Size active composting space from daily wet feedstock, retention time, bulk density, and a user-set surge allowance. The estimate converts mass throughput into cubic-yard capacity and separates normal process volume from peak reserve, helping operators compare vessel, bay, or pad requirements without assuming a universal material density.
Required volume = daily feedstock × 2,000 ÷ bulk density × retention days × (1 + surge allowance).
This is active process capacity, not a complete site footprint. Add curing, finished-compost, aisle, drainage, and equipment areas separately.
Planning estimate only. Verify site-specific engineering, contracts, regulations, and measurement boundaries before making commitments.
At 2.5 tons/day, 21 days, 700 lb/yd³, and 20% surge, the active storage requirement is 180 yd³; average working inventory is 52.5 tons.
Use one consistent facility or program boundary for every input and document whether quantities are measured at collection, receipt, processing, or shipment.
Yes, when all period-based inputs use the same month. The displayed annual wording should then be interpreted as the period you entered.
Use a weighted average for routine reporting or run separate low, typical, and peak cases when density, moisture, composition, or throughput varies materially.
No. The calculation covers the named metric and entered assumptions; permitting, safety, downtime, access, inventory, and local design requirements may need separate review.
Scale accuracy, moisture, inventory timing, contamination, operating hours, and inconsistent system boundaries can all cause actual results to differ.
| Input | Role |
|---|---|
| Primary quantity | Defines the material or resource entering the calculation boundary. |
| Operating assumption | Converts the base quantity into the requested capacity, cost, flow, savings, or rate. |
| Result | Use as a planning estimate and compare it with observed records. |