UV Curing worked example

UV System Cooling Requirement with uv system electrical input of 8 kW: a worked example

Suppose uv system electrical input falls to 8 kW. This page works the full calculation at that level so you can see exactly which result moves and by how much. Size chiller and exhaust capacity for a UV cure system from input power, the share of input that becomes heat to remove, and runtime.

The inputs for this scenario

  • UV system electrical input: 8 kW (the input this scenario stresses; the baseline uses 16)
  • Heat-to-cooling fraction: 0.7 x (held at the documented default)
  • System runtime fraction per hour: 1 hr / hr (held at the documented default)

Working through the calculation

  • The calculation starts from the formula this tool documents: Estimated heat to remove (kW) = system input × heat-to-cooling fraction × runtime fraction.
  • Total load works out to 5.6 BTU / hr (cooling) at these inputs, and this is the headline figure for the scenario.
  • Hourly equivalent works out to 5.6 BTU / hr (cooling) / hr at these inputs.
  • Input load works out to 8 BTU / hr (cooling) at these inputs.
  • Load factor works out to 0.7 x at these inputs.

How this compares with the baseline

  • Against the tool's baseline example, where uv system electrical input sits at 16 kW and the headline result is 11.2 BTU / hr (cooling), this scenario comes in 50% below the baseline at 5.6 BTU / hr (cooling).
  • It estimates the cooling capacity in BTU/hr required to remove waste heat from a UV system, from its electrical input, the fraction that becomes heat to be removed, and the runtime fraction per hour. When the numbers land here, the stressed input is the lever to work; the walkthrough above shows exactly how much each output recovers as it climbs back toward the baseline.

Results at a glance

  • Total load: 5.6 BTU / hr (cooling) (headline result)
  • Hourly equivalent: 5.6 BTU / hr (cooling) / hr
  • Input load: 8 BTU / hr (cooling)
  • Load factor: 0.7 x

Run it with your numbers

  • To rerun this with your own numbers, open the live UV System Cooling Requirement calculator, set uv system electrical input to your actual value, and adjust the remaining inputs to match your operation.

Last reviewed 2026-05-12.