Industrial Fans, Blowers & Air Movement Equipment worked example

Test Cell Capacity at 98% expected test cell uptime: a worked example

Push expected test cell uptime up to 98% and the picture changes. This example computes every intermediate figure at that operating point. Use it when checking whether airflow, pressure, vibration, noise, or performance test capacity can support the production schedule.

The inputs for this scenario

  • Fans tested per cycle: 1 fans / cycle (unchanged)
  • Available test cycles: 24 cycles (unchanged)
  • Expected test cell uptime: 98 % (raised for this scenario; the documented default is 85)
  • First-pass test yield: 92 % (unchanged)

Working through the calculation

  • Applying the documented formula (Gross test cell capacity = fans tested per cycle × available test cycles) to the inputs above produces each figure below.
  • At this operating point the engine returns 21.64 fans for good test cell capacity, the number this scenario is built around.
  • At this operating point the engine returns 24 fans for gross test cell capacity.
  • At this operating point the engine returns 0.48 fans for test cell downtime loss.
  • At this operating point the engine returns 1.88 fans for first-pass test yield loss.

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 15.29% above the baseline at 21.64 fans.
  • It computes the good (certifiable) number of fans your test cell can clear by discounting gross cycle capacity for chamber uptime and first-pass test 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 test cell capacity: 21.64 fans (headline result)
  • Gross test cell capacity: 24 fans
  • Test cell downtime loss: 0.48 fans
  • First-pass test yield loss: 1.88 fans

Run it with your numbers

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

Last reviewed 2026-05-12.