Welcome to OnlineConversion.com Forums

 OnlineConversion Forums Converting M3/Min to KG/Hr
 [ Home ] [ Forum Home ] Register FAQ Calendar Search Today's Posts Mark Forums Read

 Convert and Calculate Post any conversion related questions and discussions here. If you're having trouble converting something, this is where you should post.* Guest Posting is allowed.

#1
09-30-2009, 08:31 AM
 Unregistered Guest Posts: n/a
Converting M3/Min to KG/Hr

Hi
i'm looking to convert an air flow reading of 1.380 +/-0.050 M3/Min to KG/Hr. Is this possible?

Andy
#2
09-30-2009, 09:08 AM
 JohnS Double Ultimate Supreme Member Join Date: Dec 2007 Location: SE Michigan, USA Posts: 9,233 Rep Power: 18
Re: Converting M3/Min to KG/Hr

Quote:
 Originally Posted by Unregistered Hi i'm looking to convert an air flow reading of 1.380 +/-0.050 M3/Min to KG/Hr. Is this possible? Andy
Air flow volume literally has no meaning unless the temperature and pressure are stated. In addition, you need to know if it is dry air, or, if moist, either the dew point or relative humidity.

With temperature, pressure, and humidity, you can calculate (or lookup) the density and convert.
#3
10-01-2009, 03:32 AM
 Unregistered Guest Posts: n/a
Re: Converting M3/Min to KG/Hr

Hello John,

thanks for the reply. Please assumption that the temperature & pressure are the same. The test equipment we have is set up to read Kg/Hr which is an industry standard and unfortunately the diagram we have to work from only shows the Air flow reading to match against as 1.38 M3/Min.

So we assume they're would be a way of converting the 1.38 figure to a Kg/Hr?

Cheers, Andy
#4
10-01-2009, 03:43 AM
 JohnS Double Ultimate Supreme Member Join Date: Dec 2007 Location: SE Michigan, USA Posts: 9,233 Rep Power: 18
Re: Converting M3/Min to KG/Hr

Quote:
 Originally Posted by Unregistered Hello John, thanks for the reply. Please assumption that the temperature & pressure are the same. The test equipment we have is set up to read Kg/Hr which is an industry standard and unfortunately the diagram we have to work from only shows the Air flow reading to match against as 1.38 M3/Min. So we assume they're would be a way of converting the 1.38 figure to a Kg/Hr? Cheers, Andy
The same as what? Gas expands to fill the volume available, so volume has no meaning without a clear statement of the pressure and temperature at which it is measured.

In metric, gas volumes are often measured at "normal" conditions of 101.325 kPa, 0 °C, and labelled normal cubic meters, Nm³. Mass of dry air is about 1.29 kg/Nm³, but it DOES vary with temperature, pressure, and humidity.

1.38 m³/min is 82.8 m³/h.
Assuming this volume is measured at "normal" the mass flow is 106.8 kg/h. Vs. "normal" at any other conditions, the density will be directly proportional to absolute pressure and inversely proportional to absolute temperature. Humid air will be lighter.

 Thread Tools Display Modes Linear Mode

 Posting Rules You may post new threads You may post replies You may not post attachments You may not edit your posts BB code is On Smilies are On [IMG] code is On HTML code is Off Forum Rules
 Forum Jump User Control Panel Private Messages Subscriptions Who's Online Search Forums Forums Home Main Forums     Convert and Calculate     Resources     General Chat

All times are GMT -8. The time now is 01:46 PM.