Search found 88 matches
- Mon May 17, 2021 5:00 am
- Forum: Stirling and "Hot Air" Engine Forum
- Topic: Converting Compressor to an Alpha Stirling Engine
- Replies: 26
- Views: 17010
Re: Converting Compressor to an Alpha Stirling Engine
Give me you email, will send some exerts from book. It will be better to run pressurized, due to lower total friction loss -ie 1 bar at 1000 rpm is close to 2 bar at 500 rpm, but latest one have twice lower piston ring friction + aerodynamic losses too.. I did it ran with your current geometry - its...
- Sun May 16, 2021 9:49 am
- Forum: Stirling and "Hot Air" Engine Forum
- Topic: AlphaGamma
- Replies: 18
- Views: 8092
- Sun May 16, 2021 9:44 am
- Forum: Stirling and "Hot Air" Engine Forum
- Topic: Converting Compressor to an Alpha Stirling Engine
- Replies: 26
- Views: 17010
Re: Converting Compressor to an Alpha Stirling Engine
You welcome. Do you have Senft book on mechanical efficiency of stirling engine ? Changing angle from 90 to 120 or 125 degree is not as hard. For our baby power level - aluminum crankshaft is totally ok. I was able to make new one for my first attempt in one evening turning session. Do you have bear...
- Sun May 16, 2021 7:50 am
- Forum: Stirling and "Hot Air" Engine Forum
- Topic: Converting Compressor to an Alpha Stirling Engine
- Replies: 26
- Views: 17010
Re: Converting Compressor to an Alpha Stirling Engine
Btw - my project was also born from similar china twin 65mm bore air compressor..
viewtopic.php?f=1&t=5223
viewtopic.php?f=1&t=5223
- Sun May 16, 2021 7:45 am
- Forum: Stirling and "Hot Air" Engine Forum
- Topic: Converting Compressor to an Alpha Stirling Engine
- Replies: 26
- Views: 17010
Re: Converting Compressor to an Alpha Stirling Engine
https://i.imgur.com/S72r7HR.png https://i.imgur.com/b8NeFIJ.png It shows some indicated power, but pv chart is very thin, all power will be wasted. This is for 125 angle between expansion and cooling: https://i.imgur.com/qQQUiSW.png Red is force work area then buffer pressure is half mean cycle pre...
- Sun May 16, 2021 4:02 am
- Forum: Stirling and "Hot Air" Engine Forum
- Topic: Converting Compressor to an Alpha Stirling Engine
- Replies: 26
- Views: 17010
Re: Converting Compressor to an Alpha Stirling Engine
And regenerator od id
- Sun May 16, 2021 4:01 am
- Forum: Stirling and "Hot Air" Engine Forum
- Topic: Converting Compressor to an Alpha Stirling Engine
- Replies: 26
- Views: 17010
Re: Converting Compressor to an Alpha Stirling Engine
Working fluid pressurization ? Piston rings one way ?
- Sun May 16, 2021 3:24 am
- Forum: Stirling and "Hot Air" Engine Forum
- Topic: AlphaGamma
- Replies: 18
- Views: 8092
Re: AlphaGamma
welding: https://www.youtube.com/watch?v=rXMoIddEV94
welded : https://i.imgur.com/1dyv4Rx.jpg
Turned in lathe to give final touch.
https://i.imgur.com/eTUfXR0.jpg
https://i.imgur.com/z86RXZU.jpg
~480 cm2 of area.
welded : https://i.imgur.com/1dyv4Rx.jpg
Turned in lathe to give final touch.
https://i.imgur.com/eTUfXR0.jpg
https://i.imgur.com/z86RXZU.jpg
~480 cm2 of area.
- Sun May 16, 2021 2:31 am
- Forum: Stirling and "Hot Air" Engine Forum
- Topic: Converting Compressor to an Alpha Stirling Engine
- Replies: 26
- Views: 17010
Re: Converting Compressor to an Alpha Stirling Engine
Heater cooler tube length, diameter internal and numbers. Regenerator size and fill..
- Sat May 15, 2021 12:02 am
- Forum: Stirling and "Hot Air" Engine Forum
- Topic: Converting Compressor to an Alpha Stirling Engine
- Replies: 26
- Views: 17010
Re: Converting Compressor to an Alpha Stirling Engine
Please provide you geometry data - will make some simulation run for you.
Btw thsi guy was able to make it. https://m.youtube.com/channel/UCe3fCFq8H2cVzbVA-_lzO6Q
Btw thsi guy was able to make it. https://m.youtube.com/channel/UCe3fCFq8H2cVzbVA-_lzO6Q
- Fri Apr 23, 2021 3:57 am
- Forum: Stirling and "Hot Air" Engine Forum
- Topic: AlphaGamma
- Replies: 18
- Views: 8092
Re: AlphaGamma
Tomorrow happens:
Internal alternator taken from china 250w / 36 volts ebike motor. Plus some space left for extra flywheel.
Internal alternator taken from china 250w / 36 volts ebike motor. Plus some space left for extra flywheel.
- Wed Apr 07, 2021 9:24 am
- Forum: Stirling and "Hot Air" Engine Forum
- Topic: AlphaGamma
- Replies: 18
- Views: 8092
Re: AlphaGamma
Newer, newer and newer use ready made equipment for stirling engine. Its just have too much wrong bore/stroke ratio and is too massive for our power level. You cant make re generator shorter than you stroke, and i was forced to have it at 45mm length.. Where all examples and simulations shows 20-25m...
- Mon Apr 05, 2021 6:00 am
- Forum: Stirling and "Hot Air" Engine Forum
- Topic: AlphaGamma
- Replies: 18
- Views: 8092
Re: AlphaGamma
I also did notice this.
- Mon Mar 29, 2021 3:31 pm
- Forum: Stirling and "Hot Air" Engine Forum
- Topic: AlphaGamma
- Replies: 18
- Views: 8092
Re: AlphaGamma
Sadi, you a wrong. Alphagamma is nothing more than alpha with bigger than 90deggre phase difference and less parasite load on drive mechanism. And it was builded in more than one prototype. I would not comment you invention.
- Sun Mar 21, 2021 7:44 am
- Forum: Stirling and "Hot Air" Engine Forum
- Topic: AlphaGamma
- Replies: 18
- Views: 8092
AlphaGamma
Hello. I am on 10% of building my firts power producing str engine. Decided to add progress here. It was inspired by Viktor from Russia (He actually try to build engines for sale, based on v twin compressor) : https://en.energotonyka.com/teploelektrostancii-na-othodah https://www.youtube.com/watch?v...