Calculation of gas consumption for steel cylinders
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How to calculate how much gas has been used based on the pressure gauge reading on the cylinder
Inert gases (such as N2/H2/Ar) can be estimated based on pressure and cylinder volume. For example, for gases at 15 Mpa, a 40L cylinder corresponds to 6 m3; an estimation is made by using proportional scaling
How is it calculated? Could you give a more detailed explanation?
This post was last edited by Qingchengjun on 2018-1-30 at 11:46. When making estimates, it is not necessary to take the compression factor or temperature into account. The standard volume corresponds to a pressure of 0.1 Mpa; the actual pressure inside the gas cylinder can be accurately measured using a pressure reducing valve installed on the cylinder’s outlet, even when no gas is flowing. If it is 15 Mpa, the compression ratio is 15/0.1 = 150 times; multiplying this by the actual volume of the gas cylinder, which is 40 L or 50 L, gives an actual volume of 6000 L or 7500 L respectively. This is how the calculation is done. The total amount used can be calculated by using the pressure difference before and after, but it is not possible to calculate the air release rate in real time