--%>
Assignment Help - homework help

Cetane Number and Octane Number

Describe the term Cetane Number and the Octane Number?

E

Expert

Verified

Cetane No.- Cetane number is described as the percentage, by volume, of n-cetane within the mixture of n-cetane and alpha methyl naphthalene. It refers to the measure of rating of the CI engine.

Octane No. - Octane number is described as the percentage, by volume, of iso-octane within the mixture of iso-octane and h-heptane. It refers to the measure of rating of the SI engine.

   Related Questions in Mechanical Engineering

  • Q : Radial bearings Explain the importance

    Explain the importance to remember about the radial bearings?

    		•
  • Q : Define feasibility study Feasibility

    Feasibility study: In order to take wise investments in a market-place experiencing rising stages of risk, companies are turning to feasibility studies to find out if they must propose new products, services or commence a new business endeavor. The ma

    		•
  • Q : Difference between PLC and Logic Card

    Difference between PLC and Logic Card: There is technically no difference. Both are logic controller utilized for several applications and in PLC has it's own internal memory (compared to Logic card).

  • Q : Problem on damping coefficient Vertical

    Vertical suspension system of a car can be modeled as single degree of the freedom system. Consider that the car with mass m consists of four shock absorbers with equal stiffness and damping of k and c, corresspondingly: (a) Due to

    		•
  • Q : Gasoline in Diesel Engine If the

    If the gasoline is used in the Diesel engine explain whether the Diesel engine will work?

    		•
  • Q : Advantages and disadvantages of using

    Explain advantages and disadvantages of using the LPG in Car?

    		•
  • Q : Define Product Design Specification

    Product Design Specification: Once the basic idea for a product has been made, the next step is to create a product design specification, or PDS. This document must be as comprehensive and as detailed as possible as it forms the basis of all the work

    		•
  • Q : Solution A pump station has been

    A pump station has been designed to lift water out of a 6 metre deep pit (vented to atmosphere) via a centrifigual pump mounted at ground level. Liquid conditions 20OC Suction pipe work losses 2.0 metres NPSH safety factor 5.0 kPa Vapor pressure @ 20oC 0.25 metres (a) Calculat

    		•
  • Q : What is LILO What is meant by the term

    What is meant by the term LILO?

    		•
  • Q : Bernoulli's equation From Bernoulli's

    From Bernoulli's equation we know that presure head + velocity head at inlet and outlet header is same. If so  what is ' W' then in the equation ?

    		•