Definition & axiom
⚠ Conflicts with the ISO 15926-4 primary definition
Label (EN)
turbine
Label (PT-BR)
Definition (EN)
Definition (PT-BR)
Semi-formal axiom (Aristotelian)
Axiom type
LLM classification basis: function-based → ≡
All source definitions center on the function of extracting energy from fluid flow and converting it to mechanical work. The identity is given by this energy conversion function, not by specific structural mechanisms (which vary widely across turbine types like gas, steam, hydraulic).
Validation status
Why primitive (necessary only)
Reviewer notes
FOL theory & disjointness
First-order logic theory (generated)
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Disjoint with
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Expert review
Axiomatization steps
1
Identity-Giving Function
✓ done
⚠ not anchored
EnergyExtractionFunction → EnergyExtractionProcess
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COPI-Core operation
⚠ Process parent
PlannedProcess reaches no COPI-Core operation, and no gap (out of scope / coverage gap) is recorded.
LLM rationale:
The identity-giving function is extracting energy from flowing fluids and converting it into mechanical work. This distinguishes turbines from other rotating machinery like pumps (which add energy to fluids) or compressors (which compress fluids).
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Expert review
2
Genus Proximus
✓ done
Assembly
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Genus (genus proximum)
Most specific superclass — may be a domain class like "Valve" or an IOF-Core root.
BFO/IOF-Core Root
bfo:Object branch
bfo:ObjectAggregate branch
bfo:ImmaterialEntity branch
LLM rationale:
Turbines are complex rotating machines with multiple physically connected components (rotor, blades, casing, shaft, bearings) that form a single causally unified object. No appropriate intermediate genus exists in the parent candidates - DRIVER is too functional, ARTEFACT too broad. Assembly captures the multi-component nature while maintaining causal unity.
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Expert review
3
Differentia Specifica
✓ done
∃bearerOf.EnergyExtractionFunction ⊓ ∃hasComponentPartAtAllTimes.RotatingShaft ⊓ ∃hasComponentPartAtAllTimes.FluidInteractionBlades
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Conditions that distinguish
Turbine
from sibling classes under genus
Assembly.
Only what is not already entailed by the genus.
Differentia expression
Differentia (natural language)
LLM rationale:
The differentia requires both the specific function (energy extraction from fluids) and the essential structural elements (rotating shaft and blades) that enable this function across all turbine types.
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Expert review
4
Necessary Parts
✓ done
no necessary parts
▼
Consider part-whole relations beyond subsumption:
hasComponentPartAtAllTimes (universal, structurally essential)
· hasComponentPartAtSomeTime (contingent, optional component)
LLM rationale:
These parts are universally required across all turbine types for the basic function of extracting energy from flowing fluids and converting to rotational mechanical work.
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Expert review
5
Process Participation Signature ⟨I, O, T⟩
✓ done
PortionOfFluid → PortionOfFluid
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Inputs (I)
Outputs (O)
Transformation (T)
LLM rationale:
Turbines fundamentally transform high-energy fluid input into lower-energy fluid output while producing mechanical work output through energy extraction process.
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Expert review
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Alternative labels
none
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Synonyms / alternative labels (comma-separated) — skos:altLabel
Language auto-detected on export (PT if the label contains accents, EN otherwise).
Properties as BFO qualities
0 of 43 selected
▼
Select which CFIHOS/DEXPI properties inhere in every instance of Turbine as
bfo:Quality subclasses.
Each selected property →
:TurbineQuality ⊑ bfo:Quality, inheres in :Turbine
Custom axioms
none
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Axioms not produced by the pipeline. Each is appended verbatim as an
rdfs:subClassOf restriction on Turbine.
Write the restriction block in Turtle syntax (without the leading
rdfs:subClassOf).
Example: [ owl:onProperty :hasPart ; owl:someValuesFrom :Wellhead ]
Cross-standard divergences
none detected yet
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Click "Detect divergences" to analyse cross-standard disagreements for this cluster.