.

ASEMINAR ON THE

TOPIC“S.I. & C.I. ENGINE”

Submitted to:- Submitted by:-Prof. Sachin Sharma Vipulesh ShardeoMech. Deptt. Gautam PatelS.R.C.E.M. Banmore Saddam Ansari

CONTENT

• INTRODUCTION

• CONSTRUCTION

• WORKING

• LATEST TECHNOLOGIES @ I.C. ENGINE

• DIFFERENCES BETWEEN S.I. & C.I. ENGINE

• APPLICATIONS

• CONCLUSION

http://en.wikipedia.org/wiki/File:Arbeitsweise_Zweitakt.gif

p-v DIAGRAM PROCESSES :-

Process 1-2 :- Isentropic compression

Process 2 -3 :- Heat addition (const. volume)

Process 3-4 :- Isentropic expansion

Process 4-1 :- Heat rejecton

p-v DIAGRAM PROCESSES :-

Process 1-2 :- Isentropic compression

Process 2 -3 :- Heat addition (const. pressure)

Process 3-4 :- Isentropic expansion

Process 4-1 :- Heat rejecton

S.I. ENGINE C.I. ENGINE

1. Works on otto cycle. 1. Works on diesel cycle.

2. Spark ignition 2. Compression ignition.

3. Fuel supplied by 3. Fuel supplied by fuel-

carburretor. injector.

4. Lower thermal efficiency 4. Higher thermal efficiency

(upto 25%). (upto 45%).

5. More running cost. 5. Less running cost.

6. Light in weight. 6. Heavy in weight.

7. Pre-ignition is possible. 7. Pre-ignition is not possible.

S.I. engines are used to run light vehicles like motorcycles etc.

C.I. engines are used to run heavy vehicles like car, bus, truck etc.

C.I. engines are also used to operate genarator.

It is also used in pumping sets to pump out water.

Many latest technologies