Search found 99 matches
- Sat Feb 09, 2008 11:00 pm
- Forum: Stirling and "Hot Air" Engine Forum
- Topic: Displacer Gland Suggestions
- Replies: 4
- Views: 7469
- Sat Feb 09, 2008 10:54 pm
- Forum: Stirling and "Hot Air" Engine Forum
- Topic: My first LTD Stirling Engine - a few questions
- Replies: 6
- Views: 8465
Glad to hear you got it to run, neat huh? I'd say your top and bottom plates would do better with aluminum. It also sounds like maybe your displacer isn't fully bottoming out at each end of the stroke? You mention increasing the stroke there, it should pretty much touch at each end without causing f...
- Fri Sep 21, 2007 9:48 pm
- Forum: Stirling and "Hot Air" Engine Forum
- Topic: would a block of ice work
- Replies: 5
- Views: 9079
Using ice for cold side
Ice works well especially for first runs or when your having trouble with a new design. It will help you from adding too much heat to get it started. Just keep the melting water out of the inside! I needed ice to get my first engine running the first couple times until I fixed all the lttle things l...
- Wed May 09, 2007 10:16 pm
- Forum: Stirling and "Hot Air" Engine Forum
- Topic: Ugly Duckling Update
- Replies: 3
- Views: 7038
- Wed May 09, 2007 10:13 pm
- Forum: Stirling and "Hot Air" Engine Forum
- Topic: Ugly Duckling Update
- Replies: 3
- Views: 7038
- Wed May 09, 2007 10:10 pm
- Forum: Stirling and "Hot Air" Engine Forum
- Topic: Obtaining parts
- Replies: 2
- Views: 6430
Local hardware stores often carry plate aluminum and this place has all kinds of things on-line http://www.mcmaster.com/
- Wed May 09, 2007 10:07 pm
- Forum: Stirling and "Hot Air" Engine Forum
- Topic: increasing displacer 'dwell' time
- Replies: 14
- Views: 21415
tmk, From what I've seen, all the LTD's in the small model variety are gamma's. It's always fun to make something new or different even if it doesn't work any better only that it in fact just works. The problem I see with adding electical actuators to a Stirling would be that I expect the engine to ...
- Wed May 09, 2007 9:45 pm
- Forum: Stirling and "Hot Air" Engine Forum
- Topic: Compression cycle.. worthwhile?
- Replies: 7
- Views: 9752
Correct me if I'm wrong but I think a Stirling that is running has almost no compression since it is basically a one stroke engine cycle. Hot pushing out and cold drawing back in. However, a cold, not running Stirling will have compression when it's spun by hand due to it being a sealed system. You ...
- Wed May 09, 2007 8:54 pm
- Forum: Stirling and "Hot Air" Engine Forum
- Topic: cylinder ratios
- Replies: 14
- Views: 71716
Alpha, The ratio 1.5 to 1 I believe is for the best efficientcy for power produced by a typical Stirling cycle engine. This seems to be a base line to work with. LTD Stirling's use a much larger displacer to power cylinder volume. Mine have been about 10 to 1 and run well on very little heat. Your r...
- Sun Mar 18, 2007 6:46 pm
- Forum: Stirling and "Hot Air" Engine Forum
- Topic: First Run!
- Replies: 5
- Views: 9119
A real kick in the pants getting your first one running huh? The usual responce from those around you are that they think you lost your mind. Yes, a very personal experience indeed! Glad to hear I was of some help. The first one is often ugly and while the urge to build a second engine is strong, it...
- Wed Mar 14, 2007 9:11 pm
- Forum: Stirling and "Hot Air" Engine Forum
- Topic: Glass and graphite piston sets
- Replies: 16
- Views: 25928
- Tue Mar 13, 2007 10:38 pm
- Forum: Stirling and "Hot Air" Engine Forum
- Topic: Glass and graphite piston sets
- Replies: 16
- Views: 25928
A power piston with each side connected to hot and cold respectively will work and there are some out there in production units I believe. To make one home built can be done but it's no doubt more difficult. I have thought about some designs that would work that way but I have not attempted to build...
- Sat Mar 10, 2007 8:35 pm
- Forum: Stirling and "Hot Air" Engine Forum
- Topic: Glass and graphite piston sets
- Replies: 16
- Views: 25928
- Fri Mar 09, 2007 9:08 pm
- Forum: Stirling and "Hot Air" Engine Forum
- Topic: Glass and graphite piston sets
- Replies: 16
- Views: 25928
Work great!
I bought two of the K240 (I think it had a "K" in it) sets. I used one set on my second engine that you can see here http://nevadasteve.tripod.com/whatsstevesworldlikethesedays/id1.html It worked very well. I even dropped one of the pistons and distorted it a little, I sanded it back to sh...
- Fri Feb 23, 2007 9:56 pm
- Forum: Stirling and "Hot Air" Engine Forum
- Topic: Displacer piston
- Replies: 2
- Views: 6686
You need it to be light weight and very easy to move. There should be enough space between it and the walls of the displacer chamber to allow the air to pass without creating vacuum or compression but not too much or you will have air space that does no work (dead air) Styro foam, insulating foam bo...