Evaluation of ash particle rebounds in a simulated gas turbine environment

Michael J. Lawrence; Steven M. Whitaker; Jeffrey P. Bons; Manuel R. Villalpando; Teresa Palacios Garcia; Edgar Lara-Curzio

doi:10.2514/6.2014-1156

Evaluation of ash particle rebounds in a simulated gas turbine environment

Michael J. Lawrence, Steven M. Whitaker, Jeffrey P. Bons, Manuel R. Villalpando, Teresa Palacios Garcia, Edgar Lara-Curzio

Energy Science and Technology Directorat

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

1 Scopus citations

Abstract

A combustion rig was used to determine the coefficient of restitution of bituminous ash particles in a simulated gas turbine environment up to temperatures of 2100°F. The impact angle, impact velocity, particle size, and particle temperature were varied, and the effects of these variables on the particle rebound characteristics were examined. For the ash tested in these experiments, it was found that the total coefficient of restitution generally decreased with particle size and impact velocity. Unexpectedly, the coefficient of restitution increased with temperature up to approximately 1500-1750°F, before decreasing at higher temperatures. Similarly, the coefficient of restitution increased with increasing impact angle up to approximately 40°, before generally decreasing toward 90°. Possible explanations for these trends are discussed.

Original language	English
Title of host publication	52nd Aerospace Sciences Meeting
Publisher	American Institute of Aeronautics and Astronautics Inc.
Pages	1-16
Number of pages	16
ISBN (Electronic)	9781624102561
DOIs	https://doi.org/10.2514/6.2014-1156
State	Published - 2014
Event	52nd Aerospace Sciences Meeting 2014 - National Harbor, United States Duration: Jan 13 2014 → Jan 17 2014

Publication series

Name	52nd Aerospace Sciences Meeting

Conference

Conference	52nd Aerospace Sciences Meeting 2014
Country/Territory	United States
City	National Harbor
Period	01/13/14 → 01/17/14

Bibliographical note

Publisher Copyright:
© 2015 American Institute of Aeronautics and Astronautics Inc. All rights reserved.

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10.2514/6.2014-1156

Cite this

@inproceedings{3c7f09d0e5334f0e993221e2d4ef20c7,

title = "Evaluation of ash particle rebounds in a simulated gas turbine environment",

abstract = "A combustion rig was used to determine the coefficient of restitution of bituminous ash particles in a simulated gas turbine environment up to temperatures of 2100°F. The impact angle, impact velocity, particle size, and particle temperature were varied, and the effects of these variables on the particle rebound characteristics were examined. For the ash tested in these experiments, it was found that the total coefficient of restitution generally decreased with particle size and impact velocity. Unexpectedly, the coefficient of restitution increased with temperature up to approximately 1500-1750°F, before decreasing at higher temperatures. Similarly, the coefficient of restitution increased with increasing impact angle up to approximately 40°, before generally decreasing toward 90°. Possible explanations for these trends are discussed.",

author = "Lawrence, {Michael J.} and Whitaker, {Steven M.} and Bons, {Jeffrey P.} and Villalpando, {Manuel R.} and Garcia, {Teresa Palacios} and Edgar Lara-Curzio",

note = "Publisher Copyright: {\textcopyright} 2015 American Institute of Aeronautics and Astronautics Inc. All rights reserved.; 52nd Aerospace Sciences Meeting 2014 ; Conference date: 13-01-2014 Through 17-01-2014",

year = "2014",

doi = "10.2514/6.2014-1156",

language = "English",

series = "52nd Aerospace Sciences Meeting",

publisher = "American Institute of Aeronautics and Astronautics Inc.",

pages = "1--16",

booktitle = "52nd Aerospace Sciences Meeting",

}

Lawrence, MJ, Whitaker, SM, Bons, JP, Villalpando, MR, Garcia, TP & Lara-Curzio, E 2014, Evaluation of ash particle rebounds in a simulated gas turbine environment. in 52nd Aerospace Sciences Meeting. 52nd Aerospace Sciences Meeting, American Institute of Aeronautics and Astronautics Inc., pp. 1-16, 52nd Aerospace Sciences Meeting 2014, National Harbor, United States, 01/13/14. https://doi.org/10.2514/6.2014-1156

Evaluation of ash particle rebounds in a simulated gas turbine environment. / Lawrence, Michael J.; Whitaker, Steven M.; Bons, Jeffrey P. et al.
52nd Aerospace Sciences Meeting. American Institute of Aeronautics and Astronautics Inc., 2014. p. 1-16 (52nd Aerospace Sciences Meeting).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

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T1 - Evaluation of ash particle rebounds in a simulated gas turbine environment

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AU - Whitaker, Steven M.

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AU - Villalpando, Manuel R.

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AU - Lara-Curzio, Edgar

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AB - A combustion rig was used to determine the coefficient of restitution of bituminous ash particles in a simulated gas turbine environment up to temperatures of 2100°F. The impact angle, impact velocity, particle size, and particle temperature were varied, and the effects of these variables on the particle rebound characteristics were examined. For the ash tested in these experiments, it was found that the total coefficient of restitution generally decreased with particle size and impact velocity. Unexpectedly, the coefficient of restitution increased with temperature up to approximately 1500-1750°F, before decreasing at higher temperatures. Similarly, the coefficient of restitution increased with increasing impact angle up to approximately 40°, before generally decreasing toward 90°. Possible explanations for these trends are discussed.

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PB - American Institute of Aeronautics and Astronautics Inc.

T2 - 52nd Aerospace Sciences Meeting 2014

Y2 - 13 January 2014 through 17 January 2014

ER -

Evaluation of ash particle rebounds in a simulated gas turbine environment

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