Search found 9 matches
- Wed Jan 13, 2010 9:11 pm
- Forum: Valveless pulsejet forum
- Topic: Show me a Useful Valveless Pulse Jet Engine.
- Replies: 13
- Views: 17353
Re: Show me a Useful Valveless Pulse Jet Engine.
Is there something I'm missing here, beck technologies have pulse jets with down to 1.2 TSFC and the concorde at cruise has 1.195 http://en.wikipedia.org/wiki/Thrust_specific_fuel_consumption and I think thats around where military jets are too, more speed means less efficient. And jets are very ine...
- Wed Oct 21, 2009 2:37 am
- Forum: Off topic forum
- Topic: youtube
- Replies: 1511
- Views: 542320
- Thu Sep 17, 2009 3:48 am
- Forum: How to improve this site
- Topic: Site layout
- Replies: 21
- Views: 21284
Re: Site layout
The top frame and menue stays there on every page, and it takes up room, and it stays there when clicking links to other sites. Right now it's also got the bottom half of the menu selections cut off. there's no ads on this I dont know why it has to be there. I think a lot more people would visit if ...
- Thu Sep 17, 2009 2:48 am
- Forum: Tools and Construction
- Topic: welding with out warping?
- Replies: 2
- Views: 4106
welding with out warping?
I'm building a turbine like a fransis water turbine, or centrifugal fan, or tesla turbine but with fins. I wanted to use 20 gauge Stainless steal but the shop said they can't weld that with out warping it. I want to weld some 20G fins onto a 20G disc at 90 degrees. I see that many pulse jets are wel...
- Thu Jul 23, 2009 3:34 am
- Forum: Gas turbine forum
- Topic: pulse detonation valveless gasturbine
- Replies: 10
- Views: 15631
Re: pulse detonation valveless gasturbine
I'd believe it. Look at the water turgo's they have a slot in the pellers so the jet can get in closer to them. When the peller is closer to the jet it works hugly more efficient, the problem with impulse turbines is the peller has to move away. A pulse detonation timed for when the peller is closes...
- Wed Jul 22, 2009 6:10 am
- Forum: Valveless pulsejet forum
- Topic: buying pulse jets
- Replies: 12
- Views: 7754
Re: buying pulse jets
I want to buy one too. I've emailed beck but got no reply.
- Fri Apr 10, 2009 1:05 am
- Forum: Off topic forum
- Topic: youtube
- Replies: 1511
- Views: 542320
- Mon Mar 23, 2009 5:23 am
- Forum: Off topic forum
- Topic: Rocket turbine engine
- Replies: 0
- Views: 3438
Rocket turbine engine
International Automated Systems, came out with a steam turbine that they claim is 75% efficient with about 250C steam. The design is not shown, but I think it's basically a Hero's engine.
A video of it running is in the side menu
http://www.iaus.com/BladelessTurbine.aspx
A video of it running is in the side menu
http://www.iaus.com/BladelessTurbine.aspx
- Sat Mar 21, 2009 3:18 am
- Forum: Valveless pulsejet forum
- Topic: Heat resistant Material
- Replies: 2
- Views: 3017
Heat resistant Material
Is SS 304 resistant enough to make a continuous - flying pulsejet? Tungsten melts at 3400C
http://www.engineeringtoolbox.com/melti ... d_860.html
But tungsten rusts at 400C.
http://www.engineeringtoolbox.com/melti ... d_860.html
But tungsten rusts at 400C.