Micro-ratcheted surfaces for a heat engine biomass conveyor

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

doi:10.1039/c6ee00519e

Micro-ratcheted surfaces for a heat engine biomass conveyor

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

Chemical Engineering and Materials Science

Research output: Contribution to journal › Article › peer-review

11 Scopus citations

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.

Original language	English (US)
Pages (from-to)	1645-1649
Number of pages	5
Journal	Energy and Environmental Science
Volume	9
Issue number	5
DOIs	https://doi.org/10.1039/c6ee00519e
State	Published - May 2016

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Publisher Copyright:
© 2016 The Royal Society of Chemistry.

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AU - Krumm, Christoph

AU - Maduskar, Saurabh

AU - Paulsen, Alex D.

AU - Anderson, Anthony D.

AU - Barberio, Nicholas L.

AU - Damen, Jonathan N.

AU - Beach, Connor A.

AU - Kumar, Satish

AU - Dauenhauer, Paul J.

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AB - 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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Micro-ratcheted surfaces for a heat engine biomass conveyor

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