Search found 156 matches
- Fri May 25, 2018 1:09 am
- Forum: Stirling and "Hot Air" Engine Forum
- Topic: Whispergen mk4
- Replies: 22
- Views: 27491
Re: Whispergen mk4
Mk5 was quite popular in germany, you could get them on ebay.de for 150 ey for not working, 1000-1500 used, 3000++ for new. But they have cracking hot side heat exchangers. About mine - do not imagine too. On one motor lime scale popped up cold heat exchanger and water got inside. On other dont ima...
- Fri May 25, 2018 1:08 am
- Forum: Stirling and "Hot Air" Engine Forum
- Topic: Whispergen mk4
- Replies: 22
- Views: 27491
Re: Whispergen mk4
So cool!
- Wed Apr 11, 2018 5:36 am
- Forum: Stirling and "Hot Air" Engine Forum
- Topic: Noob question - would these parts work?
- Replies: 23
- Views: 16467
Re: some alpha engines have displacers
Blaf, some alphas have displacers and since you have not started building yet, I would encourage you to consider the possibility in your design. Usually, this has the result of moving the rings of the the hot piston a good distance from the heat. Directly heating the cylinder and piston is rather p...
- Mon Mar 05, 2018 1:51 pm
- Forum: Stirling and "Hot Air" Engine Forum
- Topic: Converting Compressor to an Alpha Stirling Engine
- Replies: 26
- Views: 18038
Re: Converting Compressor to an Alpha Stirling Engine
I could only find one that was barely based off a Chrysler AC compressor. They had to rework so much, that they could have easily started from scratch.
- Thu Mar 01, 2018 5:53 am
- Forum: Stirling and "Hot Air" Engine Forum
- Topic: Converting Compressor to an Alpha Stirling Engine
- Replies: 26
- Views: 18038
Re: Converting Compressor to an Alpha Stirling Engine
Has anyone any where actually been successful in converting an air compressor to a Stirling engine??
- Mon Feb 19, 2018 8:27 pm
- Forum: Stirling and "Hot Air" Engine Forum
- Topic: Blechspielzeug engines
- Replies: 2
- Views: 4083
Blechspielzeug engines
I noticed ministeam is selling this apparently larger model? Any thoughts about it?
https://www.ministeam.com/acatalog/Stir ... ml#SID=342
;)
https://www.ministeam.com/acatalog/Stir ... ml#SID=342
;)
- Mon Feb 19, 2018 6:26 pm
- Forum: Stirling and "Hot Air" Engine Forum
- Topic: More volume on the hot side?
- Replies: 7
- Views: 6895
Re: More volume on the hot side?
Oh I see, the additional thermo mass outweighs the conduction from surface area?Ian S C wrote:The cold piston should have as little bulk as possible to enhance the rate of cooling, the crown is only effective on the hot cylinder.
Ian S C
thanks
- Sun Feb 18, 2018 5:02 pm
- Forum: Stirling and "Hot Air" Engine Forum
- Topic: Making a stirling engine 5 kw generator
- Replies: 24
- Views: 42355
Re: BTU of common fuels per pound
In researching this question, not all researchers come up with exactly the same figures. Please forgive any "errors" in the collected information. It is only meant as a general guide. BTU per pound of some common fuels Hydrogen 52,290 BTU per pound Acetylene 21,850 Propane 21,660 Gasoline...
- Sat Feb 17, 2018 4:26 pm
- Forum: Stirling and "Hot Air" Engine Forum
- Topic: More volume on the hot side?
- Replies: 7
- Views: 6895
Re: More volume on the hot side?
The hot side on my design is quite far away from the hot side, so heat creep shouldn't really be a problem. So if heat really is the only reason, my question is answered. The crown increases the surface area to conduct heat. In my opinion, it's a good idea to have a crown on both pistons. I'd made ...
- Sat Feb 17, 2018 4:20 pm
- Forum: Stirling and "Hot Air" Engine Forum
- Topic: Making a stirling engine 5 kw generator
- Replies: 24
- Views: 42355
Re: Making a stirling engine 5 kw generator
I have a funded project on making a stirling engine 5 kw generator Have you anyone had done or experienced stirling engine that can generate 5 kw can give me some information about the size of the power piston? the diameter of the displacer? engine type: (alpha, beta, or gamma) ?? As much informati...
- Sat Feb 03, 2018 4:42 pm
- Forum: Stirling and "Hot Air" Engine Forum
- Topic: Cant find old website
- Replies: 5
- Views: 6064
Re: Cant find old website
This engine Japan is pretty and a superb runner.
Generates meaningful power.
Less expensive than Boehm as well.
https://www.ebay.com/itm/Desktop-Stirli ... 2136054651
I think the engine had a limited production run as the manufacturing company seems out of business.
Generates meaningful power.
Less expensive than Boehm as well.
https://www.ebay.com/itm/Desktop-Stirli ... 2136054651
I think the engine had a limited production run as the manufacturing company seems out of business.
- Sat Feb 03, 2018 4:35 pm
- Forum: Stirling and "Hot Air" Engine Forum
- Topic: Cant find old website
- Replies: 5
- Views: 6064
Re: Cant find old website
Quite the contrary. Boehm engines are junk imho. Make it run before you make something pretty.
- Wed Jan 24, 2018 10:10 am
- Forum: Stirling and "Hot Air" Engine Forum
- Topic: alpha engine question
- Replies: 3
- Views: 4998
Re: alpha engine question
Well with alpha, both pistons and cylinders can be identical on same crank pin 90 apart.
Displacer is misnomer here. Either hot or cold piston.
Displacer is misnomer here. Either hot or cold piston.
- Sun Jan 07, 2018 8:54 am
- Forum: Stirling and "Hot Air" Engine Forum
- Topic: First Sterling Finally Running
- Replies: 24
- Views: 21440
Re: First Sterling Finally Running
6500 rpm that's too fast imho. I recommend placing a load on it to see how many watts you generate. Do this set up: hook up a electric generator (a low voltage motor) via a rubber band belt. Send its power to a lower voltage motor. If the generator is AC, send it thru a bridge rectifier. Measure the...
- Sat Jan 06, 2018 7:03 pm
- Forum: Stirling and "Hot Air" Engine Forum
- Topic: Silver soldering stainless steel hot end
- Replies: 12
- Views: 10621
Re: Silver soldering stainless steel hot end
Oops, the cadium is tocic. I'd steer clear from them.