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Part 55-25.1

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Part 5: Thermodynamics·54 entries

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Section 5-252 entries

5-25.1efficiency <thermodynamics>5-25.2maximum efficiency

5-25.1

efficiency

URNurn:iso:std:iso:80000:-5:ed-2:en:item:5-25.1

Download RDF.jsonld .ttl

https://metanorma.github.io/isq-smart/quantities/part-5/t5-25.1
urn:iso:std:iso:80000:-5:ed-2:en:item:5-25.1

ISQ Identifiers

ISO

urn:iso:std:iso:80000:-5:ed-2:en:item:5-25.1

IEC

urn:iec:std:iec:80000-5:2019:::item:5-25.1

Designations

ENefficiency

FRrendement

Symbol

η

Notation systems

Rendered

η

AsciiMath

eta

LaTeX

\eta

Definition

quotient of work (ISO 80000-4: Mechanics) delivered by a heat engine and supplied heat:

η = \frac{W}{Q}

where $W$ is work (ISO 80000-4: Mechanics) and $Q$ is heat (heat)

quotient du travail (ISO 80000-4: Mechanics) fourni par un moteur thermique par la chaleur fournie:

η = \frac{W}{Q}

où $W$ est le travail (ISO 80000-4: Mechanics) et $Q$ est la chaleur (heat)

Units

1

one

View related quantities →

Concept HierarchyPendrill (2024)

1dimensionless quantitiesLevel 0 · Kind

Broader concepts

◇ dimensionless quantities

Ontology
isq:Quantity smart:TermEntry

Class Hierarchy

smart:Entity smart:TermEntryisq:Quantity

A physical quantity as defined in ISO/IEC 80000, with associated symbols, definitions, and units of measurement.

Instance IRI

isq:t5-25.1

Properties

isq:QuantityShape

Property	Value
rdf:type	isq:Quantity smart:TermEntry
dcterms:identifier	5-25.1
skosxl:prefLabel	"efficiency <thermodynamics>"@en
skosxl:altLabel	"eta"@en
skos:definition	quotient of work (<<iso80000-4>>) delivered by a heat engine and supplied heat: [stem%unnumbered] ++++ eta=W/Q ++++ wh…
isq:hasUnit	1 (one)
isq:hasDimension	isq:Dimension
smart:hasBindingnessType	bindingness-type:normative
dcterms:isPartOf	isq:part-5

Related Entities

isq:QuantityShape isq:part-5 isq:Unit isq:Dimension isq:hasDimension smart:TermEntry