← Class ReferenceReferência de Classes
exported equivalent COPI_0000286
Gas Turbine
IRI: https://www.inf.ufrgs.br/ontologies/copi/COPI_0000286
Generated onGerado em 2026-04-15
Natural Language DefinitionDefinição em Linguagem Natural
EN
A gas turbine is a turbine that has an integrated compressor and combustion chamber, designed to compress ambient air, mix it with fuel for combustion, and expand the resulting hot gases through a turbine section to generate mechanical power.
PT-BR
Uma turbina a gás é uma turbina que possui um compressor e câmara de combustão integrados, projetada para comprimir ar ambiente, misturá-lo com combustível para combustão, e expandir os gases quentes resultantes através de uma seção de turbina para gerar energia mecânica.
Formal AxiomsAxiomas Formais
Semi-formal (Aristotelian)Semi-formal (Aristotélico)
Every gas turbine is a turbine that has component parts compressor and combustion chamber at all times, and participates in air compression process and fuel combustion process.
First-Order Logic TheoryTeoria em Lógica de Primeira Ordem
[Definition]∀x (GasTurbine(x) ↔ Turbine(x) ∧ ∃f (TurbomachineryPowerGenerationFunction(f) ∧ bearerOf(x,f)) ∧ ∃hasComponentPartAtAllTimes.Compressor ⊓ ∃hasComponentPartAtAllTimes.CombustionChamber ⊓ ∃participatesIn.AirCompressionProcess ⊓ ∃participatesIn.FuelCombustionProcess) — Steps 1–3: genus + identity-giving function [Function axiom: TurbomachineryPowerGenerationFunction]∀f (TurbomachineryPowerGenerationFunction(f) → ∀p (realizedIn(f,p) → TurbomachineryPowerGenerationProcess(p)) ∧ ∃p (TurbomachineryPowerGenerationProcess(p) ∧ realizedIn(f,p))) — Step 1: ∀ preserves type-type identity; ∃ rules out vacuous functions never realised [Necessary part: TurbineSection]∀x (GasTurbine(x) → ∃p (TurbineSection(p) ∧ hasComponentPartAtAllTimes(x,p))) — Step 4: mereological commitment — every instance must have this part [Process participation signature]∀x ∀f ((GasTurbine(x) ∧ TurbomachineryPowerGenerationFunction(f) ∧ bearerOf(x,f)) → ∃m1 (AirPortion(m1) ∧ participatesIn(m1,f)) ∧ ∃m2 (FuelPortion(m2) ∧ participatesIn(m2,f)) ∧ ∃e (ExhaustGasPortion(e) ∧ participatesIn(e,f)) ∧ processType(f,ChemicalTransformation)) — 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: GasTurbine <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 :TurbomachineryPowerGenerationFunction rdf:type owl:Class ; rdfs:subClassOf iof-core:DesignedFunction ; rdfs:subClassOf [ rdf:type owl:Restriction ; owl:onProperty bfo:BFO_0000054 ; # realizedIn owl:allValuesFrom :TurbomachineryPowerGenerationProcess ] ; rdfs:subClassOf [ rdf:type owl:Restriction ; owl:onProperty bfo:BFO_0000054 ; # realizedIn owl:someValuesFrom :TurbomachineryPowerGenerationProcess ] ; rdfs:label "turbomachinery power generation function"@en ; rdfs:label "função de geração de energia por turbomáquina"@pt-br . ### Process type :TurbomachineryPowerGenerationProcess rdf:type owl:Class ; rdfs:subClassOf iof-core:PlannedProcess ; rdfs:label "turbomachinery power generation process"@en ; rdfs:label "processo de geração de energia por turbomáquina"@pt-br . :TurbomachineryPowerGenerationProcess rdfs:subClassOf [ rdf:type owl:Restriction ; owl:onProperty iof-core:hasInput ; owl:someValuesFrom :AirPortion ] ; rdfs:subClassOf [ rdf:type owl:Restriction ; owl:onProperty iof-core:hasInput ; owl:someValuesFrom :FuelPortion ] ; rdfs:subClassOf [ rdf:type owl:Restriction ; owl:onProperty iof-core:hasSpecifiedOutput ; owl:someValuesFrom :ExhaustGasPortion ] . ### Equipment universal: GasTurbine :GasTurbine rdf:type owl:Class ; owl:equivalentClass [ rdf:type owl:Class ; owl:intersectionOf ( :Turbine [ rdf:type owl:Restriction ; owl:onProperty iof-core:hasFunction ; # Object branch (MaterialArtifact/Assembly/Object/FiatObjectPart) owl:someValuesFrom :TurbomachineryPowerGenerationFunction ] [ rdf:type owl:Restriction ; owl:onProperty iof-core:hasComponentPartAtAllTimes ; owl:someValuesFrom :TurbineSection ] ) ] ; rdfs:label "gas turbine"@en ; rdfs:label "turbina a gás"@pt-br ; iof-av:naturalLanguageDefinition "A gas turbine is a turbine that has an integrated compressor and combustion chamber, designed to compress ambient air, mix it with fuel for combustion, and expand the resulting hot gases through a turbine section to generate mechanical power."@en ; skos:definition "A gas turbine is a turbine that has an integrated compressor and combustion chamber, designed to compress ambient air, mix it with fuel for combustion, and expand the resulting hot gases through a turbine section to generate mechanical power."@en ; iof-av:naturalLanguageDefinition "Uma turbina a gás é uma turbina que possui um compressor e câmara de combustão integrados, projetada para comprimir ar ambiente, misturá-lo com combustível para combustão, e expandir os gases quentes resultantes através de uma seção de turbina para gerar energia mecânica."@pt-br ; rdfs:subClassOf [ rdf:type owl:Restriction ; owl:onProperty bfo:BFO_0000196 ; owl:someValuesFrom :COPI_0000059 ] ; :TurbineSection rdf:type owl:Class ; rdfs:subClassOf iof-core:Assembly ; rdfs:label "seção de turbina"@pt-br ; rdfs:label "turbine section"@en .
Axiomatization Decision LogRegistro de Decisões
1 Identity-Giving FunctionFunção Identitária
Function class
TurbomachineryPowerGenerationFunction ⊑ DesignedFunction
Realized in
TurbomachineryPowerGenerationProcess ⊑ PlannedProcess
Gas turbines are fundamentally defined by their function to generate mechanical power through the turbomachinery process of air compression, fuel combustion, and thermal expansion through a turbine section. This distinguishes them from other power generation equipment like reciprocating engines (internal combustion cycles) or steam turbines (external steam cycles).
2 Genus DeterminationDeterminação do Gênero
Turbinebfo:Object (BFO_0000030)
Based on the parent_candidates from ISO 15926, 'TURBINE' is the most specific appropriate superclass. Gas turbines are a subtype of turbine that uses gas as the working fluid. The broader 'Rotating Equipment' category is too general. Turbine represents the appropriate level of ontological specificity as the immediate superclass that captures the turbomachinery nature while allowing differentiation from steam turbines, hydraulic turbines, etc.
3 Differentia SpecificaDiferença Específica
∃hasComponentPartAtAllTimes.Compressor ⊓ ∃hasComponentPartAtAllTimes.CombustionChamber ⊓ ∃participatesIn.AirCompressionProcess ⊓ ∃participatesIn.FuelCombustionProcess

A gas turbine is distinguished from other turbines by having an integrated air compressor and combustion chamber, participating in both air compression and fuel combustion processes within a single integrated system.

The differentia captures what makes a gas turbine unique among turbines: the integration of compression and combustion within the turbine system itself. The compressor pressurizes ambient air, fuel is added and combusted, and the hot gases expand through the turbine section. This integrated thermodynamic cycle distinguishes gas turbines from external combustion turbines like steam turbines.
4 Necessary PartsPartes Necessárias
Part classParentRelation
TurbineSectionAssemblyhasComponentPartAtAllTimes
These parts represent the essential components that every gas turbine must possess to function: air compression, fuel combustion, thermal expansion, and power transmission capabilities.
Process Participation SignatureAssinatura de Participação em Processo
InputsEntradas
{'type': 'AirPortion', 'count': 1, 'constraints': 'ambient pressure'}, {'type': 'FuelPortion', 'count': 1, 'constraints': 'gas, light oil, medium oil, heavy oil, or dual fuel'}
OutputsSaídas
{'type': 'ExhaustGasPortion', 'count': 1, 'constraints': 'high temperature, reduced pressure'}
TransformationTransformação
chemical energy conversion to thermal energy via combustion, then thermal energy conversion to mechanical rotational energy via gas expansion
Gas turbines take ambient air and fuel as inputs, combust them to create high-energy gases, then extract mechanical work as the gases expand through the turbine section while exhausting spent gases.
MetadataMetadados
COPI IDCOPI IDCOPI_0000286
IRIIRIhttps://www.inf.ufrgs.br/ontologies/copi/COPI_0000286
StatusStatusexported
Axiom modeModoequivalent
CreatedCriado2026-04-15
UpdatedAtualizado2026-07-12
LLM modelModelo LLMclaude-sonnet-4-20250514
VersionVersão2026-07-13
Quick factsDados rápidos
GenusGêneroTurbine
Root classClasse raizAssembly
Axiom modeModoequivalent
FunctionFunçãoTurbomachineryPowerGenerationFunction
ProcessProcessoTurbomachineryPowerGenerationProcess
PartsPartes1
Source DefinitionsDefinições nas Fontes 3 sources
ISO 15926-4 GAS TURBINE
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 gas turbine
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 Gas Turbine
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.