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Post by racket on Apr 10, 2020 23:08:18 GMT -5
oil burner spray nozzles , you only need a single centrally mounted one in the endcap
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spartablades
Member
hi i m new here ..i m start to build that project ..a have a turbo with intake inducer diameter 7,4
Joined: February 2020
Posts: 33
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Post by spartablades on Apr 11, 2020 5:27:04 GMT -5
oil burner spray nozzles you mean somthing like that? 80 or 90 Degree ?
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spartablades
Member
hi i m new here ..i m start to build that project ..a have a turbo with intake inducer diameter 7,4
Joined: February 2020
Posts: 33
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Post by spartablades on Apr 27, 2020 11:12:04 GMT -5
Hello Today I make the tube a All is ready for welding Before that i quote you some photos
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spartablades
Member
hi i m new here ..i m start to build that project ..a have a turbo with intake inducer diameter 7,4
Joined: February 2020
Posts: 33
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Post by spartablades on Apr 27, 2020 11:19:21 GMT -5
My turbo inducer 7,4 cm Then Combustion chamber tube = length 45cm diameter 20.5cm Thickness 3mm Flame tube = length 45cm diameter 14,8cm Thickness 1.5mm Is that All ok? I m starting welding?
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Post by racket on Apr 27, 2020 19:04:08 GMT -5
Start welding :-)
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spartablades
Member
hi i m new here ..i m start to build that project ..a have a turbo with intake inducer diameter 7,4
Joined: February 2020
Posts: 33
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Post by spartablades on Apr 30, 2020 17:20:16 GMT -5
Hello everyone I started to welding all tubes ...next days I will saw to you some photos Now i have questions Why I saw videos to youtube about flametube testing? Why they test the combustion chamber? When the turbine is starting the spark plug and the coil is stopping? Or it working every time ? How the flame does not stop? Explain that video youtu.be/MtyDw9BPfAE
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Post by racket on Apr 30, 2020 20:04:14 GMT -5
NO NO NO ...........that vid is all wrong :-(
The video is about "atmospheric testing" , (something I've never done) , the reason for the flames exiting the combustor is because too much fuel was being supplied for the amount of air supplied by the blower/starter .
Testing the combustor like this can be of help if you run into problems, but generally we don't need to as our combustors a generously sized.
The sparkplug only needs to be operating just long enough to get combustion started , it can then be turned off as combustion is continuous.
When atmospheric testing we must have a thermocouple mounted at the outlet of the combustor and only sufficient fuel added to bring temperatures up to the design maximum temperature ( TIT) of ~800 C -1450F , its not much fuel compared to when the engine is running
Cheers John
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spartablades
Member
hi i m new here ..i m start to build that project ..a have a turbo with intake inducer diameter 7,4
Joined: February 2020
Posts: 33
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Post by spartablades on May 1, 2020 3:20:32 GMT -5
NO NO NO ...........that vid is all wrong :-( The video is about "atmospheric testing" , (something I've never done) , the reason for the flames exiting the combustor is because too much fuel was being supplied for the amount of air supplied by the blower/starter . Testing the combustor like this can be of help if you run into problems, but generally we don't need to as our combustors a generously sized. The sparkplug only needs to be operating just long enough to get combustion started , it can then be turned off as combustion is continuous. When atmospheric testing we must have a thermocouple mounted at the outlet of the combustor and only sufficient fuel added to bring temperatures up to the design maximum temperature ( TIT) of ~800 C -1450F , its not much fuel compared to when the engine is running Cheers John how the flame continue to burn? because the hight temperatures?or with somwthing mechanism? Until now, I thought that the flame was going on all year round because of the spark plug.
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spartablades
Member
hi i m new here ..i m start to build that project ..a have a turbo with intake inducer diameter 7,4
Joined: February 2020
Posts: 33
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Post by spartablades on May 1, 2020 3:28:19 GMT -5
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Post by racket on May 1, 2020 17:05:32 GMT -5
Hi
It doesn't go out for the same reason a propane torch doesn't go out once it ignited, our spark plugs are there for initial ignition only , once the flame is alight it should stay alight.
Cheers John
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spartablades
Member
hi i m new here ..i m start to build that project ..a have a turbo with intake inducer diameter 7,4
Joined: February 2020
Posts: 33
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Post by spartablades on May 2, 2020 8:00:33 GMT -5
Hi It doesn't go out for the same reason a propane torch doesn't go out once it ignited, our spark plugs are there for initial ignition only , once the flame is alight it should stay alight. Cheers John Hiii Thank you My project will start with propane Later the main burn will be with kerosine The spark plugs is used only until start burn? Later I close the spark plugs The flame will stay burn without the plug is on?
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Post by racket on May 2, 2020 17:22:25 GMT -5
Yep , spark to get the fire alight , then turn off spark and the flame should stay alight .
Remember that propane is heavier than air when positioning the spark plug , the propane will "sink" to the lower portions of the combustor
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