Compression ignition engines - thermodynamics, Mechanical Engineering

Compression Ignition Engines (or C.I. Engine):

It works on the basis of dieses cycle. In diesel engines, energy addition occurs at constant pressure but energy rejection at constant volume. Here spark plug can be replaced by fuel injector. The ratio of compression is from 12 to 25. Engine has low speed as compared to Spark Ignition Engines. It is having maintenance cost but low running cost. These are called as compression ignition engines as the ignition is accomplished by the heat of compression.

 

1937_Compression Ignition Engines.png

The upper limit of compression ratio in S.I. Engine is made fix by anti knock quality of fuel. While in Compression Ignition Engines upper limit of compression ratio is restricted by thermal and mechanical stresses of cylinder material. That's why compression ratio of S.I. engine is having more compression ratio as compared to S.I. Engine.

 

Posted Date: 10/15/2012 3:30:58 AM | Location : United States







Related Discussions:- Compression ignition engines - thermodynamics, Assignment Help, Ask Question on Compression ignition engines - thermodynamics, Get Answer, Expert's Help, Compression ignition engines - thermodynamics Discussions

Write discussion on Compression ignition engines - thermodynamics
Your posts are moderated
Related Questions
Q. Scope of corrosion assessment design? The purpose of this guideline is to describe the common corrosion damaging modes and mitigation methods and provides recommended materi

steady state amplitude

Cast Iron Electrodes There are three types of electrodes for welding of cast ions. a) Monel-cored electrodes (30 % Ni 70 % Cu) b) Fe-Ni (40 % Ni) c) Ni-electrodes (97 E) These

Define Disadvantages of electro discharge machining? a) The wear rate on the electrode is significantly higher. b) The work piece must be electrically conductive to be machi

(a) Describe that Energy is a point function and a property of the system. (b) What is the essence of 1 st law of thermodynamics ? Write down expression for the first law appli

Determine the Center of Gravity of a thin hollow right circular cone of height H and radius of the base circle R.


Q. Mechanical Data for Line Designation Tables? Line Designation Tables (LDT's) are initially generated by the Piping designers. Design conditions are inputed by the Process di

Illustrate the following : a. Ash handling system b. Dust collection What are the impurities in the water and how they are replaced for use as feed water in modern thermal

Changes in Mechanical Properties along with Tempering: Tempering enhances the toughness and ductility of quenched steel though decreases hardness. Following figure demonstrate