Core Ontology for Petroleum Installations · INF-UFRGS-Ontologies · CNPq INF-UFRGS-ENERGIA inf.ufrgs.br/ontologies/copi dee69df
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fan
exported ⋯ Quality
COPI_0000115
Definition & axiom
Label (EN)
fan
Label (PT-BR)
Definition (EN)
Definition (PT-BR)
Semi-formal axiom (Aristotelian)
Axiom type
LLM classification basis: function-based → ≡
All three source definitions consistently define a fan by its function: 'delivering or exhausting volumes of vapour or gas at low differential pressure'. The identity is given by the designed function, not by specific internal mechanisms like axial vs radial impellers.
Validation status
Why primitive (necessary only)
Reviewer notes
FOL theory & disjointness
First-order logic theory (generated)
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Disjoint with
▸ Expert review
Axiomatization steps
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Source Definitions (3)
FAN — ClassOfFunctionalObject
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cfihos V2.0
fan — TagAndEquipmentClass
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Fan — 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.
primary iso15926 FAN
standard · verbatim
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secondary cfihos fan
standard · verbatim
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secondary posc_caesar Fan
standard · verbatim
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Linked competency questions
  • answered What is the identity-giving function of a fan or blower?
  • answered What process does a fan participate in?
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OWL/Turtle preview
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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 87 · claude-sonnet-4-20250514
Created 2026-04-13 23:43
Updated 2026-09-08 12:26

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