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exported equivalent COPI_0000115
Fan
IRI: https://www.inf.ufrgs.br/ontologies/copi/COPI_0000115
Generated onGerado em 2026-04-13
Natural Language DefinitionDefinição em Linguagem Natural
EN
A fan is an assembly that bears a gas movement function for delivering or exhausting volumes of vapor or gas at low differential pressure.
PT-BR
Um ventilador é um conjunto que possui uma função de movimentação de gás para fornecer ou exaurir volumes de vapor ou gás com baixa pressão diferencial.
Formal AxiomsAxiomas Formais
Semi-formal (Aristotelian)Semi-formal (Aristotélico)
Every fan is an assembly that bears a gas movement function, and every assembly that bears a gas movement function is a fan.
First-Order Logic TheoryTeoria em Lógica de Primeira Ordem
[Definition]∀x (Fan(x) ↔ Assembly(x) ∧ ∃f (GasMovementFunction(f) ∧ bearerOf(x,f))) — Steps 1–3: genus + identity-giving function [Function axiom: GasMovementFunction]∀f (GasMovementFunction(f) → ∀p (realizedIn(f,p) → GasMovementProcess(p)) ∧ ∃p (GasMovementProcess(p) ∧ realizedIn(f,p))) — Step 1: ∀ preserves type-type identity; ∃ rules out vacuous functions never realised [Process participation signature]∀x ∀f ((Fan(x) ∧ GasMovementFunction(f) ∧ bearerOf(x,f)) → ∃m (GasPortion(m) ∧ participatesIn(m,f)) ∧ ∃e (GasPortion(e) ∧ participatesIn(e,f)) ∧ processType(f,PressureIncrease)) — Step 5: typed participants in the realising process
OWL 2 / Turtle
@prefix copi: <https://www.inf.ufrgs.br/ontologies/copi/> . @prefix : <https://www.inf.ufrgs.br/ontologies/copi/> . @prefix owl: <http://www.w3.org/2002/07/owl#> . @prefix rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#> . @prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> . @prefix xsd: <http://www.w3.org/2001/XMLSchema#> . @prefix bfo: <http://purl.obolibrary.org/obo/> . @prefix iof-core: <https://spec.industrialontologies.org/ontology/construct/> . @prefix iof-av: <https://spec.industrialontologies.org/ontology/annotation/> . @prefix skos: <http://www.w3.org/2004/02/skos/core#> . @prefix qudt: <http://qudt.org/schema/qudt/> . @prefix dcterms: <http://purl.org/dc/terms/> . @prefix foaf: <http://xmlns.com/foaf/0.1/> . @prefix apv: <http://inf.ufrgs.br/ontologies/apv#> . ### COPI — Core Ontology for Petroleum Installations ### Class module: Fan <https://www.inf.ufrgs.br/ontologies/copi> rdf:type owl:Ontology ; dcterms:title "Core Ontology for Petroleum Installations (COPI)"@en ; dcterms:title "Ontologia Core para Instalações de Petróleo (COPI)"@pt-br ; dcterms:description "BFO/IOF-Core conformant ontology of equipment classes for petroleum production plants, developed using the five-step RDL enrichment method."@en ; skos:scopeNote "Material artifacts (bfo:material_entity) that (i) are part of a petroleum production plant, and (ii) bear at least one function whose realization involves the transport (e.g. production and injection), processing (separation and other processes), control, monitoring, measurement, containment or offloading of material or energy."@en ; skos:scopeNote "Artefatos materiais (bfo:material_entity) que (i) fazem parte de uma planta de produção de petróleo, e (ii) possuem ao menos uma função cuja realização envolve o transporte (p. ex. produção e injeção), processamento (separação e outros processos), controle, monitoramento, medição, contenção ou escoamento de material ou energia."@pt-br ; skos:scopeNote "COPI provides high-level equipment categories defined by function to demonstrate the defined-class mechanism. Equipment subtypes are annotated with references to CFIHOS and PCA RDL terms. COPI is not a reference data library; organizations should use CFIHOS, PCA RDL, or ISO 14224 for comprehensive equipment classification."@en ; skos:scopeNote "COPI fornece categorias de alto nível de equipamentos definidas por função para demonstrar o mecanismo de classe definida. Os subtipos de equipamentos são anotados com referências aos termos do CFIHOS e do PCA RDL. COPI não é uma biblioteca de dados de referência; organizações devem utilizar o CFIHOS, o PCA RDL ou a ISO 14224 para classificação abrangente de equipamentos."@pt-br ; owl:versionInfo "1.1.0-104-g4d16eff" ; owl:imports <https://spec.industrialontologies.org/ontology/core/Core/> ; owl:imports <http://purl.obolibrary.org/obo/bfo/2020/bfo.owl> ; dcterms:creator "Nicolau Oyhenard dos Santos"@en ; dcterms:contributor "Cauã Antunes" ; dcterms:contributor "Haroldo Rojas" ; dcterms:contributor "Rafael Petry" ; dcterms:contributor "Régis Romeu" ; dcterms:contributor "Mara Abel" ; dcterms:isPartOf <https://inf.ufrgs.br/projetos/OntoKG> ; dcterms:publisher "Universidade Federal do Rio Grande do Sul (UFRGS)"@en ; dcterms:license <https://creativecommons.org/licenses/by/4.0/> ; dcterms:created "2026-04-08"^^xsd:date ; dcterms:modified "2026-07-13"^^xsd:date ; apv:GlobalMinLanguageCoverage "en pt-br" ; apv:ClassURIFormationRule "https://www[.]inf[.]ufrgs[.]br/ontologies/copi/(COPI_[0-9]{7}|[A-Z][A-Za-z0-9]*)" ; apv:ClassMinAnnotationCoverage "rdfs:label https://spec.industrialontologies.org/ontology/annotation/naturalLanguageDefinition" . iof-av:naturalLanguageDefinition rdf:type owl:AnnotationProperty ; apv:MinAnnotationLength 20 . ### Identity-giving function :GasMovementFunction rdf:type owl:Class ; rdfs:subClassOf iof-core:DesignedFunction ; rdfs:subClassOf [ rdf:type owl:Restriction ; owl:onProperty bfo:BFO_0000054 ; # realizedIn owl:allValuesFrom :GasMovementProcess ] ; rdfs:subClassOf [ rdf:type owl:Restriction ; owl:onProperty bfo:BFO_0000054 ; # realizedIn owl:someValuesFrom :GasMovementProcess ] ; rdfs:label "gas movement function"@en ; rdfs:label "função de movimentação de gás"@pt-br . ### Process type :GasMovementProcess rdf:type owl:Class ; rdfs:subClassOf iof-core:PlannedProcess ; rdfs:label "gas movement process"@en ; rdfs:label "processo de movimentação de gás"@pt-br . :GasMovementProcess rdfs:subClassOf [ rdf:type owl:Restriction ; owl:onProperty iof-core:hasInput ; owl:someValuesFrom :GasPortion ] ; rdfs:subClassOf [ rdf:type owl:Restriction ; owl:onProperty iof-core:hasSpecifiedOutput ; owl:someValuesFrom :GasPortion ] . ### Equipment universal: Fan :Fan rdf:type owl:Class ; owl:equivalentClass [ rdf:type owl:Class ; owl:intersectionOf ( iof-core:Assembly [ rdf:type owl:Restriction ; owl:onProperty iof-core:hasFunction ; # Object branch (MaterialArtifact/Assembly/Object/FiatObjectPart) owl:someValuesFrom :GasMovementFunction ] ) ] ; rdfs:label "fan"@en ; rdfs:label "ventilador"@pt-br ; iof-av:naturalLanguageDefinition "A fan is an assembly that bears a gas movement function for delivering or exhausting volumes of vapor or gas at low differential pressure."@en ; skos:definition "A fan is an assembly that bears a gas movement function for delivering or exhausting volumes of vapor or gas at low differential pressure."@en ; iof-av:naturalLanguageDefinition "Um ventilador é um conjunto que possui uma função de movimentação de gás para fornecer ou exaurir volumes de vapor ou gás com baixa pressão diferencial."@pt-br ; iof-av:semiFormalNaturalLanguageAxiom "Every fan is an assembly that bears a gas movement function, and every assembly that bears a gas movement function is a fan."@en ; iof-av:firstOrderLogicAxiom "∀x(Fan(x) ↔ (Assembly(x) ∧ ∃f(GasMovementFunction(f) ∧ bearerOf(x,f))))"@en ; # Disjointness: Fan and Pump [] rdf:type owl:AllDisjointClasses ; owl:members ( :Fan :Pump ) . # Disjointness: Fan and Compressor [] rdf:type owl:AllDisjointClasses ; owl:members ( :Fan :Compressor ) .
Axiomatization Decision LogRegistro de Decisões
1 Identity-Giving FunctionFunção Identitária
Function class
GasMovementFunction ⊑ DesignedFunction
Realized in
GasMovementProcess ⊑ PlannedProcess
The identity-giving function is moving gas/vapor volumes at low differential pressure. This distinguishes fans from compressors (high pressure) and from pumps (liquids). All definitions converge on this low-pressure gas movement capability.
2 Genus DeterminationDeterminação do Gênero
Assemblybfo:Object (BFO_0000030)
No domain-specific superclass like 'GasMovementEquipment' exists in the parent_candidates or enriched classes. Fans are causally unified rotating machinery with removable subcomponents (impeller, housing, motor, bearings) that can be assembled/disassembled while maintaining single-unit identity for maintenance purposes.
3 Differentia SpecificaDiferença Específica
∃bearerOf.GasMovementFunction

Bears a gas movement function for delivering or exhausting gas/vapor at low differential pressure.

The differentia is the gas movement function specifically at low differential pressure. This is both necessary (all fans must have this function) and sufficient (any assembly with this function is by definition a fan).
4 Necessary PartsPartes Necessárias

No necessary parts recorded.

These three components are universal across all fan types - axial, radial, centrifugal all require an impeller, housing, and shaft. Drive mechanism varies (electric motor, engine, etc.) so not included at this level.
Process Participation SignatureAssinatura de Participação em Processo
InputsEntradas
{'type': 'GasPortion', 'count': 1, 'constraints': 'at atmospheric or low pressure'}
OutputsSaídas
{'type': 'GasPortion', 'count': 1, 'constraints': 'with added kinetic energy and slight pressure increase'}
TransformationTransformação
mechanical energy added to gas stream with low pressure differential
Fans take in gas at one location and discharge it at another with added energy but characteristically low pressure rise, distinguishing from compressors.
Disjoint WithDisjunto com
Pump Compressor
C2: Pump, Compressor. Process signatures are incompatible: fans handle gases at low pressure, pumps handle liquids, compressors provide high pressure ratios. These represent different equipment categories with incompatible operational signatures.
MetadataMetadados
COPI IDCOPI IDCOPI_0000115
IRIIRIhttps://www.inf.ufrgs.br/ontologies/copi/COPI_0000115
StatusStatusexported
Axiom modeModoequivalent
CreatedCriado2026-04-13
UpdatedAtualizado2026-06-25
LLM modelModelo LLMclaude-sonnet-4-20250514
VersionVersão2026-07-13
Quick factsDados rápidos
GenusGêneroAssembly
Root classClasse raizAssembly
Axiom modeModoequivalent
FunctionFunçãoGasMovementFunction
ProcessProcessoGasMovementProcess
PartsPartes0
Source DefinitionsDefinições nas Fontes 3 sources
ISO 15926-4 FAN
Definition text withheld (copyrighted standard) — follow the source link above.Texto da definição omitido (norma protegida por direitos autorais) — acesse o link da fonte acima.
CFIHOS fan
Definition text withheld (copyrighted standard) — follow the source link above.Texto da definição omitido (norma protegida por direitos autorais) — acesse o link da fonte acima.
POSC Caesar Fan
Definition text withheld (copyrighted standard) — follow the source link above.Texto da definição omitido (norma protegida por direitos autorais) — acesse o link da fonte acima.