Question about flow from a nitrogen bottle

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A nitrogen bottle with a capacity of 2.2 liters at 110 Bar can potentially provide a flow rate of 1 liter per minute for approximately 242 minutes, based on calculations of the gas volume at atmospheric pressure. However, the actual duration may vary depending on the specific pressure requirements at the point of use. Some calculations suggest that at a higher flow rate of 9 liters per minute, the bottle would last around 30 minutes, indicating that flow rate significantly impacts the total duration. The discussion highlights the importance of understanding both the bottle's specifications and the desired flow rate for accurate estimations. Overall, the bottle's compressed gas volume and pressure need to be carefully considered for experimental purposes.
Craig K
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I need to know how long a nitrogen bottle will flow for. It is 2.2 Litres 110Bar. I want it to flow at around 1 litre per minute to do an experiment. How long will it last? Sorry if this is a really dumb question.
 
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Craig K said:
I need to know how long a nitrogen bottle will flow for. It is 2.2 Litres 110Bar. I want it to flow at around 1 litre per minute to do an experiment. How long will it last? Sorry if this is a really dumb question.
Usually the rated volume is at atmospheric pressure. Is this a really little bottle?

What pressure do you need at your point of use? If atmospheric I think it's just volume divided by flow rate, or 2.2 min.
 
Do not need pressure so to speak just flow and yes it is a small bottle
 
2.2 litre * 110 Bar = 242 litres at 1 Bar ;
At 1 litre/minute = 242 minutes.
 
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2.2 litre * 110 Bar could also mean only a 2.2 minute supply of gas.
2.2 litre compressed to 110 Bar would have a volume of 2200 / 110 = 20 ml.
You could hold a 20 ml cylinder in your clenched fist.

Please measure and report the dimensions of the cylinder.
 
The data sheet says; "Output @ 9l/pm will flow for around 30mins".
Therefore @ 1 litre/minute it will last for 9 * 30 = 270 minutes.

The bottle looks like 2.2 litres of compressed gas at 110 Bar.
My earlier answer of 242 minutes is close to the truth.
 
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Thanks heaps for you educated answer.
 
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