Plumbing air-side condensate mass calculator

Calculate condensate flow and collected condensate with your own figures.

Your numbers

Use the units shown. Results update as you change valid inputs.

Use condensate flow and collected condensate to compare changes to your inputs. The method and limits below explain the scope.

Examples

Examples

Try the starting example

Air mass flow (kg dry air/s)
1.5
Inlet humidity ratio (kg/kg)
0.012
Outlet humidity ratio (kg/kg)
0.008
Operating duration (hours)
8
Condensate flow (kg/hour)
21.6
Collected condensate (kg)
172.8

Try another scenario

Air mass flow (kg dry air/s)
2.5
Inlet humidity ratio (kg/kg)
0.012
Outlet humidity ratio (kg/kg)
0.008
Operating duration (hours)
8
Condensate flow (kg/hour)
36
Collected condensate (kg)
288
Calculation method

Calculation method

Condensate flow (kg/hour)

Dry-air mass flow × humidity-ratio reduction; kg water approximately litres only if density is assumed separately.

Collected condensate (kg)

Dry-air mass flow × humidity-ratio reduction; kg water approximately litres only if density is assumed separately.

Symbols and units
a
Air mass flow (kg dry air/s)
b
Inlet humidity ratio (kg/kg)
c
Outlet humidity ratio (kg/kg)
d
Operating duration (hours)

Use the units shown. A list keeps the order in which you enter its values. The symbol ^ means “raised to the power of”.

Assumptions & limits

Assumptions & limits

  • User-supplied measurements and assumptions; Dry-air mass flow × humidity-ratio reduction; kg water approximately litres only if density is assumed separately. Supported limits: Finite numeric values bounded to 1e9 magnitude; lists and tables contain 1–100 records unless a stricter bound is stated. Inputs use the units shown. Lists explicitly paired by a method must have matching lengths; independent polynomial coefficient vectors may differ. Respect stated physical, interpolation, policy and computational domain limits.
Are these inputs private?

These calculations run in your browser. A shared link contains the values you choose to share. Only questions submitted to the separate AI finder are sent to OpenAI.

Share this page
Share this calculator

Leave unchecked to share the page without your entered values.