Reduced Petroleum Use Through Easily Reformed Fuels and Dedicated Exhaust Gas Recirculation [electronic resource]

• Ngôn ngữ: eng
• Ký hiệu phân loại: 621.43 Internal-combustion engines
• Thông tin xuất bản: Washington, D.C. : Oak Ridge, Tenn. : United States. Dept. of Energy. Office of Energy Efficiency and Renewable Energy ; Distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy, 2020
• Mô tả vật lý: Size: 22 p. : , digital, PDF file.
• Bộ sưu tập: Metadata
• ID: 266221
• Chủ đề: 1. 33 advanced propulsion systems; 2. D-egr; 3. Gasoline; 4. Spark ignition

Tóm tắt

 This project was proposed to demonstrate a >
 25% reduction in petroleum usage for a light duty SI vehicle by synergistically combining the Dedicated EGR combustion system developed at SwRI with modified fuel formulations incoroporating biofuel components. Typically, a D-EGR engine yields a 10% gain in fuel efficiency relative to the base engine through a combination of improved thermodynamic efficiency from the EGR application and the significant increase in compression ratio realized through the knock reduction benefits of EGR and hydrogen addition. As the D-EGR performance is strongly linked to hydrogen production, the proposal team anticipated that gasoline formulation changes could enhance the hydrogen production rate relative to a conventional gasoline. This was expected to provide additional efficiency gains to the engine. The final step of incorporating biofuel components would then yield a final result meeting the >
 25% petroleum reduction target.