en

octane number

1

Terminological databases

EKI terminibaas Esterm

ID 693383 Last modified 10.09.2014
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Domain Chemistrypetro-chemistry - natural gas
octane number preferred
  • sädesüütega sisepõlemismootorite kütuste (nt bensiini) detonatsioonikindlust iseloomustav suurus
  • a number that provides a measure of the ability of a fuel to resist knocking when it is burnt in a spark-ignition engine. It is the percentage by volume of iso-octane (C8H18; 2,2,4-trimethylpentane) in a blend with normal heptane (C7H16) that matches the knocking behaviour of the fuel being tested in a single cylinder four-stroke engine of standard design.
Good to know
  • Vt ka kirjet „cetane number - tsetaaniarv“ [10.09.2014]
oktaaniarv
Usage examples
  • Bensiini tähistusena kasutatakse oktaaniarvu järgnevalt: 1) bensiin 91 – oktaaniarvuga uurimismeetodil 91 ja rohkem, kuid alla 95; 2) bensiin 95 – oktaaniarvuga uurimismeetodil 95 ja rohkem, kuid alla 98; 3) bensiin 98 – oktaaniarvuga uurimismeetodil min 98.
octane number preferred
octane rating
indice d'octane
Oktanzahl

Metroloogia terminibaas

ID 572315 Last modified 04.12.2024
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Domain Standardisation - Metrology
oktaaniarv preferred
oktaanarv
detonatsiooni hinnang
mootoroktaaniarv variant
octane number preferred
octane rating
octane level
octane ratio
knock rating
motor octane number variant
MON variant
research octane number variant
RON variant
  • standardne mõõtesuurus, mille abil tehakse kindlaks mootori talitluse või bensiini plahvatuskindlus, s.o isesüttimise vastu seismise võime
  • standard measure of the performance of an engine or aviation fuel
  • standard measure of a fuel's ability to withstand compression in an internal combustion engine without undergoing pre-ignition
oktaaniarv preferred
Usage examples
  • Mida suurem on oktaaniarv, seda suuremat kokkusurumist suudab kütus enne plahvatamist taluda ja see ei ole otseselt seotud väljundvõimsuse ega kütuse energiasisaldusega massi- või mahuühiku kohta, vaid näitab lihtsalt bensiini vastupidavust detoneerida rõhu all sädemeta.
oktaanarv
detonatsiooni hinnang
mootoroktaaniarv variant
uuringuoktaaniarv variant
octane number preferred
Usage examples
  • The higher the octane number, the more compression the fuel can withstand before detonating, and it does not relate directly to the power output or the energy content of the fuel per unit mass or volume, but simply indicates gasoline's resistance to detonating under pressure without a spark.
octane rating
octane level
octane ratio
knock rating
motor octane number variant
MON variant abbreviation
research octane number variant
RON variant abbreviation

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