Definition & axiom
⚠ Conflicts with the ISO 15926-4 primary definition
Label (EN)
knock out drum
Label (PT-BR)
Definition (EN)
Definition (PT-BR)
Semi-formal axiom (Aristotelian)
Axiom type
LLM classification basis: function-based → ≡
The concept is defined entirely by its designed function to separate relatively small quantities of liquid from a vapor stream. The physical implementation (drum geometry, internals, mechanism) can vary, but the separative function is identity-giving across all definitions.
Validation status
Why primitive (necessary only)
Reviewer notes
FOL theory & disjointness
First-order logic theory (generated)
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Disjoint with
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Expert review
Axiomatization steps
1
Identity-Giving Function
✓ done
KnockOutSeparationFunction → KnockOutSeparationProcess ⊑ MechanicalSeparation
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COPI-Core operation
MechanicalSeparation via process parent SeparationProcess
LLM rationale:
The identity-giving function is the specific type of separation that removes relatively small quantities of liquid from a vapor stream. This is a specialized subtype of general SeparationFunction, distinguished by the vapor-to-liquid phase separation with minimal liquid content expected.
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Expert review
2
Genus Proximus
✓ done
Separator · Assembly
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Genus (genus proximum)
Most specific superclass — may be a domain class like "Valve" or an IOF-Core root.
BFO/IOF-Core Root
bfo:Object branch
bfo:ObjectAggregate branch
bfo:ImmaterialEntity branch
LLM rationale:
All source definitions consistently position knock out drum as a specialized type of separator. The enriched Separator class (function: SeparationFunction, genus: Vessel) is the most specific appropriate superclass. While ISO 15926 also lists VESSEL, Separator is more specific and captures the separative nature that distinguishes this from general containment vessels.
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Expert review
3
Differentia Specifica
✓ done
∃bearerOf.KnockOutSeparationFunction
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Conditions that distinguish
Knock Out Drum
from sibling classes under genus
Separator.
Only what is not already entailed by the genus.
Differentia expression
Differentia (natural language)
LLM rationale:
The differentia is the specialized KnockOutSeparationFunction that distinguishes this from other separator types. The 'relatively small quantities' qualifier in all definitions indicates this is not for bulk liquid-vapor separation but for removing entrained liquid from predominantly vapor streams.
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Expert review
4
Necessary Parts
✓ done
no necessary parts
▼
Consider part-whole relations beyond subsumption:
hasComponentPartAtAllTimes (universal, structurally essential)
· hasComponentPartAtSomeTime (contingent, optional component)
LLM rationale:
These parts are essential for the basic knock out separation function - vessel containment, vapor input, cleaned vapor output, and liquid drainage capability.
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Expert review
5
Process Participation Signature ⟨I, O, T⟩
✓ done
PortionOfGas → PortionOfGas + PortionOfLiquid
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Inputs (I)
Outputs (O)
Transformation (T)
LLM rationale:
The signature reflects the core function: one vapor input stream is transformed into two output streams - a cleaned vapor stream and the knocked-out liquid portion.
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Expert review
More
Alternative labels
none
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Synonyms / alternative labels (comma-separated) — skos:altLabel
Language auto-detected on export (PT if the label contains accents, EN otherwise).
Properties as BFO qualities
0 of 23 selected
▼
Select which CFIHOS/DEXPI properties inhere in every instance of Knock Out Drum as
bfo:Quality subclasses.
Each selected property →
:KnockOutDrumQuality ⊑ bfo:Quality, inheres in :KnockOutDrum
Custom axioms
none
▼
Axioms not produced by the pipeline. Each is appended verbatim as an
rdfs:subClassOf restriction on Knock Out Drum.
Write the restriction block in Turtle syntax (without the leading
rdfs:subClassOf).
Example: [ owl:onProperty :hasPart ; owl:someValuesFrom :Wellhead ]
Cross-standard divergences
none detected yet
▼
Click "Detect divergences" to analyse cross-standard disagreements for this cluster.
Source Definitions (3)
KNOCK OUT DRUM — ClassOfInanimatePhysicalObject
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cfihos V2.0
knock out drum — TagAndEquipmentClass
Definition text hidden (copyrighted standard) — sign in to view, or follow the source link above.
Knock Out Drum — Class
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Provenance tiers (3)
Sources the pipeline cited while building this entry. Verbatim = the quote was copied word-for-word from that source; summary = paraphrased.
OWL/Turtle preview
Download .ttl
Numeric
COPI_* IRIs from copi-iri-map.tsv, with the readable name as a trailing comment. Names not yet in the map stay readable.
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ID 181 · claude-sonnet-4-20250514
Created 2026-04-16 18:12
Updated 2026-09-08 12:26
