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#1
04-13-2007, 06:10 AM
 bluequimera Guest Posts: n/a
Pounds to Cubic feet

I need help with this
I am trying to convert pounds to cubic feet
of nitrogen gas which it's density is 0.066 and 0.073
hope somebody can give me a formula because I work with different
fluids and gases.
Thanks,

#2
04-13-2007, 09:47 AM
 Unregistered Guest Posts: n/a
Re: Pounds to Cubic feet

I need help with this
I am trying to convert pounds to cubic feet
of nitrogen gas which it's density is 0.066 and 0.073
hope somebody can give me a formula because I work with different
fluids and gases.
Thanks,

Nitrogen at room temperature (20 C, 1 atmosphere) has a density of 0.73 lb per cubic foot. To covert from mass to volume use the following:

Volume = Mass / Density
#3
04-13-2007, 09:50 AM
 ThermoMan Guest Posts: n/a
Re: Pounds to Cubic feet

Nitrogen at room temperature (20 C, 1 atmosphere) has a density of 0.73 lb per cubic foot. To covert from mass to volume use the following:

Volume = Mass / Density
#4
01-15-2010, 10:24 AM
 Unregistered Guest Posts: n/a
Re: Pounds to Cubic feet

It is 0.073 lb/cubic foot not 0.73
#5
11-24-2011, 04:32 AM
 Unregistered Guest Posts: n/a
Re: Pounds to Cubic feet

I am trying to convert pounds to cubic feet
#6
11-24-2011, 06:19 AM
 JohnS Moderator Join Date: Dec 2007 Location: SE Michigan, USA Posts: 9,547 Rep Power: 19
Re: Pounds to Cubic feet

Quote:
 Originally Posted by Unregistered I am trying to convert pounds to cubic feet of helium gas, can someone please help
Like all gases, density varies with temperature and pressure. At 0 °C, 101.325 kPa, density is 0.1787 kg/m³. That converts to 0.011156 lb/ft³.
#7
01-30-2013, 12:45 PM
 Unregistered Guest Posts: n/a
Re: Pounds to Cubic feet

I want to convert BTU/SCF into BTU/GAL,BTU/LBS so i need conversion factor pl rpy
#8
01-30-2013, 02:50 PM
 JohnS Moderator Join Date: Dec 2007 Location: SE Michigan, USA Posts: 9,547 Rep Power: 19
Re: Pounds to Cubic feet

Quote:
 Originally Posted by Unregistered I want to convert BTU/SCF into BTU/GAL,BTU/LBS so i need conversion factor pl rpy
BTU/SCF is normally used with gases. Standard conditions vary by industries, but for fossil fuels are usually 1 atm, 60 °F. To convert to BTU/LB, you need to know the density of the gas at these conditions; that density will depend on the chemical composition of the gas.

BTU/Gal is normally used for liquids. To convert to BTU/LB, you need to know the density of the liquid, which varies with chemical composition and temperature.

A fuel fuels such as propane may exist as a pressurized liquid (around 10 atm) or a gas at 1 atm. To convert between those states, you would have to know what gas and pressure and temperature in the two different states.

There is NO general conversion factor between these. It depends on the substance and conditions, which you didn't identify.

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