Greenhouse, Indoor Farming & Agri-Processing worked example

Climate Control Load at 17% duty-cycle and door-opening allowance: a worked example

What does the result look like when duty-cycle and door-opening allowance reaches 17%? The full calculation is worked below with real intermediate numbers. Use it when checking whether installed dehumidification capacity can hold VPD overnight, when sizing equipment for a planned canopy expansion, or when comparing a recipe change (e.g., longer photoperiod) against the climate envelope.

The inputs for this scenario

  • Daily moisture load to remove: 720 pints / day (unchanged)
  • Installed dehumidification removal capacity: 60 pints / hour (unchanged)
  • Duty-cycle and door-opening allowance: 17 % (raised for this scenario; the documented default is 15)

Working through the calculation

  • Applying the documented formula (Base dehumidifier runtime = daily moisture load to remove รท installed dehumidification removal capacity) to the inputs above produces each figure below.
  • At this operating point the engine returns 14.04 hr for required daily climate-control runtime, the number this scenario is built around.
  • At this operating point the engine returns 12 hr for base dehumidifier runtime.
  • At this operating point the engine returns 17 % for duty-cycle and door-opening allowance.
  • At this operating point the engine returns 60 pieces / min for installed dehumidification removal capacity.

How this compares with the baseline

  • Against the tool's baseline example, where duty-cycle and door-opening allowance sits at 15% and the headline result is 13.8 hr, this scenario comes in 1.74% above the baseline at 14.04 hr.
  • A figure at this level is achievable when duty-cycle and door-opening allowance is genuinely sustained, not just peaked for a shift. It uses a flat daily moisture load, so it does not model hourly transpiration swings tied to the photoperiod, latent load from irrigation events, or capacity derating as room temperature and humidity fall.

Results at a glance

  • Required daily climate-control runtime: 14.04 hr (headline result)
  • Base dehumidifier runtime: 12 hr
  • Duty-cycle and door-opening allowance: 17 %
  • Installed dehumidification removal capacity: 60 pieces / min

Run it with your numbers

  • Every input above is editable in the live Climate Control Load calculator, which recalculates instantly and can be shared with the inputs intact.

Last reviewed 2026-05-12.