0

Full Content is available to subscribers

Subscribe/Learn More  >

Development of a Multilayer Mesoscale Burner Array for Gas Turbine Reheat

[+] Author Affiliations
S. Lee, C. F. Edwards, C. T. Bowman

Stanford University

Paper No. IMECE2004-61050, pp. 3-8; 6 pages
doi:10.1115/IMECE2004-61050
From:
  • ASME 2004 International Mechanical Engineering Congress and Exposition
  • Advanced Energy Systems
  • Anaheim, California, USA, November 13 – 19, 2004
  • Conference Sponsors: Advanced Energy Systems Division
  • ISBN: 0-7918-4701-2 | eISBN: 0-7918-4178-2, 0-7918-4179-0, 0-7918-4180-4
  • Copyright © 2004 by ASME

abstract

Mesoscale burner arrays allow combustion to be conducted in a distributed fashion at the millimeter (meso) scale. At this scale, diffusive processes are fast, but not yet dominant, such that a number of advantages over conventional burners can be achieved without giving up the possibility to use fluid inertia to advantage. Since the scale of the reaction zone follows from the scale at which the reactants are mixed, very compact flames result. We expect that this compact, distributed form of combustion can provide not only the opportunity of inter-turbine reheat, but also the potential for lean premixed or highly vitiated combustion to suppress NOX emissions. In previous work, a 4×4 array, with burner elements on 5-mm centers, was fabricated in silicon nitride using shape deposition manufacturing. Results from both fully premixed (mixing prior to the array) and partially premixed (mixing in the array) configurations demonstrated the degree to which premixed performance can be achieved with this design and pointed to ways in which the array design could be improved. In the present work, a next-generation 6×6 array has been developed and tested. Major design changes in this array include use of a combination of bluff-body and swirl flame stabilization and a multilayer architecture with a separate fuel manifold for more uniform fuel distribution. In this multilayer design, the array is fabricated in three separate pieces, one of which is a vaporization layer designed for use with liquid fuels. Results using gaseous fuel (methane) in a fully premixed operating condition, including pressure drop, flame stability, temperature distribution in the burned gas, and NOx emissions, are reported for both bluff-body and no-bluff-body configurations. Tests for a partially premixed configuration are being carried out to evaluate the potential of the design modifications.

Copyright © 2004 by ASME

Figures

Tables

Interactive Graphics

Video

Country-Specific Mortality and Growth Failure in Infancy and Yound Children and Association With Material Stature

Use interactive graphics and maps to view and sort country-specific infant and early dhildhood mortality and growth failure data and their association with maternal

NOTE:
Citing articles are presented as examples only. In non-demo SCM6 implementation, integration with CrossRef’s "Cited By" API will populate this tab (http://www.crossref.org/citedby.html).

Some tools below are only available to our subscribers or users with an online account.

Related Content

Customize your page view by dragging and repositioning the boxes below.

Related eBook Content
Topic Collections

Sorry! You do not have access to this content. For assistance or to subscribe, please contact us:

  • TELEPHONE: 1-800-843-2763 (Toll-free in the USA)
  • EMAIL: asmedigitalcollection@asme.org
Sign In