Accession Number : ADA280344


Title :   Composite Matrix Experimental Combustor


Descriptive Note : Final rept.,


Corporate Author : GENERAL MOTORS CORP INDIANAPOLIS IN ALLISON GAS TURBINE DIV


Personal Author(s) : Paskin, Marc D


Full Text : https://apps.dtic.mil/dtic/tr/fulltext/u2/a280344.pdf


Report Date : Apr 1994


Pagination or Media Count : 185


Abstract : A joint Army/NASA program was conducted to design, fabricate, and test an advanced, reverse-flow, small gas turbine combustor utilizing a compliant metal/ceramic (CMC) wall cooling concept. The objectives of this effort were to develop a design method (basic design data base and analysis) for the CMC cooling technique and then demonstrate its application to an advanced cycle, small, reverse-flow combustor with 3000 deg F burner outlet temperature (BOT). The CMC concept offers significant improvements in wall cooling effectiveness resulting in a large reduction in cooling air requirements. Therefore more air is available for control of BOT pattern in addition to the benefits of improved efficiency, reduced emissions, and smoke levels. Task 1 of the program defined component materials and localized design of the composite wall structure in conjunction with development of basic design models for the analysis of flow and heat transfer through the wall. Task 2 required implementation of the selected materials and validated design model during combustor preliminary design. Detail design of the selected combustor concept and its refinement with 3-D aerothermal analysis were completed in Task 3. Task 4 covered detail drawings, process development and fabrication, and a series of burner rig tests. (Author)


Descriptors :   *COMPOSITE MATERIALS , *MATRIX MATERIALS , *COMBUSTORS , *BURNERS , *CERAMIC MATERIALS , *BARRIER COATINGS , *SECONDARY FLOW , HEAT TRANSFER , STEADY STATE , EMISSION , EXPERIMENTAL DESIGN , SMOKE , BLOWOUTS , COLD FLOW , THERMAL SHOCK , AERODYNAMICS , DESIGN CRITERIA , IGNITION , PRESSURE , THERMAL ANALYSIS , GAS TURBINES , REDUCTION , COOLING , FABRICATION , METALS , AIR , LAYERS


Subject Categories : Coatings, Colorants and Finishes
      Laminates and Composite Materials
      Fluid Mechanics
      Combustion and Ignition


Distribution Statement : APPROVED FOR PUBLIC RELEASE