Waste-to-Energy Equipment worked example

Ash Handling Capacity at 99% ash handling system availability: a worked example

Push ash handling system availability up to 99% and the picture changes. This example computes every intermediate figure at that operating point. Use it when ash handling capacity in waste-to-energy equipment is being asked to take on more work and you need to know if there is room.

The inputs for this scenario

  • Ash discharged per conveyor cycle: 4 units / cycle (unchanged)
  • Conveyor cycles available per shift: 480 cycles (unchanged)
  • Ash handling system availability: 99 % (raised for this scenario; the documented default is 90)
  • Clean-separation first-pass yield: 97 % (unchanged)

Working through the calculation

  • Applying the documented formula (Gross ash handling capacity = ash handling capacity output per cycle × available ash handling capacity cycles) to the inputs above produces each figure below.
  • At this operating point the engine returns 1,844 units for good ash handling capacity, the number this scenario is built around.
  • At this operating point the engine returns 1,920 units for gross ash handling capacity.
  • At this operating point the engine returns 19.2 units for ash handling capacity downtime loss.
  • At this operating point the engine returns 57.02 units for ash handling capacity yield loss.

How this compares with the baseline

  • Against the tool's baseline example, where ash handling system availability sits at 90% and the headline result is 1,676 units, this scenario comes in 10% above the baseline at 1,844 units.
  • It computes good ash handling capacity as gross conveyor capacity scaled by system availability and clean-separation first-pass yield. The value of this scenario is the size of the gap it exposes: that gap, priced out over a year, is the budget you can justify spending to close it.

Results at a glance

  • Good ash handling capacity: 1,844 units (headline result)
  • Gross ash handling capacity: 1,920 units
  • Ash handling capacity downtime loss: 19.2 units
  • Ash handling capacity yield loss: 57.02 units

Run it with your numbers

  • Every input above is editable in the live Ash Handling Capacity calculator, which recalculates instantly and can be shared with the inputs intact.

Last reviewed 2026-05-12.