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Issue 5, 2016
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Micro-ratcheted surfaces for a heat engine biomass conveyor

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Abstract

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.

Graphical abstract: Micro-ratcheted surfaces for a heat engine biomass conveyor

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Supplementary files

Article information


Submitted
18 Feb 2016
Accepted
04 Mar 2016
First published
07 Mar 2016

This article is Open Access

Energy Environ. Sci., 2016,9, 1645-1649
Article type
Communication

Micro-ratcheted surfaces for a heat engine biomass conveyor

C. Krumm, S. Maduskar, A. D. Paulsen, A. D. Anderson, N. L. Barberio, J. N. Damen, C. A. Beach, S. Kumar and P. J. Dauenhauer, Energy Environ. Sci., 2016, 9, 1645
DOI: 10.1039/C6EE00519E

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