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Meter volume on combustion.

Post questions and info about combustion (flammable vapor) powered cannons here. This includes discussion about fuels, ratios, ignition systems, safety, and anything else relevant.
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Meter volume on combustion.

Unread postAuthor: wangpushups » Mon Nov 05, 2007 9:25 pm

What size should my meter be and how much volume should be in it? I have a chamber volume of 2675 ml. and a regulator. I'm going with 3/8 pipe size because when i used 1/2 inch it was too big. I was thinking about having the meter volume be around 40 ml., would that be right?
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Unread postAuthor: DYI » Mon Nov 05, 2007 9:39 pm

Is this the second or third time you have posted a topic asking a very similar question? A 40 ml meter would be ~1.5% of your chamber volume so yes, that is a good meter size. 40ml is around 2.44ci, so you would need around 22" of 3/8" pipe, assuming that it is .375" ID (which it isn't). You'll need to do a fluid volume measurement of the meter after you make it, and base your calculations on that number.
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Unread postAuthor: sandman » Mon Nov 05, 2007 10:07 pm

do it yourself, and use the resources around you, aka search
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Unread postAuthor: cwazy1 » Mon Nov 05, 2007 10:12 pm

use the calculators on burntlakte, they helped me alot when i was first setting up a propane system
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