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Post by madpatty on Jun 5, 2014 2:11:11 GMT -5
No, Not like RCDons evap system.
My evap tubes are like the design John used in his "2 shaft kart huild"....
4 separate evaps with an injector for each tube...
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Post by madpatty on Jun 4, 2014 22:09:37 GMT -5
Thanks Chris,
I didn understand when u said smaller tube will be preferred....??
I wanted a good casing and flametube combination...
JETSPECS suggested 5"ID flametube...and 6-6.5" ID outer casing...
If i go with 5"ID flametube then i cant find suitable diameter outer casing so that annular area is not blocking the flow...
My main question was What if i use 6"ID flametube and 8"ID casing???
Thanks Madpatty.
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Post by madpatty on Jun 4, 2014 20:48:54 GMT -5
What are the possible consequences of using a larger diameter flame-tube???
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Post by madpatty on Jun 4, 2014 20:47:12 GMT -5
Hi All, This is regarding my almost first(last one failed) turbojet engine in which i will be using a Holset Hx35 turbocharger with 54 mm inducer diameter.... I have got general queries about the combustion chamber design... I am too afraid of fuel burning in the turbine that i am ready to build the combustion Chamber AS LARGE AS POSSIBLE.... ? About the Flametube can i use 161.5 mm ID steel pipe???
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Post by madpatty on Jun 4, 2014 20:30:25 GMT -5
Any help will be appreciated....
Cheers, Madpatty
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Post by madpatty on Jun 4, 2014 9:59:12 GMT -5
Hi All,
I need some help on choosing the steel pipes for my new combution chamber...
For the flametube i hve found 134.5mm ID and 141.3 mm OD steel pipe...
For the outer combustor can i have found 161.5mm ID steel pipe....
This gives almost 10mm air gap between the flametube and outer can...is that enough??
Are these dimensions good as per the requirement for a 56 mm inducer turbocharger....
Cheers, Madpatty.
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Post by madpatty on Jun 4, 2014 1:40:23 GMT -5
Hi Chris,
Thanks for such a valuable piece of information...
Can you direct me to the post regarding "why we should make combustors as large as possible" you just mentioned...
Cheers Madpatty.
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Post by madpatty on Jun 3, 2014 20:34:51 GMT -5
Sometime during the build i thought of using WASTEGATED turbocharger also.... See whats happening on diesel....!!! Cheers Madpatty.
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Post by madpatty on Jun 3, 2014 20:32:53 GMT -5
Hi Racket,
That was the problem i realized after completing my build...
Because before starting you never know that such small changes can lead to such big problems...
I didn use Jetspecs But it was a sort of "bypass area" design..sorta followed by RCDon....
Flametube is 4" in diameter and 12" long....
I am currently using fuel vapourisation.....
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Post by madpatty on Jun 3, 2014 20:01:04 GMT -5
Gas producer that i made was built using Holset HX35 with inducer diameter 54mm....
It used to work well on gaseous fuel but caused problems while running on diesel....temperatures sky rocketed sometimes much in the excess of 1100 degree celsius....while on gas they remained below 700 degree celsius...
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Post by madpatty on Jun 3, 2014 19:55:33 GMT -5
Hi All
Thought of starting a thread on my recent projects that is a free power turbine build for the gas producer that i had built almost a year ago....
Was following up some recent builds on this forum in the same field...
It is an awesome thing how experts here interact with amateurs....
Cheers Madpatty.
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Post by madpatty on Jun 3, 2014 12:23:43 GMT -5
Hi Miuge, On the same route!!! Cheers Prateek.
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Post by madpatty on Jun 3, 2014 8:08:13 GMT -5
Though that transition piece will reduce certain amount of swirl and hence the loss in efficiency but still the corners and edges are worst for a flow of fluid...
The part of efficiency will be lost at those edges of the rectangular geometry...
This is the worst fact that our combustion chambers like circular geometry but the turbine inlets are mostly rectangular....
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Post by madpatty on May 30, 2014 16:19:07 GMT -5
Awesome.....good job buddy...
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Post by madpatty on May 25, 2014 1:21:02 GMT -5
Hi Miuge, Good to see your project advancements... I wanted to know how are preventing lubricating oil from leaking on both sides of the bearing housing(sprocket end and hot end)
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