| 陈鹏，郑尊清，马乃锋，杨彬，查海恩，尧命发.两次喷射对正丁醇部分预混燃烧影响的试验研究[J].内燃机工程,2018,39(2):14-21. |
| The Effect of Two Stage Injection on Emission and Combustion of Partially Premixed Combustion of Neat n Butanol |
| DOI： |
| Key Words:n-butanol partially premixed combustion two stage injection controllability maximum pressure rise rate |
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| Abstract:An experimental investigation on the partially premixed combustion (PPC) of neat n-butanol by using the two-stage injection strategy has been conducted. The results indicate that compared to the gasoline PPC, the n-butanol PPC is more sensitive to the injection timing, and the stable operation scope is narrower due to the higher pressure rise rate (PRR), but the THC, NOx and soot emissions are lower. On the other hand, the two stage injection strategy can effectively reduce the PRR. As the interval between pilot injection and main injection increases, the PRR firstly reduces rapidly and then increase eventually. With the higher pilot injection ratio, the longer interval control method should be adopted to reduce the PRR. By using the optimized two stage injection strategy, the poor controllability can be significantly improved, which is beneficial to achieve the high efficient combustion on a broader operation scope. |
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