exported
equivalent
heater
IRI:
http://www.inf.ufrgs.br/ontologies/copi#Heater
Generated on 2026-04-13
Natural Language Definition
EN
A heater is an assembly that bears a heating function to add thermal energy to a medium.
PT-BR
Um aquecedor é um conjunto que possui uma função de aquecimento para adicionar energia térmica a um meio.
Formal Axioms
Semi-formal (Aristotelian)
Every heater is an assembly that bears a heating function and has heating elements and housing as component parts at all times
First-Order Logic Theory
Loading…
▸ Stored override
∀x (Heater(x) ↔ Assembly(x) ∧ ∃f(HeatingFunction(f) ∧ bearerOf(x,f)))
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: Heater
<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 "2026-10-07"^^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
:COPI_0000190 rdf:type owl:Class ; # HeatingFunction
rdfs:subClassOf iof-core:DesignedFunction ;
rdfs:subClassOf [
rdf:type owl:Restriction ;
owl:onProperty bfo:BFO_0000054 ; # realizedIn
owl:allValuesFrom :COPI_0000548 # HeatingProcess
] ;
rdfs:subClassOf [
rdf:type owl:Restriction ;
owl:onProperty bfo:BFO_0000054 ; # realizedIn
owl:someValuesFrom :COPI_0000548 # HeatingProcess
] ;
rdfs:label "heating function"@en ;
rdfs:label "função de aquecimento"@pt-br .
### Process type
:COPI_0000548 rdf:type owl:Class ; # HeatingProcess
rdfs:subClassOf :COPI_0000004 ; # HeatTransfer
rdfs:label "heating process"@en ;
rdfs:label "processo de aquecimento"@pt-br .
:COPI_0000004 rdf:type owl:Class . # HeatTransfer
:COPI_0000548 # HeatingProcess
rdfs:subClassOf [
rdf:type owl:Restriction ;
owl:onProperty iof-core:hasInput ;
owl:someValuesFrom :COPI_0000037 # PortionOfFluid
] ;
rdfs:subClassOf [
rdf:type owl:Restriction ;
owl:onProperty iof-core:hasSpecifiedOutput ;
owl:someValuesFrom :COPI_0000037 # PortionOfFluid
] .
### Equipment universal: Heater
:COPI_0000124 rdf:type owl:Class ; # Heater
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 :COPI_0000190 # HeatingFunction
]
)
] ;
rdfs:label "heater"@en ;
rdfs:label "aquecedor"@pt-br ;
iof-av:naturalLanguageDefinition "A heater is an assembly that bears a heating function to add thermal energy to a medium."@en ;
skos:definition "A heater is an assembly that bears a heating function to add thermal energy to a medium."@en ;
iof-av:naturalLanguageDefinition "Um aquecedor é um conjunto que possui uma função de aquecimento para adicionar energia térmica a um meio."@pt-br ;
iof-av:semiFormalNaturalLanguageAxiom "Every heater is an assembly that bears a heating function and has heating elements and housing as component parts at all times"@en ;
iof-av:firstOrderLogicAxiom "∀x (Heater(x) ↔ Assembly(x) ∧ ∃f(HeatingFunction(f) ∧ bearerOf(x,f)))"@en ;
skos:definition "[ISO 15926-4] A <HEATER> is a <FunctionalObject> that has the capability of <HEATING>"@en ;
skos:definition "[DEXPI] An apparatus or machine that has the capability of heating."@en ;
skos:definition "[SLB Glossary] Equipment that transfers heat to the produced gas stream."@en .
# Disjointness: Heater and Cooler
[] rdf:type owl:AllDisjointClasses ;
owl:members ( :COPI_0000124 :COPI_0000235 ) . # Heater, Cooler
Axiomatization Decision Log
1
Identity-Giving Function
Function class
HeatingFunction
⊑ DesignedFunction
Realized in
HeatingProcess
⊑ HeatTransfer
The heating function is identity-giving - what makes a heater a heater is its designed capability to add thermal energy to a medium. This distinguishes it from coolers (remove heat) or heat exchangers (transfer heat between media without net addition).
2
Genus Determination
Assembly
bfo:Object (BFO_0000030)
Causally unified material artefact composed of physically connected,
separable MaterialComponent parts. Satisfies
Assembly ⊑ MaterialArtifact ⊑ bfo:Object.
No domain-specific superclass for heater exists in the parent_candidates (FunctionalObject, ProcessEquipment, Artefact are too abstract). Heater is a root equipment category. Most heaters are complex assemblies with multiple components (heating elements, casings, controls, insulation) that are physically connected and removable for maintenance, making Assembly the appropriate BFO root.
3
Necessary Parts
No necessary parts recorded (concept may be primitive at this level).
These parts are universal across all heater types - electric, fired, steam, etc. all require heating elements and protective housing
4
Process Participation Signature ⟨I, O, T⟩
Inputs (I)
PortionOfFluid
— lower temperature
Outputs (O)
PortionOfFluid
— higher temperature
Transformation (T)
thermal energy addition to increase fluid temperature
Heaters have a characteristic signature of taking a cooler fluid and energy input to produce a warmer fluid output, distinguishing them from heat exchangers (two fluid streams) or coolers (heat removal)
5
Axiom Mode Decision
Necessary + Sufficient
— modelled as a defined class
(≡, EquivalentClass). Automatic classification is
appropriate for this concept.
Disjointness Axioms
Cooler
C?: Cooler [kind_ambiguous]. Heaters add thermal energy while coolers and refrigerators remove thermal energy - these are incompatible process signatures
Cross-Standard Observations
ISO 15926 and DEXPI provide general functional definitions, while SLB Glossary is more specific to gas stream heating in oil & gas operations. All sources align on the functional nature of heating capability.
