Skip to content
PF-095 · Verified method

Tank-to-Tank Air Transfer Calculator

Estimate donor/receiver pressures after specified transfer/equalization.

Inputs

AFFILIATE LINKS

Useful equipment for this calculation

These optional products are directly related to the pneumatic task you are calculating.

If you buy through these links, PneumaForge may receive a commission at no extra cost to you.As an Amazon Associate, PneumaForge earns from qualifying purchases.

ENGINEERING GUIDE

Use the Tank-to-Tank Air Transfer Calculator to estimate donor/receiver pressures after specified transfer/equalization. The calculator uses Tank 1 volume, Tank 1 initial pressure, Tank 2 volume, Tank 2 initial pressure and Reference air transferred from tank 1 to tank 2 and reports final tank states.

How to interpret the result

Read the result in the context of the selected units and pressure basis. For this tool, the primary outputs are final tank states. Change one input at a time when comparing scenarios so the effect of each variable remains clear.

Formula and methodology

PneumaForge applies this verified method: Track mass removed from tank A and added to tank B using PV=mRT; solve final states for specified transferred reference volume/mass or equilibrium condition. The functional engine is shared with related tools in the gas-state family, while this page solves the specific intent represented by compressed air tank transfer calculator.

Track mass removed from tank A and added to tank B using PV=mRT; solve final states for specified transferred reference volume/mass or equilibrium condition.

Variables and inputs

  • Tank 1 volume
  • Tank 1 initial pressure
  • Tank 2 volume
  • Tank 2 initial pressure
  • Reference air transferred from tank 1 to tank 2
  • Air temperature

Worked example

Reproducible example: start with the calculator's default values (Tank 1 volume = 500; Tank 1 initial pressure = 7; Tank 2 volume = 500; Tank 2 initial pressure = 1) and calculate the result. Then change the variable most relevant to your application and compare the new final tank states against the baseline.

Assumptions and limits

Ideal gas; thermal assumption stated for each tank; no one-way-flow hardware dynamics unless added separately.

Engineering tips

  • Use absolute pressure internally even when the interface accepts gauge pressure.
  • State the thermal assumption for fill and blowdown calculations.
  • Receiver volume cannot replace adequate compressor capacity for sustained demand.
  • Keep the inputs used for tank-to-tank air transfer calculator on a consistent engineering basis before comparing alternatives.

Frequently asked questions

What does the Tank-to-Tank Air Transfer Calculator calculate?

It is designed to estimate donor/receiver pressures after specified transfer/equalization. The reported outputs are final tank states.

What inputs does the Tank-to-Tank Air Transfer Calculator use?

The calculator uses Tank 1 volume, Tank 1 initial pressure, Tank 2 volume, Tank 2 initial pressure and Reference air transferred from tank 1 to tank 2. Only use values that represent the same operating condition or design case.

What formula or method is used?

The calculation follows: Track mass removed from tank A and added to tank B using PV=mRT; solve final states for specified transferred reference volume/mass or equilibrium condition. The page also states the assumptions that define where the method is valid.

Which assumptions can affect the result?

Ideal gas; thermal assumption stated for each tank; no one-way-flow hardware dynamics unless added separately.

Can I use different units?

Yes. PneumaForge converts supported units through canonical engineering units. For compressed-air reference flows and pressure bases, the reference pressure and temperature must also remain consistent.