Heat Exchanger, Coil & Radiator Manufacturing worked example

Test Stand Utilization at 99% target test utilization: a worked example

Push target test utilization up to 99% and the picture changes. This example computes every intermediate figure at that operating point. Use it when test capacity is being reviewed for coils, radiators, condensers, evaporators, oil coolers, or shell and tube exchangers.

The inputs for this scenario

  • Used test stand time: 180 hr (unchanged)
  • Available test stand time: 200 hr (unchanged)
  • Target test utilization: 99 % (raised for this scenario; the documented default is 95)

Working through the calculation

  • Applying the documented formula (Test stand utilization = used test stand time รท available test stand time) to the inputs above produces each figure below.
  • At this operating point the engine returns 90 % for test stand utilization, the number this scenario is built around.
  • At this operating point the engine returns 9 points for gap to utilization target.
  • At this operating point the engine returns 180 hr for used test stand time.
  • At this operating point the engine returns 200 hr for available test stand time.

How this compares with the baseline

  • Against the tool's baseline example, where target test utilization sits at 95% and the headline result is 90 %, this scenario lands almost exactly on the baseline at 90 %.
  • It computes utilization as used bench time divided by available bench time, and the gap in points to your utilization target. 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

  • Test stand utilization: 90 % (headline result)
  • Gap to utilization target: 9 points
  • Used test stand time: 180 hr
  • Available test stand time: 200 hr

Run it with your numbers

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

Last reviewed 2026-05-12.