Micro-ratcheted surfaces for a heat engine biomass conveyor | Zendy

Christoph Krumm | Zendy; Saurabh Maduskar | Zendy; Alex D. Paulsen | Zendy; Anthony D. Anderson | Zendy; Nicholas L. Barberio | Zendy; Jonathan N. Damen | Zendy; Connor A. Beach | Zendy; Satish Kumar | Zendy; Paul J. Dauenhauer | Zendy

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Micro-ratcheted surfaces for a heat engine biomass conveyor

Author(s) -

Christoph Krumm,

Saurabh Maduskar,

Alex D. Paulsen,

Anthony D. Anderson,

Nicholas L. Barberio,

Jonathan N. Damen,

Connor A. Beach,

Satish Kumar,

Paul J. Dauenhauer

Publication year - 2016

Publication title -

energy and environmental science

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 14.486

H-Index - 343

eISSN - 1754-5706

pISSN - 1754-5692

DOI - 10.1039/c6ee00519e

Subject(s) - biomass (ecology) , leidenfrost effect , heat engine , materials science , nanotechnology , chemistry , heat transfer , mechanical engineering , mechanics , engineering , physics , biology , ecology , heat transfer coefficient , nucleate boiling

Cellulosic particles on surfaces consisting of microstructured, asymmetric ratchets (100 by 400 μm) 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.

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