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exported equivalent COPI_0000292
Gravity Separator
IRI: https://www.inf.ufrgs.br/ontologies/copi/COPI_0000292
Generated onGerado em 2026-04-16
Natural Language DefinitionDefinição em Linguagem Natural
EN
A gravity separator is a separator that performs separation based on differences in specific gravity of the substances being separated.
PT-BR
Um separador gravitacional é um separador que realiza separação baseada nas diferenças de gravidade específica das substâncias sendo separadas.
Formal AxiomsAxiomas Formais
Semi-formal (Aristotelian)Semi-formal (Aristotélico)
Every gravity separator is a separator that bears a GravitySeparationFunction
First-Order Logic TheoryTeoria em Lógica de Primeira Ordem
[Definition]∀x (GravitySeparator(x) ↔ Separator(x) ∧ ∃f (GravitySeparationFunction(f) ∧ bearerOf(x,f))) — Steps 1–3: genus + identity-giving function [Function axiom: GravitySeparationFunction]∀f (GravitySeparationFunction(f) → ∀p (realizedIn(f,p) → GravitySeparationProcess(p)) ∧ ∃p (GravitySeparationProcess(p) ∧ realizedIn(f,p))) — Step 1: ∀ preserves type-type identity; ∃ rules out vacuous functions never realised [Process participation signature]∀x ∀f ((GravitySeparator(x) ∧ GravitySeparationFunction(f) ∧ bearerOf(x,f)) → ∃m (FluidMixture(m) ∧ participatesIn(m,f)) ∧ ∃e (FluidPortion(e) ∧ participatesIn(e,f)) ∧ processType(f,PhaseSeparation)) — 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: GravitySeparator <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 :GravitySeparationFunction rdf:type owl:Class ; rdfs:subClassOf :SeparationFunction ; rdfs:subClassOf [ rdf:type owl:Restriction ; owl:onProperty bfo:BFO_0000054 ; # realizedIn owl:allValuesFrom :GravitySeparationProcess ] ; rdfs:subClassOf [ rdf:type owl:Restriction ; owl:onProperty bfo:BFO_0000054 ; # realizedIn owl:someValuesFrom :GravitySeparationProcess ] ; rdfs:label "gravity separation function"@en ; rdfs:label "função de separação gravitacional"@pt-br . :SeparationFunction rdf:type owl:Class . ### Process type :GravitySeparationProcess rdf:type owl:Class ; rdfs:subClassOf :SeparationProcess ; rdfs:label "gravity separation process"@en ; rdfs:label "processo de separação gravitacional"@pt-br . :SeparationProcess rdf:type owl:Class . :GravitySeparationProcess rdfs:subClassOf [ rdf:type owl:Restriction ; owl:onProperty iof-core:hasInput ; owl:someValuesFrom :FluidMixture ] ; rdfs:subClassOf [ rdf:type owl:Restriction ; owl:onProperty iof-core:hasSpecifiedOutput ; owl:someValuesFrom :FluidPortion ] . ### Equipment universal: GravitySeparator :GravitySeparator rdf:type owl:Class ; owl:equivalentClass [ rdf:type owl:Class ; owl:intersectionOf ( :Separator [ rdf:type owl:Restriction ; owl:onProperty iof-core:hasFunction ; # Object branch (MaterialArtifact/Assembly/Object/FiatObjectPart) owl:someValuesFrom :GravitySeparationFunction ] ) ] ; rdfs:label "gravity separator"@en ; rdfs:label "separador gravitacional"@pt-br ; iof-av:naturalLanguageDefinition "A gravity separator is a separator that performs separation based on differences in specific gravity of the substances being separated."@en ; skos:definition "A gravity separator is a separator that performs separation based on differences in specific gravity of the substances being separated."@en ; iof-av:naturalLanguageDefinition "Um separador gravitacional é um separador que realiza separação baseada nas diferenças de gravidade específica das substâncias sendo separadas."@pt-br ; iof-av:semiFormalNaturalLanguageAxiom "Every gravity separator is a separator that bears a GravitySeparationFunction"@en ; iof-av:firstOrderLogicAxiom "∀x(GravitySeparator(x) ↔ Separator(x) ∧ ∃f(GravitySeparationFunction(f) ∧ bearerOf(x,f)))"@en ; # Disjointness: GravitySeparator and Centrifuge [] rdf:type owl:AllDisjointClasses ; owl:members ( :GravitySeparator :Centrifuge ) . # Disjointness: GravitySeparator and Hydrocyclone [] rdf:type owl:AllDisjointClasses ; owl:members ( :GravitySeparator :Hydrocyclone ) .
Axiomatization Decision LogRegistro de Decisões
1 Identity-Giving FunctionFunção Identitária
Function class
GravitySeparationFunction ⊑ SeparationFunction
Realized in
GravitySeparationProcess ⊑ SeparationProcess
The identity-giving function is gravity-based separation - the designed capability to separate substances based on differences in specific gravity. This is a specialization of the general SeparationFunction already used by the separator class.
2 Genus DeterminationDeterminação do Gênero
separatorbfo:Object (BFO_0000030)
From parent_candidates, 'separator' is the most specific and appropriate superclass. It is already enriched in our ontology with function SeparationFunction and genus Vessel. The other candidates (FLUID SEPARATOR, Static Equipment, ARTEFACT) are either too broad or represent lateral categories. A gravity separator is clearly a subtype of separator.
3 Differentia SpecificaDiferença Específica
∃bearerOf.GravitySeparationFunction

performs separation based on differences in specific gravity of the substances being separated

The differentia is the specific type of separation function - gravity-based separation. This distinguishes it from other separator types that use different physical principles (centrifugal force, filtration, coalescence, etc.). The mechanism relies on differences in specific gravity allowing heavier phases to settle under gravitational force.
4 Necessary PartsPartes Necessárias

No necessary parts recorded.

These are the minimal necessary parts for any gravity separator. More specific parts like baffles, weirs, or distribution systems would be subtype-specific and not universal to all gravity separators.
Process Participation SignatureAssinatura de Participação em Processo
InputsEntradas
{'type': 'FluidMixture', 'count': 1, 'constraints': 'multi-phase with components of different specific gravities'}
OutputsSaídas
{'type': 'FluidPortion', 'count': '2+', 'constraints': 'separated phases with distinct specific gravities'}
TransformationTransformação
gravitational separation based on density differences
Gravity separators take a multi-phase fluid mixture and output separate streams of different phases, using gravitational force to exploit density differences. The number of outputs depends on the number of phases being separated.
Disjoint WithDisjunto com
centrifuge hydrocyclone
C1: centrifuge. C2: hydrocyclone. Gravity separators use gravitational force while centrifuges use centrifugal force and hydrocyclones use cyclonic action. These represent fundamentally different separation mechanisms that are mutually exclusive.
MetadataMetadados
COPI IDCOPI IDCOPI_0000292
IRIIRIhttps://www.inf.ufrgs.br/ontologies/copi/COPI_0000292
StatusStatusexported
Axiom modeModoequivalent
CreatedCriado2026-04-16
UpdatedAtualizado2026-06-28
LLM modelModelo LLMclaude-sonnet-4-20250514
VersionVersão2026-07-13
ISA 5.1-2022 — wikimedia/separator.svg
Quick factsDados rápidos
GenusGêneroseparator
Root classClasse raizAssembly
Axiom modeModoequivalent
FunctionFunçãoGravitySeparationFunction
ProcessProcessoGravitySeparationProcess
PartsPartes0
Source DefinitionsDefinições nas Fontes 3 sources
ISO 15926-4 GRAVITY SEPARATOR
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 gravity separator
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 Gravity Separator
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.