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Figure 40. CRM Modeling Results for the Distributed Combustion System........................... 48
Figure 41. Comparison of Blade 1 Midspan Sections (flow turning is more than 25% greater in
the conceptual H2 blade) ...................................................................................... . ........ . 5 1
Figure 42. Turbine Flow/Exit Annulus Area Study ................................................................. 52
Figure 43. Blade 4 Surface Mn Contour (3D CFD)................................................................. 53
Figure 44 . H igh A N 2 B lade 4 S hape ........................................................................................ . 54
Figure 45. Categorization of Preliminary Component Design Concepts Evaluated in Phase 1. 56
Figure 46. Near Wall Channel Concept for Blade 1................................................................. 56
Figure 47. Inlet Casing................................................................................................................. 63
Figure 48. Compressor Intermediate Casing and CCT .......................................................... 64
F igure 4 9 . T E C A sse m bly ..................................................................................................... . . 6 5
Figure 50. TBC Spallation Life as a Function of Bondcoat Composition and Temperature (all
tem peratures w ere in excess of 1000 C ).................................................................................. 66
Figure 51. Micrographs Showing the Microstructures of Modified Bondcoats Exposed at
Elevated Temperature in air Following TBC Spallation ............................................................ 67
Figure 52. Cross Sections Showing Beta Phase Depletion for "C" and "D" Modified Bondcoats
(911 hours of cyclic oxidation in air + 10% water vapor at elevated temperature)................... 68
Figure 53. High Temperature Thermal Conductivity Curves for two TBC Compositions........... 69
Figure 54. The TBCs Under Development have Demonstrated to have Phase Stability at
Tem peratures betw een 1500 and 1850 C ............................................................................. 70
Figure 55. No Phase Changes Occur At Temperatures Up To 1850 C................................. 70
Figure 56 . Bonding A rrangem ent ........................................................................................... . . 74
Figure 57. Channel Block after Coating. Note the rounded morphology of the coating over the
block pillars. .................................................................................................................................. 75
Figure 58. Cross Section through the Coated Channel Block ................................................. 76
Figure 59. Temperature Variation As A Function Of Time At Various Test Piece Locations In
T he H A D E S T est F acility ....................................................................................................... . . 77
Figure 60. Beta Phase Depletion around the Circumference of the Specimen at one
L o n g itu d in a l L o c a tio n .................................................................................................................... 7 8
Figure 61. Coated and Uncoated Testpieces after Exposure in the Cranfield Burner Rig ........ 78
Figure 62. Oxides Formed after Exposure to Combusted Syngas and Natural Gas .............. 79
Figure 63 . C reep S trengths 9................................................................................................ . . 80
Figure 64. Overall Program Earned Value Analysis Chart for FY07 ....................................... 83
Figure 65. IGCC Industry Respondents Position Distribution................................................. 84
Figure 66. Performance Penalty Expectation for CO2 Sequestration..................................... 84
Figure 67. Emissions Reduction with Advanced GT Technology............................................ 85
Figure 68. Efficiency Impact on Plant Power and Plant Costs ($/kW).................................... 86
Figure 69. Reducing Plant Cost ($/kW) with Increased Plant Output...................................... 86
DE-FC26-05NT42644 4
ADVANCED HYDROGEN TURBINE DEVELOPMENT
PHASE 1 FINAL TECHNICAL REPORT
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Fadok, Joesph. Advanced Hydrogen Turbine Development, report, January 1, 2008; United States. (https://digital.library.unt.edu/ark:/67531/metadc900806/m1/4/: accessed April 23, 2024), University of North Texas Libraries, UNT Digital Library, https://digital.library.unt.edu; crediting UNT Libraries Government Documents Department.