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Post by Johansson on Jan 25, 2013 15:53:47 GMT -5
Any progress?
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Feathers
Veteran Member
Joined: August 2010
Posts: 169
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Post by Feathers on Jan 27, 2013 1:07:35 GMT -5
Sad to say it, but no.
The University of Kansas's Aerospace Engineering curriculum is pretty intense, I haven't even had time to work on the research paper I'm supposed to be writing about the engine.
If I do scrape up some time and get something done, you will hear about it!
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Feathers
Veteran Member
Joined: August 2010
Posts: 169
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Post by Feathers on Feb 27, 2013 18:43:02 GMT -5
Update:
The engine is comming apart for the frame to be painted, and many little bits of instrumentation installed.
The University of Kansas is letting me use their engine test cell, at their installation at the local airport, to do performance testing for a basic cycle analysis.
I will be presenting the engine and data gathered as a low-cost educational gas turbine alternative at the AIAA (american institute of aeronautics and astronautics) region 5 student conference in april.
Submission deadline for presentations however is march 15, so I'm getting f***ing busy this weekend!
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Post by Richard OConnell on Feb 27, 2013 22:49:25 GMT -5
Very nice! Cant say I've ever had the pleasure of using a test cell.
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Post by Johansson on Feb 27, 2013 23:00:22 GMT -5
Better get to work then, I am looking forward to the test results!  |
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Feathers
Veteran Member
Joined: August 2010
Posts: 169
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Post by Feathers on Mar 14, 2013 14:49:37 GMT -5
Update I've got the engine frame painted, and 1/8" NPT 304SS bungs welded in with my shiny new tig machine. I have thermocouples (2 1200* type K EGT probes, and one 400* type K exposed tip) (installed in picture) and pressure transducers (not installed in picture) in order to record n2p2, n3p3, n4p4 (TOT, turbine outlet pressure). In addition, its got a spot for a thermocouple and pitot probe (stagnation pressure probe) at the minor nozzle diameter to calculate mass flow.  I'm ready to get it set up at the University of Kansas engine test cell at the local airport sometime soon, get it hooked up to some sort of DAQ, swim in data for a couple days, and do a basic cycle analysis. I'm investigating the practicality of these turbo-jet engines as a cost-effective alternative to much more expensive commercial gas turbine teaching apparatus (which start at $50K) This means a cost analysis, including assembly labor, and a cycle analysis to prove that it produces numbers that correlate at least reasonably with what theory predicts. I'd rather put wheels and a seat on it, but I have to consider the resume-value of a project like this.  |
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Post by racket on Mar 14, 2013 15:50:16 GMT -5
Sharp looking unit :-)
All the best with the testing , it'll be interesting to read the results.
Cheers
John
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Post by stoffe64 on Mar 15, 2013 3:38:09 GMT -5
now this was very interesting to follow, comparing a DIY engine with a real aircraft engine, now it becomes real scientific this hobby  good luck,looking forward for the results/cheers stephan |
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Feathers
Veteran Member
Joined: August 2010
Posts: 169
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Post by Feathers on Apr 30, 2014 18:07:42 GMT -5
It runs well now. Been a while, but I'm working with the university's Physics and Engineering Student Organization on getting this built into a kart, and having an afterburner installed. For now, we're just playing around. Hot start, but otherwise working |
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gidge348
Senior Member
Joined: September 2010
Posts: 426 
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Post by gidge348 on Apr 30, 2014 20:31:38 GMT -5
Just wondering of you got the comparative data you mentioned in your post of 15 March 2013?
Cheers
Ian...
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