Carbon Capture & CO₂ Compression Equipment worked example

Maintenance Interval at 7.2% access, lockout and restart allowance: a worked example in carbon capture & co₂ compression equipment

Here is what the math looks like when conditions slip. We hold every other input steady and drop access, lockout and restart allowance to 7.2%, then walk the calculation through step by step. Estimate maintenance labor time for scheduled service on capture contactors, compressors, blowers, dryers, exchangers, analyzers, or seal systems.

The inputs for this scenario

  • Maintenance tasks due this interval: 120 tasks (held at the documented default)
  • Technician task completion rate: 12 tasks / min (held at the documented default)
  • Access, lockout and restart allowance: 7.2 % (the input this scenario stresses; the baseline uses 10)

Working through the calculation

  • The calculation starts from the formula this tool documents: Base maintenance task time = maintenance tasks due ÷ maintenance task completion rate.
  • Total maintenance interval labor time works out to 10.72 min at these inputs, and this is the headline figure for the scenario.
  • Base maintenance task time works out to 10 min at these inputs.
  • Access and restart allowance works out to 7.2 % at these inputs.
  • Maintenance task completion rate works out to 12 pieces / min at these inputs.

How this compares with the baseline

  • Against the tool's baseline example, where access, lockout and restart allowance sits at 10% and the headline result is 11 min, this scenario comes in 2.55% below the baseline at 10.72 min.
  • The practical read: the gap between this scenario and the baseline is entirely attributable to access, lockout and restart allowance, so recovering it is worth quantifying in dollars before considering equipment or staffing changes. It assumes a single steady completion rate across all tasks; mixed easy/hard tasks or crew fatigue on long shifts will skew the real time, so treat it as a planning estimate, not a guaranteed duration.

Results at a glance

  • Total maintenance interval labor time: 10.72 min (headline result)
  • Base maintenance task time: 10 min
  • Access and restart allowance: 7.2 %
  • Maintenance task completion rate: 12 pieces / min

Run it with your numbers

  • To rerun this with your own numbers, open the live Maintenance Interval calculator, set access, lockout and restart allowance to your actual value, and adjust the remaining inputs to match your operation.

Last reviewed 2026-05-12.