Split injection strategies based RCCI combustion analysis with waste cooking oil biofuel and methanol in an open ECU assisted CRDI engine

Nataraj Ganesan, Karthickeyan Viswanathan, S. V. Karthic, Porpatham Ekambaram, Wei Wu, Dai Viet N. Vo

研究成果: Article同行評審

6 引文 斯高帕斯(Scopus)

摘要

The objective of the present study is to investigate the combined effect of split injection techniques and RCCI-dual-fuel combustion in a single-cylinder CRDI research engine operated with waste cooking oil (WCO) biofuel and methanol. Initially, the tests were conducted at a constant speed of 1500 rpm with three fuel injection pressures (FIP) (20, 35 and 50 MPa) and three fuel injection timings (FIT) (23°, 25° and 27° CA bTDC) for the optimization of injection parameters. Then the split injection mode of combustion under optimized fuel injection conditions has been studied. Finally, with an optimized split injection case, the engine operated under RCCI-dual fuel mode to examine the influence of methanol addition in the combustion chamber was explored. The experimental result shows 32.4% thermal efficiency with the combined mode of split injection strategy and RCCI-dual-fuel combustion (at 20% of methanol energy share). In-cylinder pressure was increased from 50 MPa with static injection timing and pressure (ITP) condition to 53 MPa with optimized injection conditions. A substantial decrease in NOx emission was noticed (8.1 g/kWh at the optimized split injection condition) and further reduced to 6.5 g/kWh with RCCI dual-fuel combustion mode. Moreover, under RCCI-dual-mode, the smoke emission was reduced to 19% from 46% (at static ITP condition).

原文English
文章編號123710
期刊Fuel
319
DOIs
出版狀態Published - 2022 7月 1

All Science Journal Classification (ASJC) codes

  • 化學工程 (全部)
  • 燃料技術
  • 能源工程與電力技術
  • 有機化學

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