Investigation of methyl decanoate combustion in an optical direct-injection diesel engine [electronic resource]

• Ngôn ngữ: eng
• Ký hiệu phân loại: 629.2 Motor land vehicles, cycles
• Thông tin xuất bản: Washington, D.C. : Oak Ridge, Tenn. : United States. National Nuclear Security Administration ; Distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy, 2014
• Mô tả vật lý: Size: p. 7689-7700 : , digital, PDF file.
• Bộ sưu tập: Metadata
• ID: 265966
• Chủ đề: 1. 33 advanced propulsion systems; 2. Compression-ignition; 3. Diesel; 4. Engines; 5. Oxygenated fuel

Tóm tắt

In this study, an optically accessible heavy-duty diesel engine was used to investigate the impact of methyl decanoate (MD) on combustion and emissions. A specific goal of the study was to determine if MD could enable soot-free leaner-lifted flame combustion (LLFC) ? a mode of mixing-controlled combustion associated with fuel-air equivalence ratios below approximately two. An ultra-low sulfur diesel certification fuel (CF) was used as the baseline fuel, and experiments were conducted at two fuel-injection pressures with three levels of charge-gas dilution. In addition to conventional pressure-based and engine-out emissions measurements, exhaust laser-induced incandescence, in-cylinder natural luminosity (NL), and in-cylinder chemiluminescence (CL) diagnostics were used to provide detailed insight into combustion processes.