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4-29

efficiency

URNurn:iso:std:iso:80000:-4:ed-2:en:item:4-29

https://metanorma.github.io/isq-smart/quantities/part-4/t4-29
urn:iso:std:iso:80000:-4:ed-2:en:item:4-29

ISQ Identifiers

ISO

urn:iso:std:iso:80000:-4:ed-2:en:item:4-29

IEC

urn:iec:std:iec:80000-4:2019:::item:4-29

Designations

ENefficiency

FRrendement

Symbol

η

Notation systems

Rendered

η

AsciiMath

eta

LaTeX

\eta

Definition

quotient of output power $P_{out}$ (power <mechanics>) from a system and input power $P_{in}$ (power <mechanics>) to this system:

$η = \frac{P_{out}}{P_{in}}$

quotient de la puissance de sortie $P_{out}$ (power <mechanics>) d'un système par la puissance d'entrée $P_{in}$ (power <mechanics>) de ce système :

$η = \frac{P_{out}}{P_{in}}$

Units

1

one

View related quantities →

Notes

The system must be specified.

This quantity is often expressed by the unit percent, symbol %.

Le système doit être spécifié.

Cette grandeur est souvent exprimée en pourcentage, symbole %.

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:t4-29

Properties

isq:QuantityShape

Property	Value
rdf:type	isq:Quantity smart:TermEntry
dcterms:identifier	4-29
skosxl:prefLabel	"efficiency <mechanics>"@en
skosxl:altLabel	"eta"@en
skos:definition	quotient of output power stem:[P_"out"] (<<t4-27>>) from a system and input power stem:[P_"in"] (<<t4-27>>) to this syst…
skos:note	The system must be specified. This quantity is often expressed by the unit percent, symbol %.
isq:hasUnit	1 (one)
isq:hasDimension	isq:Dimension
smart:hasBindingnessType	bindingness-type:normative
dcterms:isPartOf	isq:part-4

Related Entities

isq:QuantityShape isq:part-4 isq:Unit isq:Dimension isq:hasDimension smart:TermEntry