×
INTELLIGENT WORK FORUMS
FOR ENGINEERING PROFESSIONALS

Log In

Come Join Us!

Are you an
Engineering professional?
Join Eng-Tips Forums!
  • Talk With Other Members
  • Be Notified Of Responses
    To Your Posts
  • Keyword Search
  • One-Click Access To Your
    Favorite Forums
  • Automated Signatures
    On Your Posts
  • Best Of All, It's Free!
  • Students Click Here

*Eng-Tips's functionality depends on members receiving e-mail. By joining you are opting in to receive e-mail.

Posting Guidelines

Promoting, selling, recruiting, coursework and thesis posting is forbidden.

Students Click Here

Jobs

flow conversion

flow conversion

flow conversion

(OP)
i want to convert 1356 NM^3/Hr to M^3/Hr.it is very confusing, what is full form of NM^3/Hr. if any one have solution answer me.


cheers,

ushang  

RE: flow conversion

Normal (or standard) volume per unit time is a convention.  You get two people to agree on what the "standard" is and then everyone pretends that the gas is at that pressure and temperature.  It is a useful surrogate for mass flow rate in that you can add Nm3 at any pressure to Nm3 at any other pressure and get a meaningful answer.  The magnitude of "normal" is subject to contract negotiations and government regulations--there is no one value for each parameter that is always used.

Actual volume per unit time is the volume flow rate at actual conditions.

Mass flow rate is not dependent on pressure and temperature so:

m(dot) = q * ρ = qactualactual=qnormalstandard

So if you have volume flow rate at standard conditions (which is what is almost always reported) and you want a velocity you have to convert to volume flow rate at actual conditions.  The equation above shows you how:

qactual=qnormalstandard / ρactual

Then divide by flow area to get velocity.  Always remember that any flow at normal or standard conditions is imaginary and not useful for very many engineering calculations.

David

 

Red Flag This Post

Please let us know here why this post is inappropriate. Reasons such as off-topic, duplicates, flames, illegal, vulgar, or students posting their homework.

Red Flag Submitted

Thank you for helping keep Eng-Tips Forums free from inappropriate posts.
The Eng-Tips staff will check this out and take appropriate action.

Reply To This Thread

Posting in the Eng-Tips forums is a member-only feature.

Click Here to join Eng-Tips and talk with other members!


Resources