I have a gas cylinder pressurised to 16,600kPa and it holds 9.2m^3 of Nitrogen.(adsbygoogle = window.adsbygoogle || []).push({});

There's a regulator that steps the gas pressure down to 2.8kPa above ambient and exhausts through a 1/4 NPT fitting (A=32mm²?).

Assuming the gas release is slow enough to neglect temperature changes, is there a simplified equation to calculate how long until the cylinder is empty?

A search of similar threads here all have high flow rate and temperature complications.

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# Simplified depressurisation time

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