Aquarium air pump branch allocation calculator

Calculate branch share table and unaccounted flow with your own figures.

Your numbers

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

Use branch share table and unaccounted flow to compare changes to your inputs. The method and limits below explain the scope.

Examples

Examples

Try the starting example

Measured branch air flows (L/min)
1.2,0.8,1
Measured pump total outlet flow (L/min)
3.2
Branch share table (%)
[40,26.6666666667,33.3333333333]
Unaccounted flow (L/min)
0.2
Maximum-minus-minimum branch flow (L/min)
0.4

Try another scenario

Measured branch air flows (L/min)
1.3,0.8,1.0
Measured pump total outlet flow (L/min)
3.2
Branch share table (%)
[41.935483871,25.8064516129,32.2580645161]
Unaccounted flow (L/min)
0.1
Maximum-minus-minimum branch flow (L/min)
0.5
Calculation method

Calculation method

Branch share table (%)

Shares use sum measured branches; residual=pump total-sum branches.

Unaccounted flow (L/min)

Shares use sum measured branches; residual=pump total-sum branches.

Maximum-minus-minimum branch flow (L/min)

Shares use sum measured branches; residual=pump total-sum branches.

Symbols and units
a
Measured branch air flows (L/min)
b
Measured pump total outlet flow (L/min)

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

  • Describes measured allocation, not a prediction from unmeasured branch resistance. Supported limits: All required fields must be finite values of the exact declared type and within displayed bounds. Lists contain1–1000 finite numbers. JSON tables are numeric rectangular rows, at most100 rows and30 columns; individual tools have stricter shape/domain constraints. Describes measured allocation, not a prediction from unmeasured branch resistance.
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