Investigation of the mechanism in RIJKE pulse combustors with tangential air and fuel injection. Progress report, August 1, 1992--January 31, 1993

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This report summarizes the accomplishments of DOE Contract No. DE-AS04-85AL31881. This three year investigation started in August 1989 and its objective was to elucidate the mechanisms that control the driving of pulsations in the liquid fuel burning, Rijke type, pulse combustor developed under a preceding DOE contracts. It was demonstrated in that contract that the developed Rijke type pulse combustor can burn a variety of light and heavy liquid fuel oils with high combustion efficiencies while using low excess air, which produces high thermal efficiencies. Since the elucidation of the driving mechanism in the Rijke pulse combustor required the use ... continued below

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75 p.

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Zinn, B.T.; Jagoda, J.I.; Daniel, B.R. & Bai, T. February 1, 1993.

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Description

This report summarizes the accomplishments of DOE Contract No. DE-AS04-85AL31881. This three year investigation started in August 1989 and its objective was to elucidate the mechanisms that control the driving of pulsations in the liquid fuel burning, Rijke type, pulse combustor developed under a preceding DOE contracts. It was demonstrated in that contract that the developed Rijke type pulse combustor can burn a variety of light and heavy liquid fuel oils with high combustion efficiencies while using low excess air, which produces high thermal efficiencies. Since the elucidation of the driving mechanism in the Rijke pulse combustor required the use of optical diagnostics (e.g., radiation measurements), it was decided to perform these investigations in a Rijke pulse combustor that burned propane instead of a liquid fuel in order to avoid difficulties that are often encountered due to the presence of liquid droplets in the combustion region. Consequently, an effort was made to develop a Rijke pulse combustor that is similar to the one developed in the preceding program and demonstrated similar performance characteristics. Such a pulse combustor was developed in the early phases of this program. The developed experimental setup was provided with capabilities for measuring steady combustor temperature distributions, the characteristics of the excited pressure oscillations, the exhaust flow composition, the characteristics of the flow field and the reaction rates. This pulse combustor consists of a cylindrical tube that is attached to a decoupling chamber at each end. Fuel and air are supplied via a tangential air/fuel injection system that is located at a distance of L/4 from the combustor entrance, where L is the combustor length. Part of the combustor tube, where combustion occurs, is water cooled. This section is also equipped with flat quartz windows to permit optical diagnostics.

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75 p.

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OSTI as DE96014786

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  • Other Information: PBD: Feb 1993

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  • Other: DE96014786
  • Report No.: DOE/AL/31881--T21
  • Grant Number: AS04-85AL31881
  • DOI: 10.2172/369697 | External Link
  • Office of Scientific & Technical Information Report Number: 369697
  • Archival Resource Key: ark:/67531/metadc677080

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  • February 1, 1993

Added to The UNT Digital Library

  • July 25, 2015, 2:20 a.m.

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  • Dec. 1, 2015, 4:09 p.m.

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Zinn, B.T.; Jagoda, J.I.; Daniel, B.R. & Bai, T. Investigation of the mechanism in RIJKE pulse combustors with tangential air and fuel injection. Progress report, August 1, 1992--January 31, 1993, report, February 1, 1993; United States. (digital.library.unt.edu/ark:/67531/metadc677080/: accessed December 15, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.