Description
Return share=returnVolume/circulatedVolume, requiring positive circulatedVolume and returnVolume within zero and circulatedVolume.
An indoor-growing record or design budget combines quantities such as tray area, operating time, water volume, electrical energy, and light output. Ratios depend on a stated production boundary and period. Supplied conversion factors and idealized geometry need to remain separate from measured equipment and crop performance.
Return share=returnVolume/circulatedVolume, requiring positive circulatedVolume and returnVolume within zero and circulatedVolume.
When to use this tool
Use Nutrient Return Volume Share when you need one stated production, lighting, water, or geometry term from a consistently defined growing-system budget.
How to use the tool and how it works
- Enter returnVolume, circulatedVolume. Use the units and conventions below.
- Run the tool. Correct any format, range, or cross-field input error before interpreting the output.
- Read share. Use the output convention below.
Return share=returnVolume/circulatedVolume, requiring positive circulatedVolume and returnVolume within zero and circulatedVolume.1
| Input field | Meaning and units | Accepted input |
|---|---|---|
| returnVolume | Return Volume | Required. Finite number; minimum 0. |
| circulatedVolume | Circulated Volume | Required. Finite number; strictly above 0. |
| Output field | Interpretation | Returned shape |
|---|---|---|
| share | Dimensionless fraction using the denominator stated in the mechanics; not a percentage numeral. | Required. Finite number. |
{
"input": {
"returnVolume": 8,
"circulatedVolume": 10
},
"output": {
"share": 0.8
}
}Limitations and assumptions
- Both volumes must refer to the same interval and loop boundary. Recovery fraction does not measure nutrient concentration, water quality, crop uptake, or irrigation suitability.
- The field tables state structural bounds; the mechanics also specify cross-field constraints. Malformed inputs and unsupported domains cause errors. A successful false flag, empty branch value, or zero placeholder has the meaning stated above and is distinct from an input error.
- Numeric calculations use binary floating point unless exact decimal-integer arithmetic is explicitly stated. No hidden measurement tolerance or decimal rounding is added; nonfinite or out-of-contract results are rejected. Signed zero is exported as zero.
Alternative or Complementary methods
Compare the supplied budget with measured system records and keep the same production boundary. Equipment selection, installation, and crop requirements need an appropriate engineering or agronomic assessment.
References
Similar or alternative tools
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Convert supplied condensate volume by mass conservation between explicit densities.
- Nutrient Loop Top Bottom Pressure Head Gap
Supplied static head and signed pressure-loss bookkeeping.