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UT-160 turbine? Feedback please?

Old 12-08-2009, 03:30 AM
  #76  
chrigui
 
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Default RE: UT-160 turbine? Feedback please?

Many thank Gerald

this is the data reading
not 120.000 due lack of fuel in a festo join



my next test is with exaust cone like yours...

i think to put the engine in a PST F-84G
Old 12-08-2009, 10:03 AM
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erazz
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Default RE: UT-160 turbine? Feedback please?

Very nice work chrigui.
Excellent workmanship!

The numbers are very good. You should have a very nice running engine.

Are the readings taken with the cone off? If so they may be slightly high. As a rule you should try and keep the EGT (cone on) to 650c or below. Anything over will reduce bearing life and increase chances of turbine failure.

The c.c. also shows signs of "late" (e.i. rearward) burning - you can see that the front part was cooler. You might want to try to block some of the holes in front. Also try to bend the injector needles to the side so the fuel contact the vaporization tube as soon as possible. These changes should help reduce the EGT.


Keep on posting!
Old 12-08-2009, 12:19 PM
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Default RE: UT-160 turbine? Feedback please?


ORIGINAL: erazz

Very nice work chrigui.
Excellent workmanship!

The numbers are very good. You should have a very nice running engine.

Are the readings taken with the cone off? If so they may be slightly high. As a rule you should try and keep the EGT (cone on) to 650c or below. Anything over will reduce bearing life and increase chances of turbine failure.

The c.c. also shows signs of ''late'' (e.i. rearward) burning - you can see that the front part was cooler. You might want to try to block some of the holes in front. Also try to bend the injector needles to the side so the fuel contact the vaporization tube as soon as possible. These changes should help reduce the EGT.


Keep on posting!

hello...
the numbers are taken with cone "on" and i think that are good
i burned over 20 litres of kerosene
Old 12-08-2009, 02:55 PM
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Default RE: UT-160 turbine? Feedback please?

Indeed good looking numbers, you might even tweak the cone more with those temps. First see what you have at max rpm.

Best regards,
Gerald
Old 12-09-2009, 02:02 AM
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Default RE: UT-160 turbine? Feedback please?

i will try another cone like your..
now i must to test the reliability for secure use on model...
Old 12-09-2009, 03:28 AM
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Default RE: UT-160 turbine? Feedback please?


ORIGINAL: chrigui


ORIGINAL: erazz

Very nice work chrigui.
Excellent workmanship!

The numbers are very good. You should have a very nice running engine.

Are the readings taken with the cone off? If so they may be slightly high. As a rule you should try and keep the EGT (cone on) to 650c or below. Anything over will reduce bearing life and increase chances of turbine failure.

The c.c. also shows signs of ''late'' (e.i. rearward) burning - you can see that the front part was cooler. You might want to try to block some of the holes in front. Also try to bend the injector needles to the side so the fuel contact the vaporization tube as soon as possible. These changes should help reduce the EGT.


Keep on posting!

hello...
the numbers are taken with cone ''on'' and i think that are good
i burned over 20 litres of kerosene

Hi,

If so then the numbers are very good

Great to see more turbine builders here.
Old 12-09-2009, 03:38 AM
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Default RE: UT-160 turbine? Feedback please?

many thx....

this is a long time work start one years ago, stopped due to crisis in my factory , then
re-started 2 weeks ago ...

Old 12-12-2009, 11:16 AM
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Default RE: UT-160 turbine? Feedback please?

today new test with fuel tank revised

rpm trust temp.
120.000 16,2 / 16,5KG 707°c
Old 12-12-2009, 03:09 PM
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Default RE: UT-160 turbine? Feedback please?


ORIGINAL: chrigui

today new test with fuel tank revised

rpm trust temp.
120.000 16,2 / 16,5KG 707°c

Nice thrust but the temp is a bit high. The bearings can suffer with this heat.
You can either open up the nozzle, tinker with the c.c. or just limit the RPM.

Don't sweat it. Building turbines is like that. The tinkering never ends

Old 12-12-2009, 03:24 PM
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Default RE: UT-160 turbine? Feedback please?

this is the high temp reached during today test
other value was 687° - 672°....the nozzle is little closed in diameter than original design
Old 12-16-2009, 08:02 AM
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Default RE: UT-160 turbine? Feedback please?

here in the KERO START version
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Old 02-14-2010, 07:27 PM
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Default RE: UT-160 turbine? Feedback please?



Hey Man , You got a seriously good looking engine, keep up the good work , its an inspiration for some of us ..

What bearings do you run on your engine ?
Old 02-14-2010, 07:33 PM
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Jetbono
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Default RE: UT-160 turbine? Feedback please?



What Dia compressor are you using ?
Old 02-15-2010, 01:56 AM
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Default RE: UT-160 turbine? Feedback please?

70 mm diam.
Old 02-19-2010, 12:55 PM
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Jetbono
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Default RE: UT-160 turbine? Feedback please?

Hey  All 

Im currently building a KJ66 style combustion chamber , does anybody know where I can get Inconel vaporizer tubes ?

Also Which Grade inconel is best to use, 718 or 625 ??
Old 02-19-2010, 01:13 PM
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Default RE: UT-160 turbine? Feedback please?

Very close to you....: http://wrenturbines.co.uk/accessorie...mebuilderparts

Old 02-19-2010, 02:25 PM
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Jetbono
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Default RE: UT-160 turbine? Feedback please?



Ahh right , Great ..

Thanks
Old 02-21-2010, 07:01 AM
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Jetbono
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Default RE: UT-160 turbine? Feedback please?



What is the best way to make the combustor ends such as in picture bellow ?

Press or Spinning ?

Whats best ?

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Old 02-21-2010, 07:13 AM
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Default RE: UT-160 turbine? Feedback please?

i used a press ..
Old 02-21-2010, 08:40 AM
  #95  
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Default RE: UT-160 turbine? Feedback please?

Depends on how much you wanna make. For small amounts spinning is a good option as I do, making lots of them you better make some moulds for a press.

Below some pictures of my spinning method, just one of the way's to do it.
(In this case spinning a MW54 chamber)

Best regards,
Gerald

Spinning mould making:
















Drawing of multifunctional mould:



And here the larger one for my GR180, bit simular to the ones here:












Old 02-21-2010, 11:22 AM
  #96  
Jetbono
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Default RE: UT-160 turbine? Feedback please?



Gerald You are good man ..
I love your work ...
I wish I could have your talents ..

Thanks for your help everybody ..
Will try to make mine too hahaha 
Old 02-21-2010, 11:28 AM
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Default RE: UT-160 turbine? Feedback please?

I agree with Jetbono!

I went to your website! Sorry about the drool all over your webserver! LOL! Those pics of your work had me wanting to do the same thing you are. If only I had the equipment, the skills, the time, the money, ... LOL!

Maybe one day. Keep up the good work and I wish you much luck and success!

-Jorden
Old 02-21-2010, 12:13 PM
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Default RE: UT-160 turbine? Feedback please?

Many thanks!

Cheers,
Gerald
Old 02-21-2010, 01:07 PM
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Default RE: UT-160 turbine? Feedback please?

i use one of this machine

Old 02-21-2010, 01:11 PM
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Wow thats industrial press .. Howmuch pressur do these generate ?


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