Search found 87 matches

by Chriske
Thu Dec 29, 2011 3:34 am
Forum: Stirling and "Hot Air" Engine Forum
Topic: Stirling 'first run'
Replies: 19
Views: 11550

Stirling 'first run'

Hi, http://gti-duffel.be/4B/StirlingCD/Stirling-CD01.mpg http://gti-duffel.be/4B/StirlingCD/Stirling-CD100.jpg This is what pupils from our school (GTI-Duffel - Belgium) made. It took about 5 pupils on a 2 hours/week basis to finish it in almost 4 months. Purpose is to have this engine mounted on a ...
by Chriske
Sun Aug 21, 2011 8:51 am
Forum: Stirling and "Hot Air" Engine Forum
Topic: Regenerator doubles power output.
Replies: 8
Views: 6356

Re: Regenerator doubles power output.

Ian,

Hold your horses...!
This LTD is not mine...!

I did reply because Aviator 168 started this thread about regenerators.

Chris
by Chriske
Sun Aug 21, 2011 1:40 am
Forum: Stirling and "Hot Air" Engine Forum
Topic: Regenerator doubles power output.
Replies: 8
Views: 6356

Re: Regenerator doubles power output.

This regenerator + ice does work very well :
A LTD running 1000 rpm, never seen before..!
http://www.youtube.com/watch?v=CdX7hwjh ... re=related
by Chriske
Thu Aug 11, 2011 12:17 am
Forum: Stirling and "Hot Air" Engine Forum
Topic: Flame-eater on track 'Gauge 1'
Replies: 5
Views: 4462

Re: Flame-eater on track 'Gauge 1'

Hi, Meanwhile I found myself this : http://www.youtube.com/watch?v=gxBKE_8kicE and the beauty of it, the man who created this magnificent running thing lives almost nextdoor. He has no plans or drawings to work with, but he's prepared to meet me in a few days, so we can discuss and talk about it. Th...
by Chriske
Wed Aug 10, 2011 8:36 am
Forum: Stirling and "Hot Air" Engine Forum
Topic: Flame-eater on track 'Gauge 1'
Replies: 5
Views: 4462

Re: Flame-eater on track 'Gauge 1'

Ian,

Do you have drawings and info I could use to build us that engine please..?


Chris
by Chriske
Wed Aug 10, 2011 12:33 am
Forum: Stirling and "Hot Air" Engine Forum
Topic: Flame-eater on track 'Gauge 1'
Replies: 5
Views: 4462

Flame-eater on track 'Gauge 1'

Hi there, I've read about a flame-eater driving a train. This project is described in a booklet 'Heisluftmotoren VII' bij Udo Mannek. I'm interested in building such an engine, but my intension is to drive a small train (or maybe just the loc) with it. My goal is to drive a train to have it run on a...
by Chriske
Sun Aug 07, 2011 1:55 pm
Forum: Stirling and "Hot Air" Engine Forum
Topic: Heliostat Solutions for aiming parabolic reflector?
Replies: 8
Views: 7075

Re: Heliostat Solutions for aiming parabolic reflector?

Hi guys, I'm into astronomy. If you want to track the sun, a equatorial mount would help you a lot. To be clear on the matter, speed summer or winter is the same. Only the position of the sun is a bit different in height. For a few bucks you could buy such a mount. With a bit of luck there even is a...
by Chriske
Wed May 04, 2011 9:51 pm
Forum: Stirling and "Hot Air" Engine Forum
Topic: Compressed air engine
Replies: 10
Views: 7916

Re: Compressed air engine

Thanks again for the input and the tips guys, Chriskie, I am not sure what you are teaching with this project. But if you want to teach efficiency or engineering I suggest you simplify the system. The others who mentioned power loss are correct. Every time you convert your power you will lose a lot ...
by Chriske
Mon May 02, 2011 5:02 pm
Forum: Stirling and "Hot Air" Engine Forum
Topic: Compressed air engine
Replies: 10
Views: 7916

Re: Compressed air engine

Thanks guys, ...for the comment so far. I think this project, if correctly designed, should work just fine. Possibly the 50% drop of power, as Ian wrote, is a bit on the high side. let's hope it will not be the case... On the other hand I think we should indeed consider about the cooling, and even f...
by Chriske
Sun May 01, 2011 2:18 pm
Forum: Stirling and "Hot Air" Engine Forum
Topic: Compressed air engine
Replies: 10
Views: 7916

Compressed air engine

Hi guys, I'dd like to start a new project next schoolyear (I'm a teacher) Purpose is to run an air engine, which will spin an alternator(of some kind) which will feed an electric motor. These motors will be used to drive a cart capable transporting one person. I'm not planning to make a speedy machi...
by Chriske
Sun May 01, 2011 2:16 am
Forum: Stirling and "Hot Air" Engine Forum
Topic: Design Ideas - "Alpha in a stick"
Replies: 4
Views: 4869

Re: Design Ideas - "Alpha in a stick"

This is an example, a very small one.
http://gti-duffel.be/4B/gamma.wmv
Just finished making this drawing and animation, planning to build this one in the near futur.
It's actually a project out of 'Onder Stoom' a dutch journal.


Chris
by Chriske
Sun Dec 05, 2010 2:06 pm
Forum: Stirling and "Hot Air" Engine Forum
Topic: Teflon rod as piston material?
Replies: 2
Views: 4630

Re: Teflon rod as piston material?

I think it's not workable because of the expansion, caused by the engine's heat.
Never tested it myself...
Other thoughts....?

Chris