Cryogenic Storage & LNG Equipment worked example

Pressure Relief Sizing Cost at 92% share requiring replacement or redesign: a worked example

Push share requiring replacement or redesign up to 92% and the picture changes. This example computes every intermediate figure at that operating point. Use it when pressure relief sizing cost in cryogenic storage and lng equipment is being put through a cryogenic storage and lng equipment weighted-cost review.

The inputs for this scenario

  • Relief devices or vent paths reviewed: 100 devices (unchanged)
  • Relief hardware or sizing cost per device: 45 $ / device (unchanged)
  • Share requiring replacement or redesign: 92 % (raised for this scenario; the documented default is 80)
  • Fixed relief engineering adder: 250 $ (unchanged)

Working through the calculation

  • Applying the documented formula (Variable relief cost = devices reviewed × relief cost per device × share requiring replacement or redesign) to the inputs above produces each figure below.
  • At this operating point the engine returns 4,390 $ for pressure relief sizing cost, the number this scenario is built around.
  • At this operating point the engine returns 43.9 $ / piece for relief cost per reviewed device.
  • At this operating point the engine returns 4,140 $ for variable relief hardware or sizing cost.
  • At this operating point the engine returns 250 $ for fixed relief engineering adder.

How this compares with the baseline

  • Against the tool's baseline example, where share requiring replacement or redesign sits at 80% and the headline result is 3,850 $, this scenario comes in 14.03% above the baseline at 4,390 $.
  • It computes the total relief sizing cost as the count of devices reviewed times the per-device cost times the fraction needing replacement, plus a fixed engineering adder. 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

  • Pressure relief sizing cost: 4,390 $ (headline result)
  • Relief cost per reviewed device: 43.9 $ / piece
  • Variable relief hardware or sizing cost: 4,140 $
  • Fixed relief engineering adder: 250 $

Run it with your numbers

  • Every input above is editable in the live Pressure Relief Sizing Cost calculator, which recalculates instantly and can be shared with the inputs intact.

Last reviewed 2026-05-12.