fuel cetane

См. также в других словарях:

• Cetane number — or CN is a measurement of the combustion quality of diesel fuel during compression ignition. It is a significant expression of diesel fuel quality among a number of other measurements that determine overall diesel fuel quality. Contents 1… …   Wikipedia

• Cetane index — is used as a substitute for the cetane number of diesel fuel. The cetane index is calculated based on the fuel s density and distillation range (ASTM D86). There are two methods used, ASTM D976 and D4737. The older D976, or two variable equation… …   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

• CÉTANE (INDICE DE) — CÉTANE INDICE DE L’aptitude à l’auto inflammation d’un carburant pour moteur Diesel est indiqué par l’indice de cétane. Dans ce type de moteur, on injecte le carburant sous haute pression dans l’air comprimé et l’inflammation naît spontanément… …   Encyclopédie Universelle

• cetane number — n. a number that increases with higher quality, representing the ignition properties of diesel engine fuel oils: it is determined by the percentage of cetane that must be mixed with a standard liquid to match the fuel oil s performance in a… …   English World dictionary

• cetane — [sē′tān΄] n. [< L cetus (see CETACEAN) + ANE] a colorless, liquid alkane, C16H34, found in petroleum and, sometimes, in vegetable matter, and used to test fuel oils …   English World dictionary

• 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

• 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

• cetane number —    a measure of the ability of diesel fuel to reduce engine knocking. The cetane number plays the same role in diesel engine technology that the octane number plays in conventional automobile engine technology. It is the percentage by volume of… …   Dictionary of units of measurement

• 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 — A method of rating diesel oil or fuel by measuring the time lapse between fuel injection and ignition to determine how easy it is to ignite and how fast it will burn. The lower the cetane number, the higher the temperature required to burn the… …   Dictionary of automotive terms