Micro-ratcheted surfaces for a heat engine biomass conveyor [electronic resource]

• Ngôn ngữ: eng
• Ký hiệu phân loại: 621.47 Solar-energy engineering
• Thông tin xuất bản: Washington, D.C. : Oak Ridge, Tenn. : United States. Dept. of Energy. Office of Science ; Distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy, 2016
• Mô tả vật lý: Size: p. 1645-1649 : , digital, PDF file.
• Bộ sưu tập: Metadata
• ID: 263518
• Chủ đề: 1. 09 biomass fuels; 2. 42 engineering

Tóm tắt

 Cellulosic particles on surfaces consisting of microstructured, asymmetric ratchets (100 by 400 ?m) were observed to spontaneously move orthogonal to ratchet wells above the cellulose reactive Leidenfrost temperature (>
 750 �C). Evaluation of the accelerating particles supported the mechanism of propelling viscous forces (50?200 nN) from rectified pyrolysis vapors, thus providing the first example of biomass conveyors with no moving parts driven by high temperature for biofuel reactors.