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

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Micro-ratcheted surfaces for a heat engine biomass conveyor†

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

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* Corresponding authors

^a Department of Chemical Engineering and Materials Science, University of Minnesota, 421 Washington Ave. SE, Minneapolis, MN 55455, USA
E-mail: hauer@umn.edu

^b Catalysis Center for Energy Innovation, a U.S. Department of Energy – Energy Frontier Research Center,
Web: http://www.efrc.udel.edu

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.

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DOI: https://doi.org/10.1039/C6EE00519E
Article type: Communication
Submitted: 18 Feb 2016
Accepted: 04 Mar 2016
First published: 07 Mar 2016
This article is Open Access

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Energy Environ. Sci., 2016,9, 1645-1649

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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

This article is licensed under a Creative Commons Attribution 3.0 Unported Licence. You can use material from this article in other publications without requesting further permissions from the RSC, provided that the correct acknowledgement is given.

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Energy & Environmental Science

Micro-ratcheted surfaces for a heat engine biomass conveyor†

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Micro-ratcheted surfaces for a heat engine biomass conveyor

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