Question about flow from a nitrogen bottle

[Craig K]

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.

 

[russ_watters]

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.

 

[Craig K]

Do not need pressure so to speak just flow and yes it is a small bottle

 

[Baluncore]

2.2 litre * 110 Bar = 242 litres at 1 Bar ;
At 1 litre/minute = 242 minutes.

 

[Baluncore]

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.

 

[Craig K]

https://www.ebay.com.au/itm/1240748...rentrq:5b25e0b11800a4d65cfb9fcdfffe7506|iid:1

 

[Baluncore]

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.

 

[Craig K]

Thanks heaps for you educated answer.