Calculate free-air and energy cost consumed by dryer purge.
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.
Use the Desiccant Dryer Purge Air Cost Calculator to calculate free-air and energy cost consumed by dryer purge. The calculator uses Dryer rated flow, Purge fraction, Specific energy kWh per m³(ref), Operating hours per year and Electricity price and reports purge air volume; energy/cost.
Read the result in the context of the selected units and pressure basis. For this tool, the primary outputs are purge air volume; energy/cost. Change one input at a time when comparing scenarios so the effect of each variable remains clear.
PneumaForge applies this verified method: Purge flow × specific energy × time. The functional engine is shared with related tools in the dryer-economics family, while this page solves the specific intent represented by desiccant dryer purge air cost calculator.
Purge flow × specific energy × timeReproducible example: start with the calculator's default values (Dryer rated flow = 5000; Purge fraction = 15; Specific energy kWh per m³(ref) = 0.1; Operating hours per year = 4000) and calculate the result. Then change the variable most relevant to your application and compare the new purge air volume; energy/cost against the baseline.
Purge fraction comes from actual dryer data/user input, not a universal desiccant percentage.
It is designed to calculate free-air and energy cost consumed by dryer purge. The reported outputs are purge air volume; energy/cost.
The calculator uses Dryer rated flow, Purge fraction, Specific energy kWh per m³(ref), Operating hours per year and Electricity price. Only use values that represent the same operating condition or design case.
The calculation follows: Purge flow × specific energy × time. The page also states the assumptions that define where the method is valid.
Purge fraction comes from actual dryer data/user input, not a universal desiccant percentage.
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.