re: "Hi...We are new here!" First posts here (or anywhere is OK)

Post by tentstovenerd »

Hi
I am a chinese in Beijing China
I am doing BBQ things and wood tent stove for camping.
I am thinking to develop thermoelectric power generator to charge mobile phone.
and I find this great place.
Stirling engine must have much higher efficiencey than TEG.
I will teach myself here first
aardbewoner
Posts: 1
Joined: Thu Feb 11, 2016 9:25 am

Re: "Hi...We are new here!" First posts here (or anywhere is OK)

Post by aardbewoner »

Looks like that’s me to be the new one :) living in the netherlands, retired.
Want to make just the best stirling, have the concept ,but need to find out much first like the best volumes for the displacer /working cylinder.
The plan is for a gamma ,and i always thought that if the displacer goes to the cold end the gas heat up and drive the power piston.But some movies show it the other way around. Nice can of worms :)
Basic idea will be a multi cylinder, hot end temp 400 to 1000 , cold end 10 to 40 deg.C. 50 CC/cylinder. for a start.

edit for first mistake, its a gamma not beta :red:
Ian S C
Posts: 2218
Joined: Thu Dec 02, 2010 5:15 am
Location: New Zealand

Re: "Hi...We are new here!" First posts here (or anywhere is OK)

Post by Ian S C »

It's really only the lay out of the engine that makes the difference between ALPHA, and BETA, every thing still works the same, ratio's are the same, just that in the BETA motor the transfer from one cylinder to the other is cut to zero.
When the displacer is at the cold end, the gas is heating up, and the displacer is moving back, and the piston is moving down.
Welcome to the forum.
Ian S C
Gene.243
Posts: 1
Joined: Sat Feb 27, 2016 11:07 pm

Re: "Hi...We are new here!" First posts here (or anywhere is OK)

Post by Gene.243 »

Hi folks,
New guy here. I think Stirling engines are cool and would enjoy building some. I'd like to move away from the table top versions and build a large one. I'm mainly interested in low delta T versions but have never seen one scaled up to a useful size.

Gene
yoyoma1
Posts: 2
Joined: Fri Apr 08, 2016 10:58 pm

Re: "Hi...We are new here!" First posts here (or anywhere is OK)

Post by yoyoma1 »

Making my first Stirling for a school project. Grateful for anyone who could take this quick survey:
http://surveynuts.com/surveys/take?id=6 ... 502801VTDT
osman
Posts: 2
Joined: Sat Apr 09, 2016 5:34 am

Re: "Hi...We are new here!" First posts here (or anywhere is OK)

Post by osman »

Hi,
I am a very interested in Stirling engine. I would like to share what I know and learn from you guys.
skippy_fx140
Posts: 1
Joined: Sat Apr 30, 2016 3:38 pm

Re: "Hi...We are new here!" First posts here (or anywhere is OK)

Post by skippy_fx140 »

Hi, new to the forum but but I have been lurking for a while :)

Cheers Si.
Ecosse
Posts: 3
Joined: Mon May 02, 2016 9:20 am

Re: "Hi...We are new here!" First posts here (or anywhere is OK)

Post by Ecosse »

Hi! I did post a separate intro but will recap here. I'm new to hot air/Sterling engines but do have a background in mechanical things, fixing and tinkering. While considering a small steam engine for a motorized bicycle the Sterling is very intriguing and may be a more desirable solution if I can first determine its suitability to this application.
pcbug99
Posts: 2
Joined: Thu May 05, 2016 3:20 am

Re: Registering, and Deactivated...PLEASE READ!

Post by pcbug99 »

I just found and joined this forum today April 5, 2016
I am retired and have a long time interest in Stirling engines and would really like to see them replace IC engines at least in small engine area.
My location is rural Missouri, USA
pcbu99
pcbug99
Posts: 2
Joined: Thu May 05, 2016 3:20 am

Re: "Hi...We are new here!" First posts here (or anywhere is OK)

Post by pcbug99 »

I just found and joined this forum today April 5, 2016 (I posted this in the wrong place so I am reposting here)
I am retired and have a long time interest in Stirling engines and would really like to see them replace IC engines at least in small engine area.
I like to tinker and would like to build a few Stirling engines.
My location is rural Missouri, USA
pcbu99
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