How to convert traffic volumes
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There is a hydrogen buffer tank, and the required inlet flow rate of hydrogen under standard conditions is less than 250 m3/h. How can this be converted into the allowable flow rate under operating conditions (35 degrees Celsius, 0.1 MPa)? I have a question.
In fact, the readings on the instruments show the flow rate under standard conditions.
To perform the conversion using the PVT equation, it is necessary to consult the relevant chapters on general physics.
250 Nm3/h, using PV=nRT
Use the ideal gas law PV=nRT to convert it.
This post was last edited by zfshao on 2017-4-19 at 15:08. The standard conditions are 0℃ and 0.1 MPa (A). Using the formula PV=NRT, P1V1/T1=P2V2/T2, we have: (0.1 MPa*250 m3/h)/273 = (0.2 MPa*V2)/(273+35), from which V2=139.65 is obtained. The operating pressure is 0.1 MPa (G); for low-pressure gases, a flow rate of 10 m/s is considered an optimal value, resulting in a pipe diameter of 70, which is rounded to DN80
PV=nRT – something you learned in high school; now that I’m working, I can’t apply it anymore. It’s really not easy to put what you’ve learned into practice