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

Research output: Contribution to journalArticlepeer-review

4 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 languageEnglish (US)
Pages (from-to)1645-1649
Number of pages5
JournalEnergy and Environmental Science
Volume9
Issue number5
DOIs
StatePublished - May 2016

Bibliographical note

Funding Information:
Financial support was provided from the Catalysis Center for Energy Innovation, a U.S. Department of Energy - Energy Frontier Research Center under Award DE-SC0001004. Funding supported researchers N. L. B., P. J. D. and the cost of materials.

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