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Cetane number is derived from an engine test. It measures the ignition characteristics of diesel fuel, (which detonates under pressure). The higher the Cetane number, the greater the resistance to pre-ignition. A high cetane diesel can be used in high compression (more effcient) engines.
Diesel Index (DI) is a calculation allowing an approximation of Cetane No., when there is no Cetane Test Engine available. The DI is derived from the Analine Point. The Analine Point is a temperature, where analine and the (diesel) sample become completely miscible.
DIESEL INDEX = ((ANILINE POINT(DEG F))(API GRAVITY))/100
A higher aniline point (and therefore a lower aromatic content) in diesel oil is desirable, in order to prevent autoignition in diesel engines.
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What the uses of index number in index index?
uses of index
Discuss the importance of index number?
ndex numbers are basically economic data figures that reflect the price or quantity compared with standard or base value. It is normally expressed as 100 times the ratio of the base value that equals 100. Index numbers are very important for economic analysis. They summarize movements in a group of related variables. The consumer Price index is one of the most commonly used form of index number. It measures the changes in the retail prices.
What is the meaning of coordinate index?
Coordinate index ? Sure ! It's easy ... You just have to coordinate your index number !
What does index mean in maths terms?
index is the same as power The index of a number say how many times you have to use the number in a multiplictaion. e.g; 2 10 = 10*10=100
What is the history of index number of additional mathematics?
The index number in economic terms refers to an economic data figure reflecting price or quantity compared with a standard or base value. The best known index number is the consumer price index, which measures changes in retail prices paid by consumers.
What is the international norme for cetane index of diesel fuels?
U.S. goes by Cetane Number of 40 whereas EU follows a Cetane Index of 46 plus a Cetane Number of 51. Other countries either specify Cetane Number or Cetane index, some of them specify both. Cetane Number can be improved by adding chemical additives , the Cetane Index cannot be influenced since its a quality of base fuel.
How diesel index of a given oil sample is calculated?
The Diesel Index indicates the ignition quality of the fuel. It is found to correlate, approximately, to the cetane number of commercial fuels. It is obtained by the following equation
What is the formula used in diesel index calculation?
diesel index = aniline point *API(1/100)
What is refractive index of diesel?
1.45
What is the refractive index of diesel?
The refractive index of diesel fuel typically ranges from 1.48 to 1.52 at room temperature. This value may vary slightly depending on the composition and temperature of the diesel fuel.
What is index number?
what is index number
What the uses of index number in index index?
uses of index
The acronym for PIN?
Its Postal Index Number and for mobile its Personal Identity Number.
Disadvantages of index number?
disadvantages of index numbers
How the density of diesel measured?
The density of diesel is typically measured using a hydrometer or a densitometer. These instruments determine the density of the diesel fuel by measuring the buoyancy or the refractive index of the liquid. Density can also be calculated by dividing the mass of a given volume of diesel by that volume.
What is the Unit test in index number?
unit test in index
Discuss the importance of index number?
ndex numbers are basically economic data figures that reflect the price or quantity compared with standard or base value. It is normally expressed as 100 times the ratio of the base value that equals 100. Index numbers are very important for economic analysis. They summarize movements in a group of related variables. The consumer Price index is one of the most commonly used form of index number. It measures the changes in the retail prices.
