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#31
07-17-2012, 02:10 AM
 JohnS Double Ultimate Supreme Member Join Date: Dec 2007 Location: SE Michigan, USA Posts: 8,716 Rep Power: 17
Re: Different between Nm3/h

Quote:
 Originally Posted by Unregistered What is the conversion factor between Nm3/h and m3/h
[/QUOTE]

It depends. m³/h generally refers to a measurement at actual temperature and pressure. The volume of a gas is a meaningless concept unles the temperature and pressure are clearly stated explicitly or by convention. Nm³/h is a convention. The volume, regardless of actual conditions, has been adjusted to what the gas would occupy at 0 °C, 101.325 kPa. Unless those ARE the conditions, it won't be the actual volume.

The adjustment is usually taken via the ideal gas law. Compressibility or a better equation of state may be used if the gas pressure/temperature/volume relationship departs significantly from the ideal gas law.
#32
08-10-2012, 10:37 PM
 Unregistered Guest Posts: n/a
Re: Different between Nm3/h = m3/h ?

Dear friends,
Plaese help me for calculate the unit Sm3/hr into m3/hr : as the biogas flow pressure is 1000 mmWC and temp. is 44 deg. C .

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