Hello everyone!
Just some pictures from my pulsejet demonstration on July 14th, 2005.
Enjoy.
Valveless Pulsejet Demonstration
Moderator: Mike Everman
Valveless Pulsejet Demonstration
- Attachments
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- after_the_run.jpg (66.93 KiB) Viewed 3784 times
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- throttling_up_M-SP_14c.jpg (58.43 KiB) Viewed 3784 times
mk
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- Location: Zagreb, Croatia
re: Valveless Pulsejet Demonstration
Marten, your equipment is so neat; you should have become a doctor.
How did people react to the noise?
How did people react to the noise?
re: Valveless Pulsejet Demonstration
Marten
Great pictures!
More info please:
EG: Thrust stand, thrust, engine specs, fuel, fuel system...
Looking forward to reading and seeing more detail.
Dave
Great pictures!
More info please:
EG: Thrust stand, thrust, engine specs, fuel, fuel system...
Looking forward to reading and seeing more detail.
Dave
re: Valveless Pulsejet Demonstration
To me it looks like a very intelligent crowd that gathered, and plenty of genuine curiosity.
Mark
Mark
Presentation is Everything
Re: re: Valveless Pulsejet Demonstration
Some answers.
Occasion:
A faculty party at the Technical University. Pulsejet demonstration as pre-event mainly for the professors.
Reaction on the noise -- there wasn't more spectacular happening despite the metal getting a candy color:
A number of people suddenly became interested in the stuff that had been placed in front of the building. Intelligent questions/statements, astonishment, courious or weird judgements of people for themselves, no real interest and -- to close the circle -- nasty questions/statements.
Thrust stand:
Funciona bien! No vibrations or unwanted motion.
Achieved max. thrust:
<30 N, most likely 28 to 29 N, +- 2 N.
A bit too low, probably due to combustion product ingestion, because of a too short upper part of the -- about zero augmentation -- rectifier.
Engine specifications:
The drawing can be found by clicking here.
I used to pinch some sections slightly. "M-SP_14c" is just my indication for the same engine as presented in the drawing.
Fuel:
Propane vapore at 9 bar -- yes, it was a warm day.
Injector:
Perpendicular "swizzle-stick", similar to a "fuel rail" layout presented in a PDF.
Fuel line:
Well sealed. Gauge indicated this.
Engine throttling via main bottle valve.
Intelligent crowd:
Yes. Professors and students.
Thanks for your interest.
Occasion:
A faculty party at the Technical University. Pulsejet demonstration as pre-event mainly for the professors.
Reaction on the noise -- there wasn't more spectacular happening despite the metal getting a candy color:
A number of people suddenly became interested in the stuff that had been placed in front of the building. Intelligent questions/statements, astonishment, courious or weird judgements of people for themselves, no real interest and -- to close the circle -- nasty questions/statements.
Thrust stand:
Funciona bien! No vibrations or unwanted motion.
Achieved max. thrust:
<30 N, most likely 28 to 29 N, +- 2 N.
A bit too low, probably due to combustion product ingestion, because of a too short upper part of the -- about zero augmentation -- rectifier.
Engine specifications:
The drawing can be found by clicking here.
I used to pinch some sections slightly. "M-SP_14c" is just my indication for the same engine as presented in the drawing.
Fuel:
Propane vapore at 9 bar -- yes, it was a warm day.
Injector:
Perpendicular "swizzle-stick", similar to a "fuel rail" layout presented in a PDF.
Fuel line:
Well sealed. Gauge indicated this.
Engine throttling via main bottle valve.
Intelligent crowd:
Yes. Professors and students.
Thanks for your interest.
- Attachments
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- 07-14-2005.jpg
- Appendix: Occasion
- (71.47 KiB) Downloaded 145 times
mk