cetane value

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• cetane number — /ˈsiteɪn nʌmbə/ (say seetayn numbuh) noun a measure of the ignition quality of diesel engine fuels. The fuel is compared with mixtures of alpha methylnaphthalene (value = 0) and cetane (value =100). Also, cetane rating …  

• cetane rating — noun see cetane number * * * cetane number or cetane rating noun A measure of the ignition quality of diesel engine fuel • • • Main Entry: ↑cetane * * * cetane number or cetane rating, a measure of the ability of a diesel fuel oil to igni …   Useful english dictionary

• cetane number — a measure of the ignition quality of a diesel engine fuel by comparison with various mixtures in which the alpha form of methylnaphthalene is given a standard value of 0 and cetane is given a standard value of 100. Also called cetane rating.… …   Universalium

• cetane number — noun or cetane rating : a measure of the ignition value of a diesel fuel oil : the percentage by volume of cetane in a mixture of cetane and 1 methylnaphthalene that gives the same ignition lag as the oil being tested …   Useful english dictionary

• cetane number — noun Date: 1935 a measure of the ignition value of a diesel fuel that represents the percentage by volume of cetane in a mixture of liquid methylnaphthalene that gives the same ignition lag as the oil being tested called also cetane rating… …   New Collegiate Dictionary

• cetane —   n. an oil found in petroleum.    ♦ cetane number, number representing ignition value of diesel oil, being the percentage of cetane in a mixture used for testing by comparison …   Dictionary of difficult words

• petroleum refining — Introduction  conversion of crude oil into useful products. History Distillation of kerosene and naphtha       The refining of crude petroleum owes its origin to the successful drilling of the first oil well in Titusville, Pa., in 1859. Prior to… …   Universalium

• Alkane — Not to be confused with Alkene or Alkyne. Chemical structure of methane, the simplest alkane Alkanes (also known as paraffins or saturated hydrocarbons) are chemical compounds that consist only of hydrogen and carbon atoms and are bonded… …   Wikipedia

• Fuel efficiency — is a form of thermal efficiency, meaning the efficiency of a process that converts chemical potential energy contained in a carrier fuel into kinetic energy or work. Overall fuel efficiency may vary per device, which in turn may vary per… …   Wikipedia

• Diesel engine — Diesel engines in a museum Diesel generator on an oil tanker …   Wikipedia

• Fuel oil — An oil tanker taking on bunker fuel. Fuel oil is a fraction obtained from petroleum distillation, either as a distillate or a residue. Broadly speaking, fuel oil is any liquid petroleum product that is burned in a furnace or boiler for the… …   Wikipedia