Bubble injection inside cooling system
- 1. OPTIMIZATION OF HEAT TRANSFER AND EFFICIENCY OF ENGINE VIA AIR BUBBLE INJECTION INSIDE ENGINE COOLING SYSTEM
- 2. INTRODUCTION A proper cooling system has a key role in the overall performance of an IC engine. Air bubble can be used as an effective tool to increase heat transfer and performance of heat exchanger Also with the help air bubble injection system, we can effectively reduce warm-up period and there by increase over all performance
- 3. EXPERIMENTAL SETUP • Consist of gasoline engine, air compressor, a control panel, a hydraulic dynamometer, measurement instruments and controllers. • measurement instrument consists of Advanced fuel measurement device, exhaust gas analyzer, speed sensor, FESTO controller valve. • All measured data were collected and recorded by a DAQ card.
- 5. TEST CONDITIONS • Duration of each experiment was about 900 s. • Measurement of parameters has been started from preliminary condition when coolant temperature is about 25⁰C . • Test were performed at different engine speeds and constant load of 15% .
- 6. • specification of tests performed
- 7. RESULT AND DISCUSSION • Warm-up time, fuel consumption, exhaust emission of NO, HC,CO and CO2are measured for all 8 test conditions.
- 11. 3.NO emission in the warm upstage after warm up stage
- 12. 4. HC emission
- 14. 5. CO emission
- 15. 6. CO2 emission
- 16. CONCLUSIONS • By air bubble injection the fuel consumption has been reduced. • NO emission of the exhaust gases was reduced considerably in and after warm-up period. • The HC amount has reduced in the warm-up state. • Pollutants CO and CO2 demonstrated homological results. • It has reasonable effect on heat transfer procedure
- 17. REFERENCE • Hadi Ghasemi Zavaragh et al study on “Optimization of heat transfer and efficiency of engine via air bubbl injectionn inside engine cooling system “ , 2017
- 18. THANK YOU