|
Posted by Sam Kelly on December 30, 2006, 2:08 pm
Please log in for more thread options The adjustable wheel that can be screwed up or down by hand asjusts the
oxygen allowed to flow through the venturi, this gives a richer or leaner
mixture of air/fuel ratio. the closer the wheel to the venturi the richer
the flame with a decrease in flame velocity, screwing the wheel away from
the venturi allows more air in, a cleaner burn and an increase in velocity,
the pressure of the gas supply remains constsnt throughout.
> Hello. Does anyone know what parts of a gas inspirator (venturi)
> primarily affect the fuel/air ratio? I've tried searching high and low
> for the answer to this and can't find it anywhere. It seems like a
> black art or something.
>
> See, what I'm doing is building a reproduction of a pest scaring device
> which makes a loud noise to scare away birds and animals from crops,
> just in case anyone was curious. The goal is to have an adjustable
> fuel/air ratio to vary the flame speed. This changes the "tone" that
> is produced. Maximum flame speed occurs when the mixture is
> stoichiometric and tapers off on either side. I figured someone on
> here would know about this because sometimes people make their own
> custom burners for their kilns.
>
> Thank you,
> Robert
>
| 
XML site map