Questions and answers on how to convert things from one unit or system to another



Postby Ivan cordobaxt » Tue Jun 24, 2008 7:29 am

Dear sir

I have question how to convert m3/h to Nm3/h
Ivan cordobaxt

Re: converting

Postby Guest » Wed Jun 25, 2008 2:41 am

Ivan cordobaxt wrote:Dear sir

I have question how to convert m3/h to Nm3/h

I assume this is a gas. The volume of a gas ONLY has meaning if you also state the temperature and pressure at which the volume is measured.

Normal meters cubed (the "N" stands for normal") refer to a volume measured at 101.35 kPa and 0 °C.

Normally, a relationship derived from Ideal Gas law is used to adjust. For a given amount of gas, pressure volume and temperature are related at two sets of conditions by P1*V1/T1 = P2*V2/T2 (absolute temperature must be used).

Thus V1 = V2 *(P2/P1) * (T1/T2)

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