Simple Flame Holder: Material?

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BenJet
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Simple Flame Holder: Material?

Post by BenJet » Fri Feb 12, 2010 4:46 pm

Hello everyone, my question is:

The simplest to use flame holder is a simple coiled wire, but what material should it be made for long lasting? And how should the coil look like?

I know about an more effective H-Gutter and even better V-Gutter design but they seems complicated.

Greets
Ben
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Viv
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Re: Simple Flame Holder: Material?

Post by Viv » Fri Feb 12, 2010 5:16 pm

Hi Ben

Inconel probably see http://en.wikipedia.org/wiki/Inconel for more details

But why do you need a flame holder?

Viv
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BenJet
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Re: Simple Flame Holder: Material?

Post by BenJet » Fri Feb 12, 2010 6:59 pm

Viv wrote:Hi Ben

Inconel probably see http://en.wikipedia.org/wiki/Inconel for more details

But why do you need a flame holder?

Viv
Hi Viv,

Thanks for the information, the PulseJet I am currently working on needs it, so that the flame is not blown out at high velocity. It has the air intake looking forwards.

Do you know how the coil should look like? I think it must not have any specific form nor lenght. But well, maybe there was some kind of "special" wield lol :P

Thanks
Ben
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BenJet
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Re: Simple Flame Holder: Material?

Post by BenJet » Fri Feb 12, 2010 8:52 pm

Thanks again for the info.

I found a new way to set up the "V" flameholder, and it might be the optimal solution, still going to try the wire. And see how they both perform.

Something like this should do the trick. But with the type of material you recommended.
Image

And if not, this is the V flame holder. Still needs some modifying.
Image

Any suggestion?

Greets
Ben
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Johansson
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Re: Simple Flame Holder: Material?

Post by Johansson » Fri Feb 26, 2010 6:38 am

BenJet wrote:Any suggestion?
One suggestion is to build the engine without any flameholder at all, I think it would do more harm than good inside a pulsejet.

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