F2008-09-017
Flame Speed Measurement and its Effect on Copper Coated SI Engine Working on Miller Cycle
Flame Speed Measurement and its Effect on Copper coated SI Engine Working on Miller Cycle
The concept of varying the ER/CR ratio in IC Engines though very old is now gaining prominence in research now days, due to the fuel economy and emission norms. In this research paper behavior of single cylinder SI engine in terms of flame speed and other operational parameters have been analyzed when copper material is coated on the cylinder surface of the SI engine operating on the miller cycle. In Miller cycle the ER/CR ratio can be varied so that expansion process can be extended to get the maximum power output from the engine. How ever, the UBHC emission slightly increases for miller cycle operation. To overcome the problem of higher UBHC emission in miller cycle and also to improve the performance of engine, copper element which can act as catalyst was used. Flame speed is an important parameter while analyzing the combustion in IC engine.In fact flame speed determines the overall performance of IC engine and also the emission. Hence the exact measurement of flame speed is dealt with elaborately in this paper and also subsequently its effect on the performance of copper coated engine working on miller cycle.
Key words: Extended Expansion (EE), ER/CR, SFC, Lean Misfire Limit, Flame speed.
Poster presentation: Resources and ecology