Hello sir/madam, can you please explain me how to calculate the volume of compressed hydrogen gas filled in a cylinder.
From India, undefined
From India, undefined
To find the volume of gas available from a compressed gas cylinder, apply the Ideal Gas Law (PV = nRT).
In a high-pressure cylinder, the volume will be affected by the content's comprehensibility factor Z (PV = ZnRT).
The Ideal Gas Law PV = nRT
Where:
P is pressure
V is volume
n is the number of moles
R is the gas constant
T is the absolute temperature
When the temperature is kept constant, we can derive the equation:
P (1) x V (1) = P (2) x V (2)
Where:
P (1) is the pressure of the compressed gas in the cylinder (psi)
V (1) is the internal volume of the cylinder, often referred to as water volume (liter)*
P (2) is the atmospheric pressure (1 atm - 14.7 psi)
V (2) is the volume of gas at pressure P (2) (liter).
For example, an AL sized cylinder is filled with nitrogen at 2000 psi. What is the gas volume of nitrogen from the cylinder?
P (1) is 2000 psi
V (1) is the internal volume of AL cylinder 29.5 liter*
P (2) is 14.7 psi
V (2) is the unknown volume of gas
Solving the equation above for V (2) gives:
V (2) = [p (1) x V (1)]/P (2) = (2000 psi x 29.5 liters)/14.7 psi = 4013 liters (approximately 140 cu. ft.)
From India, Delhi
139In a high-pressure cylinder, the volume will be affected by the content's comprehensibility factor Z (PV = ZnRT).
The Ideal Gas Law PV = nRT
Where:
P is pressure
V is volume
n is the number of moles
R is the gas constant
T is the absolute temperature
When the temperature is kept constant, we can derive the equation:
P (1) x V (1) = P (2) x V (2)
Where:
P (1) is the pressure of the compressed gas in the cylinder (psi)
V (1) is the internal volume of the cylinder, often referred to as water volume (liter)*
P (2) is the atmospheric pressure (1 atm - 14.7 psi)
V (2) is the volume of gas at pressure P (2) (liter).
For example, an AL sized cylinder is filled with nitrogen at 2000 psi. What is the gas volume of nitrogen from the cylinder?
P (1) is 2000 psi
V (1) is the internal volume of AL cylinder 29.5 liter*
P (2) is 14.7 psi
V (2) is the unknown volume of gas
Solving the equation above for V (2) gives:
V (2) = [p (1) x V (1)]/P (2) = (2000 psi x 29.5 liters)/14.7 psi = 4013 liters (approximately 140 cu. ft.)
From India, Delhi
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