Industrial Fans, Blowers & Air Movement Equipment worked example

Test Cell Capacity at 61% expected test cell uptime: a worked example

This worked example runs the test cell capacity numbers for a tougher week than the baseline: 61% expected test cell uptime instead of the typical 85%. Estimate good fan or blower test cell output from fans per test cycle, available cycles, test cell uptime, and first-pass test yield.

The inputs for this scenario

  • Fans tested per cycle: 1 fans / cycle (held at the documented default)
  • Available test cycles: 24 cycles (held at the documented default)
  • Expected test cell uptime: 61 % (the input this scenario stresses; the baseline uses 85)
  • First-pass test yield: 92 % (held at the documented default)

Working through the calculation

  • The calculation starts from the formula this tool documents: Gross test cell capacity = fans tested per cycle × available test cycles.
  • Good test cell capacity works out to 13.47 fans at these inputs, and this is the headline figure for the scenario.
  • Gross test cell capacity works out to 24 fans at these inputs.
  • Test cell downtime loss works out to 9.36 fans at these inputs.
  • First-pass test yield loss works out to 1.17 fans at these inputs.

How this compares with the baseline

  • Against the tool's baseline example, where expected test cell uptime sits at 85% and the headline result is 18.77 fans, this scenario comes in 28.24% below the baseline at 13.47 fans.
  • Use it when scheduling certification work, sizing a second test cell, or checking whether the rig is the real constraint on a fan order's ship date. A result at this level usually justifies acting on the stressed input before touching anything else, because every other figure in the table is downstream of it.

Results at a glance

  • Good test cell capacity: 13.47 fans (headline result)
  • Gross test cell capacity: 24 fans
  • Test cell downtime loss: 9.36 fans
  • First-pass test yield loss: 1.17 fans

Run it with your numbers

  • To rerun this with your own numbers, open the live Test Cell Capacity calculator, set expected test cell uptime to your actual value, and adjust the remaining inputs to match your operation.

Last reviewed 2026-05-12.