Seeking advice on calculating the volume of gas under negative pressure
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Could all the experts please help calculate the gas volume under the following negative pressure conditions? Thank you! If the volume of the gas under standard conditions is 265 Nm3/h, what is its volume at an operating pressure of -1 barg and a temperature of 50 degrees Celsius?
That’s a true vacuum state; there should be no gas!
PV=NRT; the ideal gas law can be used to calculate this
How is the pressure value under negative pressure determined?
In this formula, P represents the absolute pressure, right? The standard pressure is 0.1 MPa, while absolute vacuum corresponds to 0 MPa
The pressure is converted to absolute pressure for calculation
It is recommended to use HYSYS for simulation, as it provides more accurate results
The original poster, what you’re trying to calculate is the flow rate under operating conditions, not the volume. Q_operating = Q_standard ** The operating conditions here are close to a vacuum state; perhaps what was intended was to refer to a vacuum condition. In a vacuum condition, there is no flow rate