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Review of the Inland Estimated Recovery System Potential (ERSP) Prototype Calculator (2022) / Chapter Skim
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3 Review of Calculator Algorithms and Mechanics
Pages 17-23

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From page 17...
... The amount of oil and emulsion available to the recovery system (Encounter Rate) each hour is determined by the Swath Width times Speed of Advance times Daily Oil Thickness (from Oil Behavior Module)
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From page 18...
... If the sum of daily ERSP values is greater than the user-specified Spill Volume, then the total ERSP is set to equal the user-specified Spill Volume. Note that the overall ERSP value can be less than the individual daily ERSP because the overall ERSP is forced to not exceed the volume of oil spilled, whereas the daily values are based on the assumed recovery from an infinite area slick of a fixed thickness.
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From page 19...
... This assumption is reasonable if the amount of oil recovered is a small percentage of the recoverable oil. It can be a reasonable assumption until all recoverable oil has been collected, but at that point the oil thickness should reflect that there is no available oil.
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From page 20...
... In contrast, the USCG Inland ERSP Calculator has four oil types and three oil volumes, two waterway configurations, and two flow regimes with associated shoreline types (ignoring Customization Module A)
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From page 21...
... By limiting the possible Nameplate Recovery rates, the inland ERSP severely restricts the potential recovery systems that can be examined using the USCG Inland ERSP Calculator. The BSEE ERSP Calculator determines the MES and automatically reduces the Swath Width used in the calculations to the MES if the user-provided value is too large.
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From page 22...
... An important estimate that the USCG Inland ERSP Calculator could provide is the starting oil thicknesses for the different oil types and system configurations, but that is not an output provided by the calculator. One can look up the daily oil thickness values provided in the appendixes of the USCG Inland ERSP Calculator design document and then apply them to the results of the BSEE ERSP Calculator.
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From page 23...
... . Based on this analysis, boom failure could be mitigated and the calculator could remain simple to use by limiting USCG Inland ERSP Calculator speeds to no more than 1 knot with regular booming and 6 knots for angle booming.
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Key Terms

  • inland ersp
  • uscg inland
  • bsee ersp
  • oil thickness
  • recoverable oil

  • spill volume
  • daily ersp
  • swath width
  • nameplate recovery
  • encounter rate

  • oil behavior
  • behavior module
  • daily oil
  • ersp values
  • recovery module

  • recovery rates
  • estimated recovery
  • recovery rate
  • calculator provides
  • calculator determines

  • customization module
  • specified hour
  • waterway configurations
  • total ersp
  • oil types

  • calculator allows
  • spill volumes
  • operating hours
  • changing storage
  • shoreline types


    • This material may be derived from roughly machine-read images, and so is provided only to facilitate research.
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