Week-4 : Basic Calibration of Single cylinder CI-Engine
Basic Calibration of Single cylinder CI-Engine
Aim:
1.To compare SI vs CI and list down differences (assignment no 2-SI)
2.To comments on following parameters
- BSFC
- Exhaust Temperature
- A/F ratios
3.To change MFB 50 and observe impact on performance
Answer:
SI vs CI engine:
| S.no | SI Engine | CI engine |
| 1. | Low compression ratio is required | High compression ratio is required |
| 2. | High Thermal efficiency | Low Thermal efficiency |
| 3. | It works on otto cycle | It works on Diesel cycle |
| 4. | SI engine is internal combustion engine that operates on the principle of spark ignition. | CI engine is internal combustion engine that operates on the principle of compression ignition. |
| 5. | Gasoline is used as fuel. | Diesel is used as fuel. |
| 6. | Generates lesser noise and vibration as compared to CI engine. | Generates high noise and vibrations. |
Model:
1.CI simulation base setup results:
Pressure:
Temperature:
BF:
2.RPM:
Case setup:
Results:
Pressure:
Temperature:
Log PV:
Burned Fuel:
Mass flow rate:
3.MBD:
Case setup:
Results:
Pressure:
Temperature:
Log PV:
Burned Fuel:
Conclusion:
CI engine simulation was done in GT power.