Reading values of glass rotameters at different pressures
Thread Content
As the title suggests: How should the readings of a glass rotameter at different pressures be calculated to obtain the flow rate under actual atmospheric pressure? For example: the reading of the existing compressed air flow meter is 2 m3/h, and the gas pressure at the inlet and outlet of the flow meter is 0.5 MPa. Question: How can the standard-condition flow rate of a gas be calculated? Nm3/h – this shouldn’t even be a problem at the entry level; I would appreciate some advice from everyone. Xiaobai, just one; P
Conversion is performed based on the equation of state.
Calculation using the P1V1=P2V2 equilibrium equation
Thank you all. In that case, 2 m3/h of compressed air at 0.5 MPa is roughly equivalent to 10 Nm3/h at atmospheric pressure? If it is static, the change in volume at different pressures is quite easy to understand. Does this equation of state also apply to flowing gases? If so, then it should be 10 Nm3/h?