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I have a question regarding the conversion between volumetric flow rates in nm3/h and m3/h

2019-09-19View Original

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I would like to ask the experts: given that we know how to convert units, what is the formula for doing so? For example, what is the value of 72955 nm3/h when converted to m3/h? (Working pressure: 0.149 MPa; temperature: -38°C.) Could you provide a detailed formula along with the calculation steps? I searched online and found the equation p1v1/t1 = p2v2/t2, but the values I get do not seem correct. Which temperature should be used here? Is it -38°C? It seems like positive and negative values don’t matter that much, then. Should pressure be specified as absolute pressure or gauge pressure? )I would be extremely grateful if the experts could share their insights. Thank you very much
Reply #22019-09-19
First, you need to understand what standard conditions are. They refer to 100 kPa and 273 K. Using the equation pv = NRT, volume is proportional to T/P; here, P refers to absolute pressure, and temperature is in Kelvin
Reply #32019-09-20
This post was last edited by Swimming_Fish_RHTD on 2019-9-20 at 16:44. For converting the volume of a gas under certain conditions using the ideal gas law, all we need to do is ensure that the units of temperature and pressure are consistent, right?

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