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PF-121 · Verified method

Air Dryer Condensate Removal Calculator

Estimate water removed by dryer from inlet moisture and target dew point.

Inputs

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ENGINEERING GUIDE

Use the Air Dryer Condensate Removal Calculator to estimate water removed by dryer from inlet moisture and target dew point. The calculator uses Dryer inlet reference flow, Inlet dew point, Absolute pressure and Target pressure dew point and reports water removed per time.

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 water removed per time. 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: Moisture mass balance between inlet and outlet vapor content. The functional engine is shared with related tools in the condensate family, while this page solves the specific intent represented by compressed air dryer condensate calculator.

Moisture mass balance between inlet and outlet vapor content

Variables and inputs

  • Dryer inlet reference flow
  • Inlet dew point
  • Absolute pressure
  • Target pressure dew point

Worked example

Reproducible example: start with the calculator's default values (Dryer inlet reference flow = 5000; Inlet dew point = 10; Absolute pressure = 8; Target pressure dew point = 3) and calculate the result. Then change the variable most relevant to your application and compare the new water removed per time against the baseline.

Assumptions and limits

Mass basis avoids the error of comparing g/m³ at different pressures directly. Water density only used to convert mass to liquid volume.

Engineering tips

  • Use absolute total pressure in psychrometric calculations.
  • Compare moisture on a dry-air mass basis when pressure changes significantly.
  • Use correction factors from the actual dryer manufacturer rather than universal tables.
  • Keep the inputs used for air dryer condensate removal calculator on a consistent engineering basis before comparing alternatives.

Frequently asked questions

What does the Air Dryer Condensate Removal Calculator calculate?

It is designed to estimate water removed by dryer from inlet moisture and target dew point. The reported outputs are water removed per time.

What inputs does the Air Dryer Condensate Removal Calculator use?

The calculator uses Dryer inlet reference flow, Inlet dew point, Absolute pressure and Target pressure dew point. Only use values that represent the same operating condition or design case.

What formula or method is used?

The calculation follows: Moisture mass balance between inlet and outlet vapor content. The page also states the assumptions that define where the method is valid.

Which assumptions can affect the result?

Mass basis avoids the error of comparing g/m³ at different pressures directly. Water density only used to convert mass to liquid volume.

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.