Computational study on the effects of exhaust gas recirculation on thermal and emission characteristics of HCCI diesel engine
Publish place: Automotive Science and Engineering، Vol: 8، Issue: 4
Publish Year: 1397
نوع سند: مقاله ژورنالی
زبان: English
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شناسه ملی سند علمی:
JR_IJAEIU-8-4_003
تاریخ نمایه سازی: 4 دی 1402
Abstract:
In this paper, a computational in-cylinder analysis of HCCI diesel engine was carried out using IC Engine FORTE (ANSYS ۱۸.۲) software package. The analysis used pre-defined industry standard CHEMKIN format for specifying a chemical reaction mechanism during the combustion duration. The investigation was carried out for the effects of various EGR mass percentages on the thermal and emission characteristics of a diesel engine running on HCCI mode of combustion. It was observed that an increase in EGR concentration resulted in the decrease in peak in-cylinder pressure and temperature and it was also found that when the EGR rates were increased beyond ۷۵% there was no combustion happening within the cylinder. A considerable decrease in the NOx emissions was found with an increase in EGR mass percentage with almost negligible values when the EGR rates were increased beyond ۵۰%, however there was a slight increase in un-burnt hydrocarbons.
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Authors
Mushtaq Ahmad Rather
National Institute of Technology, Srinagar, Kashmir, J;K. INDIA
Mohammad Marouf Wani
National Institute of Technology, Srinagar, Kashmir, J;K. INDIA
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