this is a seminar about outo ignition and knock which presented in iran university of science and technology.

5. -
-
-
-
-Gas Ionization

7. 

8. 

9. 

10. (Spark ignition)[4][5]
)(
.(1)
.

11. 
508 𝑐𝑚3
76.21 mm
241.3 mm
111.11 mm
)(20:1- 4.5:1
34
43

12. 

13. 

14. 

15. 

16. -
ValueParameters
82.55 (mm)Bore Diameter
Stroke Length 114.3 (mm)
254 (mm)Connecting Rod
VariableCompression Ratio
VariableSpark Timing
34 ABDCIVC
40 BBDCEVO

22. [1]
[2]"
"CNG
/http://www.civilica.com]CIVILICA We Respect The Science.3[

23. [4] Ibrahim, A., Bari, S., 2008, "Optimization of a natural gas SI
engine employing EGR strategy using a two-zone combustion
model", Fuel 87, 1824–1834.
[5] Mustafi, N.N., Miraglia, Y.C., Raine, R.R., Bansal, P.K., Elder, S.T.,
2006, "Spark-ignition engine performance with ‘Powergas’ fuel
(mixture of CO/H2):A comparison with gasoline and natural gas",
Fuel 85, 1605–1612.

24. Thank for your
attention