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exported equivalent COPI_0000217
Boiler
IRI: https://www.inf.ufrgs.br/ontologies/copi/COPI_0000217
Generated onGerado em 2026-04-16
Natural Language DefinitionDefinição em Linguagem Natural
EN
A boiler is a heater that brings a liquid to its boiling point through indirect contact heat exchange, producing steam or vapor.
PT-BR
Uma caldeira é um aquecedor que leva um líquido ao seu ponto de ebulição através de troca de calor por contato indireto, produzindo vapor.
Formal AxiomsAxiomas Formais
Semi-formal (Aristotelian)Semi-formal (Aristotélico)
Every boiler is a heater that bears a BoilingFunction and has component parts including a steam drum and heat exchange surface.
First-Order Logic TheoryTeoria em Lógica de Primeira Ordem
[Definition]∀x (Boiler(x) ↔ Heater(x) ∧ ∃f (BoilingFunction(f) ∧ bearerOf(x,f))) — Steps 1–3: genus + identity-giving function [Function axiom: BoilingFunction]∀f (BoilingFunction(f) → ∀p (realizedIn(f,p) → BoilingProcess(p)) ∧ ∃p (BoilingProcess(p) ∧ realizedIn(f,p))) — Step 1: ∀ preserves type-type identity; ∃ rules out vacuous functions never realised [Process participation signature]∀x ∀f ((Boiler(x) ∧ BoilingFunction(f) ∧ bearerOf(x,f)) → ∃m (PortionOfLiquid(m) ∧ participatesIn(m,f)) ∧ ∃e1 (PortionOfGas(e1) ∧ participatesIn(e1,f)) ∧ ∃e2 (PortionOfLiquid(e2) ∧ participatesIn(e2,f)) ∧ processType(f,ThermalEnergyTransfer)) — 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: Boiler <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" ; 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 "2026-10-08"^^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 :BoilingFunction rdf:type owl:Class ; rdfs:subClassOf iof-core:DesignedFunction ; rdfs:subClassOf [ rdf:type owl:Restriction ; owl:onProperty bfo:BFO_0000054 ; # realizedIn owl:allValuesFrom :BoilingProcess ] ; rdfs:subClassOf [ rdf:type owl:Restriction ; owl:onProperty bfo:BFO_0000054 ; # realizedIn owl:someValuesFrom :BoilingProcess ] ; rdfs:label "boiling function"@en ; rdfs:label "função de ebulição"@pt-br . ### Process type :BoilingProcess rdf:type owl:Class ; rdfs:subClassOf :PhaseChange ; rdfs:label "boiling process"@en ; rdfs:label "processo de ebulição"@pt-br . :PhaseChange rdf:type owl:Class . :BoilingProcess rdfs:subClassOf [ rdf:type owl:Restriction ; owl:onProperty iof-core:hasInput ; owl:someValuesFrom :PortionOfLiquid ] ; rdfs:subClassOf [ rdf:type owl:Restriction ; owl:onProperty iof-core:hasSpecifiedOutput ; owl:someValuesFrom :PortionOfGas ] ; rdfs:subClassOf [ rdf:type owl:Restriction ; owl:onProperty iof-core:hasSpecifiedOutput ; owl:someValuesFrom :PortionOfLiquid ] . ### Equipment universal: Boiler :Boiler rdf:type owl:Class ; owl:equivalentClass [ rdf:type owl:Class ; owl:intersectionOf ( :Heater [ rdf:type owl:Restriction ; owl:onProperty iof-core:hasFunction ; # Object branch (MaterialArtifact/Assembly/Object/FiatObjectPart) owl:someValuesFrom :BoilingFunction ] ) ] ; rdfs:label "boiler"@en ; rdfs:label "caldeira"@pt-br ; iof-av:naturalLanguageDefinition "A boiler is a heater that brings a liquid to its boiling point through indirect contact heat exchange, producing steam or vapor."@en ; skos:definition "A boiler is a heater that brings a liquid to its boiling point through indirect contact heat exchange, producing steam or vapor."@en ; iof-av:naturalLanguageDefinition "Uma caldeira é um aquecedor que leva um líquido ao seu ponto de ebulição através de troca de calor por contato indireto, produzindo vapor."@pt-br ; iof-av:semiFormalNaturalLanguageAxiom "Every boiler is a heater that bears a BoilingFunction and has component parts including a steam drum and heat exchange surface."@en ; iof-av:firstOrderLogicAxiom "∀x (Boiler(x) ↔ Heater(x) ∧ ∃f(BoilingFunction(f) ∧ bearerOf(x,f)))"@en ; # Disjointness: Boiler and Condenser [] rdf:type owl:AllDisjointClasses ; owl:members ( :Boiler :Condenser ) . # Disjointness: Boiler and Cooler [] rdf:type owl:AllDisjointClasses ; owl:members ( :Boiler :Cooler ) .
Axiomatization Decision LogRegistro de Decisões
1 Identity-Giving FunctionFunção Identitária
Function class
BoilingFunction ⊑ DesignedFunction
Realized in
BoilingProcess ⊑ PhaseChange
The identity-giving function is to bring liquids to their boiling point through indirect contact heat exchange. This is more specific than general heating - it involves phase change from liquid to vapor. This function distinguishes boilers from other heaters that may only raise temperature without inducing phase change.
2 Genus DeterminationDeterminação do Gênero
Heaterbfo:Object (BFO_0000030)
ISO 15926 explicitly defines BOILER as a subtype of HEATER, and CFIHOS defines it as 'an indirect contact heat exchanger that is intended to heat a liquid.' Between the two parent candidates (heater and heat exchanger), heater is more specific and directly referenced in the primary definition. Heater is already enriched in our ontology with HeatingFunction.
3 Differentia SpecificaDiferença Específica
∃bearerOf.BoilingFunction

A boiler is distinguished from other heaters by its designed function to bring liquids specifically to their boiling point, inducing phase change rather than merely raising temperature.

The BoilingFunction is the minimal additional condition beyond HeatingFunction that distinguishes boilers. This captures the essential phase-change aspect that makes a boiler different from other heating equipment.
4 Necessary PartsPartes Necessárias

No necessary parts recorded.

These parts are fundamental to the boiling process - steam drums for vapor separation, heat exchange surfaces for heat transfer, and mud drums for water circulation in most boiler configurations.
Process Participation SignatureAssinatura de Participação em Processo
InputsEntradas
{'type': 'PortionOfLiquid', 'count': 1, 'constraints': 'feedwater, below boiling point'}
OutputsSaídas
{'type': 'PortionOfGas', 'count': 1, 'constraints': 'steam at boiling point or superheated'}, {'type': 'PortionOfLiquid', 'count': 1, 'constraints': 'condensate or blowdown (optional)'}
TransformationTransformação
phase change from liquid to vapor through indirect heat transfer
Boilers transform liquid feedwater into steam/vapor through heat addition, which is the defining transformation that distinguishes them from other heating equipment.
Disjoint WithDisjunto com
Condenser Cooler
C4: Condenser. C?: Cooler [kind_ambiguous]. Boilers add heat to induce vaporization, while condensers, coolers, and chillers remove heat. These represent opposite thermal processes and are therefore incompatible.
MetadataMetadados
COPI IDCOPI IDCOPI_0000217
IRIIRIhttps://www.inf.ufrgs.br/ontologies/copi/COPI_0000217
StatusStatusexported
Axiom modeModoequivalent
CreatedCriado2026-04-16
UpdatedAtualizado2026-09-08
LLM modelModelo LLMclaude-sonnet-4-20250514
VersionVersão2026-10-08
Quick factsDados rápidos
GenusGêneroHeater
Root classClasse raizAssembly
Axiom modeModoequivalent
FunctionFunçãoBoilingFunction
ProcessProcessoBoilingProcess
PartsPartes0
Source DefinitionsDefinições nas Fontes 3 sources
ISO 15926-4 BOILER
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 boiler
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.
DEXPI Boiler
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.
Provenance tiersCamadas de proveniência
primarystandardverbatimiso15926
A <BOILER> is a <HEATER> that brings a <LIQUID> to its boiling point
secondarystandardverbatimcfihos
An indirect contact heat exchanger that is intended to heat a liquid.
secondarystandardverbatimdexpi
A that brings a liquid to its boiling point.

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