Coffee, Tea, Roasting & Dry Goods Processing worked example

Nitrogen Flush Usage at 99% gas transfer efficiency: a worked example

This scenario runs the nitrogen flush usage calculation on the strong side: 99% gas transfer efficiency, with every other input held at its documented default. planning nitrogen demand for modified-atmosphere or low-oxygen packaging

The inputs for this scenario

  • Packages nitrogen flushed: 8,500 units (unchanged)
  • Nitrogen volume per package: 0.18 units (unchanged)
  • Gas transfer efficiency: 99 % (raised for this scenario; the documented default is 88)

Working through the calculation

  • Applying the documented formula (Theoretical nitrogen flush usage = packages nitrogen flushed × nitrogen use per package) to the inputs above produces each figure below.
  • At this operating point the engine returns 1,545 ft³ for required nitrogen flush usage, the number this scenario is built around.
  • At this operating point the engine returns 1,530 ft³ for theoretical nitrogen flush usage.
  • At this operating point the engine returns 15.45 ft³ for nitrogen flush usage loss allowance.
  • At this operating point the engine returns 99 % for nitrogen flush efficiency.

How this compares with the baseline

  • Against the tool's baseline example, where gas transfer efficiency sits at 88% and the headline result is 1,739 ft³, this scenario comes in 11.11% below the baseline at 1,545 ft³.
  • Use it to size a nitrogen cylinder or generator for a planned run, or to check whether actual gas consumption matches what the line should be drawing. Treat this as a target state: the delta against the baseline quantifies what the improvement is worth before you commit to chasing it.

Results at a glance

  • required nitrogen flush usage: 1,545 ft³ (headline result)
  • theoretical nitrogen flush usage: 1,530 ft³
  • nitrogen flush usage loss allowance: 15.45 ft³
  • nitrogen flush efficiency: 99 %

Run it with your numbers

  • Every input above is editable in the live Nitrogen Flush Usage calculator, which recalculates instantly and can be shared with the inputs intact.

Last reviewed 2026-05-12.