Description
Return usable hatchery-tray area and free area.
Tank geometry, exchange and equipment budgets use explicit volume, flow, mixing and efficiency assumptions. Ideal complete mixing differs from replacing distinct water portions, and energy usage differs from power. Nominal calculations do not establish actual oxygenation, animal welfare or safe installation.
Return usable hatchery-tray area and free area.
When to use this tool
Use Hatchery Tray Usable Area Budget when checking the stated aquaculture geometry, exchange or equipment term.
How to use the tool and how it works
- Enter width, length, edgeMargin, occupiedArea. Use the units and conventions below.
- Run the tool. Correct any format, range, or cross-field input error before interpreting the output.
- Read usableArea, freeArea. Use the output convention below.
Return usable hatchery-tray area and free area. Require nonnegative margin and dimensions covering twice the margin, occupiedArea within usable rectangle; usable = (width-2*margin)*(length-2*margin), free = usable-occupied.1
| Input field | Meaning and units | Accepted input |
|---|---|---|
| width | Width | Required. Finite number. |
| length | Length | Required. Finite number. |
| edgeMargin | Edge Margin | Required. Finite number; minimum 0. |
| occupiedArea | Occupied Area | Required. Finite number; minimum 0. |
| Output field | Interpretation | Returned shape |
|---|---|---|
| usableArea | Usable Area | Required. Finite number. |
| freeArea | Free Area | Required. Finite number. |
{
"input": {
"width": 10,
"length": 20,
"edgeMargin": 1,
"occupiedArea": 100
},
"output": {
"usableArea": 144,
"freeArea": 44
}
}Limitations and assumptions
- This is area bookkeeping, not a stocking-density recommendation, geometric packing solution or welfare assessment.
- Inputs must satisfy both the field types and the cross-field conditions above. Invalid input causes an error; a successful false flag or documented placeholder is a different result.
- 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. Numeric signed-zero results are exported as zero.
Alternative or Complementary methods
Verify actual tank geometry, mixing and equipment performance, and obtain qualified aquaculture/engineering advice for operation and safety.
References
Similar or alternative tools
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