niffi
New Member
Joined: July 2014
Posts: 8 
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Post by niffi on Jul 4, 2014 9:14:36 GMT -5
Hi! I am from Germany and i would like to show you my axial flow micro Jetengine. The Engine has a six Stage Compressor (Aluminium) , single Stage Turbine (Inconel 600) and annular Combustion Chamber. Compressor Diameter is 65mm. I am currently developing the Electronics to get it run on kerosene. Here is a Picture:  Test Stand in development:  A Video (i know, the Vise is no proper Test Stand...  ) |
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rythmnbls
Veteran Member
Joined: August 2011
Posts: 145
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Post by rythmnbls on Jul 4, 2014 9:23:17 GMT -5
Welcome to the forum, very well done on the axial compressor. I first read about your work on RC-Universe and am pleased to see you posting here.
What is the axial flow speed of the compressor design ? I have a design on paper that used a value of 140 m/s and I would be interested in the numbers you used.
Regards.
Steve
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metiz
Senior Member
Joined: April 2011
Posts: 297
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Post by metiz on Jul 4, 2014 9:27:33 GMT -5
Hi Niffi,
Love the youtube vids you made. Can you share (design) specifications for this engine?
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niffi
New Member
Joined: July 2014
Posts: 8
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Post by niffi on Jul 4, 2014 9:56:10 GMT -5
Thank you! Very interesting Forum! I will give you more Details tomorrow, because now its Football Time |
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Post by madpatty on Jul 4, 2014 11:53:13 GMT -5
Hi Niffi,
Very well done on that engine...had been through your youtube video many times before...
Looking forward for some details on your engine and some more interesting posts regarding the same...
Welcome to the forum!!
Cheers,
Patty
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Post by Johansson on Jul 4, 2014 14:56:04 GMT -5
Hi Niffi!
How could I have missed this?! I´ve been living in the illusion that I have seen every interesting DIY gas turbine related video on Youtube and then this marvelous engine shows up and tips the scale! Awesome work Niffi!
Welcome to the board by the way, great to have you here.
Cheers!
/Anders
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Post by racket on Jul 4, 2014 19:31:52 GMT -5
Hi Niffi
Thats some fine craftsmanship in your engine :-)
Cheers
John
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niffi
New Member
Joined: July 2014
Posts: 8
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Post by niffi on Jul 5, 2014 15:51:38 GMT -5
Thank you! I have to take a look at my Calculations, but the Number is not fixed anyway. The axial Speed varies between the Stages with the RPM and it depends on the Stator Angle. But 140m/s should be realistic. More Infos: Projected Thrust 200N, max RPM 85.000, Pressure 1.3 bar. A Picture of the electric Chaos: linkThe Length of the Rotor is critical because of the Resonance. So the Rotor is connected by a brush to 5V and a contact of the Blades with the Casing shuts off the fuel immediately. The Bearings are hybrid ceramic so that there is no electrical connection. This Sensor is quite important and a second brush controls the voltage supply at any time. Tip Clearance is around 0.05 to 0.08mm. Compressor Surge will be detected by a piezo element. |
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