Heat exchanger image/svg+xml Heat exchanger 30-07-2012 Jozef Sivek Recuperator recuperator heat exchanger Principle Profile Countercurrent Heatexchanger Efficiency 50 – 70 % 70 – 80 % 85 – 99 % Verticalflat panel Horizontalflat panel Cellular
exported necessary COPI_0000139
Plate Heat Exchanger
IRI: https://www.inf.ufrgs.br/ontologies/copi/COPI_0000139
Generated onGerado em 2026-04-13
Natural Language DefinitionDefinição em Linguagem Natural
EN
A plate heat exchanger is a heat exchanger that has heat transfer plates as its primary heat transfer surface.
PT-BR
Um trocador de calor de placas é um trocador de calor que possui placas de transferência de calor como sua superfície primária de transferência de calor.
Formal AxiomsAxiomas Formais
Semi-formal (Aristotelian)Semi-formal (Aristotélico)
Every plate heat exchanger is a heat exchanger that has component part heat transfer plates at all times.
First-Order Logic TheoryTeoria em Lógica de Primeira Ordem
[Necessary condition]∀x (PlateHeatExchanger(x) → HeatExchanger(x) ∧ ∃f (HeatTransferFunction(f) ∧ bearerOf(x,f))) — Steps 1–3: genus + identity-giving function [Function axiom: HeatTransferFunction]∀f (HeatTransferFunction(f) → ∀p (realizedIn(f,p) → HeatTransferProcess(p)) ∧ ∃p (HeatTransferProcess(p) ∧ realizedIn(f,p))) — Step 1: ∀ preserves type-type identity; ∃ rules out vacuous functions never realised [Structural differentia (necessary only)]∀x (PlateHeatExchanger(x) → ∃hasComponentPartAtAllTimes.HeatTransferPlate) — Step 3: structural property — necessary condition, not sufficient (OWA prevents ≡) [Necessary part: HeatTransferPlate]∀x (PlateHeatExchanger(x) → ∃p (HeatTransferPlate(p) ∧ hasComponentPartAtAllTimes(x,p))) — Step 4: mereological commitment — every instance must have this part [Process participation signature]∀x ∀f ((PlateHeatExchanger(x) ∧ HeatTransferFunction(f) ∧ bearerOf(x,f)) → ∃m (FluidPortion(m) ∧ participatesIn(m,f)) ∧ ∃e (FluidPortion(e) ∧ participatesIn(e,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: PlateHeatExchanger <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 :HeatTransferFunction rdf:type owl:Class ; rdfs:subClassOf iof-core:DesignedFunction ; rdfs:subClassOf [ rdf:type owl:Restriction ; owl:onProperty bfo:BFO_0000054 ; # realizedIn owl:allValuesFrom :HeatTransferProcess ] ; rdfs:subClassOf [ rdf:type owl:Restriction ; owl:onProperty bfo:BFO_0000054 ; # realizedIn owl:someValuesFrom :HeatTransferProcess ] ; rdfs:label "heat transfer function"@en ; rdfs:label "função de transferência de calor"@pt-br . ### Process type :HeatTransferProcess rdf:type owl:Class ; rdfs:subClassOf iof-core:PlannedProcess ; rdfs:label "heat transfer process"@en ; rdfs:label "processo de transferência de calor"@pt-br . :HeatTransferProcess rdfs:subClassOf [ rdf:type owl:Restriction ; owl:onProperty iof-core:hasInput ; owl:someValuesFrom :FluidPortion ] ; rdfs:subClassOf [ rdf:type owl:Restriction ; owl:onProperty iof-core:hasSpecifiedOutput ; owl:someValuesFrom :FluidPortion ] . ### Equipment universal: PlateHeatExchanger :PlateHeatExchanger rdf:type owl:Class ; rdfs:subClassOf :HeatExchanger ; rdfs:subClassOf [ rdf:type owl:Restriction ; owl:onProperty iof-core:hasFunction ; # Object branch (MaterialArtifact/Assembly/Object/FiatObjectPart) owl:someValuesFrom :HeatTransferFunction ] ; rdfs:subClassOf [ rdf:type owl:Restriction ; owl:onProperty iof-core:hasComponentPartAtAllTimes ; owl:someValuesFrom :HeatTransferPlate ] ; rdfs:label "plate heat exchanger"@en ; rdfs:label "trocador de calor de placas"@pt-br ; iof-av:naturalLanguageDefinition "A plate heat exchanger is a heat exchanger that has heat transfer plates as its primary heat transfer surface."@en ; skos:definition "A plate heat exchanger is a heat exchanger that has heat transfer plates as its primary heat transfer surface."@en ; iof-av:naturalLanguageDefinition "Um trocador de calor de placas é um trocador de calor que possui placas de transferência de calor como sua superfície primária de transferência de calor."@pt-br ; iof-av:semiFormalNaturalLanguageAxiom "Every plate heat exchanger is a heat exchanger that has component part heat transfer plates at all times."@en ; iof-av:firstOrderLogicAxiom "∀x(PlateHeatExchanger(x) → HeatExchanger(x) ∧ ∃p(HeatTransferPlate(p) ∧ hasComponentPartAtAllTimes(x,p)))"@en ; iof-av:isPrimitive "true"^^xsd:boolean ; iof-av:primitiveRationale "Using necessary conditions for this constructive type. While the plate-based structure is characteristic, under the Open World Assumption, asserting equivalence could lead to false positives where any equipment with heat transfer plates (e.g., specialized hybrid equipment, multi-function process units) would be automatically classified as a standard plate heat exchanger. Domain expert validation is needed to confirm the structural differentia is sufficient."@en ; :HeatTransferPlate rdf:type owl:Class ; rdfs:subClassOf iof-core:MaterialArtifact ; rdfs:label "MaterialArtifact que possui uma HeatTransferFunction e"@pt-br ; rdfs:label "heat transfer plate"@en .
Axiomatization Decision LogRegistro de Decisões
1 Identity-Giving FunctionFunção Identitária
Function class
HeatTransferFunction ⊑ DesignedFunction
Realized in
HeatTransferProcess ⊑ PlannedProcess
All heat exchangers are designed to transfer thermal energy between fluid streams. This is the generic function shared by all heat exchanger types, not a distinguishing function for plate heat exchangers specifically.
2 Genus DeterminationDeterminação do Gênero
heat exchangerbfo:Object (BFO_0000030)
From the parent candidates, 'heat exchanger' (cfihos) and 'NON-TUBULAR HEAT EXCHANGER' (iso15926) are most specific. HeatExchanger is the appropriate genus as it captures the functional identity while being more specific than Assembly. A heat exchanger is an Assembly because it has causally unified subcomponents (plates, frames, gaskets, connections) that are physically connected and maintainable as a single unit.
3 Differentia SpecificaDiferença Específica
∃hasComponentPartAtAllTimes.HeatTransferPlate

Uses metal plates as the primary heat transfer surface to separate and enable energy transfer between fluid streams.

The defining structural characteristic is the presence of heat transfer plates. All definitions emphasize plates as the distinguishing physical feature that separates fluids and enables heat transfer, differentiating from other heat exchanger configurations.
4 Necessary PartsPartes Necessárias
Part classParentRelation
HeatTransferPlateMaterialArtifacthasComponentPartAtAllTimes
These are the minimal essential components that every plate heat exchanger must possess. Sealing elements (gaskets, welds, brazing) vary by subtype and should be modeled at the subtype level.
Process Participation SignatureAssinatura de Participação em Processo
InputsEntradas
{'type': 'FluidPortion', 'count': 2, 'constraints': 'different temperatures, separate flow paths'}
OutputsSaídas
{'type': 'FluidPortion', 'count': 2, 'constraints': 'temperatures adjusted toward equilibrium, separate flow paths maintained'}
TransformationTransformação
thermal energy transfer between fluid streams without mixing
Signature of indirect contact heat transfer: two separate fluid streams enter at different temperatures, exchange thermal energy through the plate surfaces, and exit with adjusted temperatures while maintaining physical separation.
MetadataMetadados
COPI IDCOPI IDCOPI_0000139
IRIIRIhttps://www.inf.ufrgs.br/ontologies/copi/COPI_0000139
StatusStatusexported
Axiom modeModonecessary
CreatedCriado2026-04-13
UpdatedAtualizado2026-06-25
LLM modelModelo LLMclaude-sonnet-4-20250514
VersionVersão2026-07-13