Formula calculation buffer gas bottle

[Remundo]

16 or 20g is a mass not a pressure

to express a pressure you need grams per certain surface area

I never try to guess an incomplete unit, it leads to the worst mistakes: I prefer to question until the one who asks gives the whole info

and again, dear Chatelot, strictly speaking, it is not grams, but Newton which must be used ...

I abstain from intervening in this subject which is a tuft of technical and scientific approximations and imprecisions

Now, if you can help our Grandpa Friend, I'll be happy

[chatelot16]

in France natural gas pressure in private homes is 21 or 27 milliBar depending on the type of bar

1bar = ~ 1Kg / cm2

therefore 21 mb = ~ 21g / cm2

I put = approximately because there is a confusion with the bar which is more exactly 1daN / cm2

and 1Kg = 9,81N = 0,981daN

there is therefore the approximation 1bar = 0,981kg / cm2

in any case it confirms what I said at the beginning: if it is 16 or 20 mb it is too low a pressure: the gas can be considered incompressible and a simple bottle cannot make any accumulation

to accumulate a significant amount of gas would require a mobile bell gazomete, which makes a constant pressure from full to empty

when the gas distribution is done at 4bar, it would be possible to put a bottle at this pressure upstream of the regulator ... but what good is it when it happens at 4 bar there is never a flow problem

I rather imagine your problem with a too long pipe at 20mb between meter and boiler

in industry we operate the first regulator and the meter at a higher pressure like 300mb, and we put a 21mb regulator next to the boiler or other device: each device therefore has a precise pressure even if there are consumption tip of others

[papy49]

in France natural gas pressure in private homes is 21 or 27 milliBar depending on the type of bar

1bar = ~ 1Kg / cm2

therefore 21 mb = ~ 21g / cm2

I put = approximately because there is a confusion with the bar which is more exactly 1daN / cm2

and 1Kg = 9,81N = 0,981daN

there is therefore the approximation 1bar = 0,981kg / cm2

in any case it confirms what I said at the beginning: if it is 16 or 20 mb it is too low a pressure: the gas can be considered incompressible and a simple bottle cannot make any accumulation

to accumulate a significant amount of gas would require a mobile bell gazomete, which makes a constant pressure from full to empty

when the gas distribution is done at 4bar, it would be possible to put a bottle at this pressure upstream of the regulator ... but what good is it when it happens at 4 bar there is never a flow problem

I rather imagine your problem with a too long pipe at 20mb between meter and boiler

in industry we operate the first regulator and the meter at a higher pressure like 300mb, and we put a 21mb regulator next to the boiler or other device: each device therefore has a precise pressure even if there are consumption tip of others

hello everyone
thank you for all its information.