investigation of a prototype industrial gas turbine combustor using ...

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CONTENTS 4.2 OH-Laser Induced Fluorescence . . . . . . . . . . . . . . . 33 4.3 Schlieren imaging . . . . . . . . . . . . . . . . . . . . . . . 34 5 Combustor theory – Combustion chemistry and fluid dynamics in a premixed swirl combustor 37 5.1 The Borghi diagram . . . . . . . . . . . . . . . . . . . . . 38 5.2 Combustion chemistry . . . . . . . . . . . . . . . . . . . . 41 5.2.1 Emissions . . . . . . . . . . . . . . . . . . . . . . . 41 5.3 Chemistry and fluid dynamics coupled phenomena . . . . 50 5.3.1 Flame stretch (applied on a laminar conical flame) 51 5.3.2 Lean blowout . . . . . . . . . . . . . . . . . . . . . 55 5.4 Fluid dynamics in a swirl combustor . . . . . . . . . . . . 59 6 Concluding remarks 65 7 Summary of publications 69 Appendices 77 A Flow visualization using Proper Orthogonal Decomposition 79 xviii
List of Figures 2.1 The SIT gas turbine, SGT-750. . . . . . . . . . . . . . . . 8 2.2 Temperature entropy diagram for the Brayton cycle. . . . 9 2.3 Thermal efficiency vs Specific Power. . . . . . . . . . . . . 11 2.4 Schematic illustration of a general combustor. . . . . . . . 12 2.5 Cross section of the SIT burner. . . . . . . . . . . . . . . . 13 2.6 Variation of recirculated mass flow with swirl number. . . 14 2.7 Combustion efficiency as function of combustor loading. . 15 3.1 Flame half angles. . . . . . . . . . . . . . . . . . . . . . . 18 3.2 The dual fan system with heaters and flow meters. . . . . 20 3.3 Glowing liner after burner. . . . . . . . . . . . . . . . . . . 21 3.4 Setup for the atmospheric experiments. . . . . . . . . . . . 22 3.5 Combustion of syngas without the liner. . . . . . . . . . . 23 3.6 The connection piece of the high pressure facility. . . . . . 24 3.7 Burner plenum for high pressure RPL experiments. . . . . 25 3.8 The new plenum and test section. . . . . . . . . . . . . . . 26 3.9 High pressure facility flow chart. . . . . . . . . . . . . . . 27 3.10 The new plenum with ceramic beads. . . . . . . . . . . . . 28 4.1 Single shot PIV images showing the recirculation zone. . . 30 4.2 PIV schematic image. . . . . . . . . . . . . . . . . . . . . 32 xix
Page 1 and 2: INVESTIGATION OF A PROTOTYPE INDUST
Page 3 and 4: Populärvetenskaplig Sammanfattning
Page 5 and 6: Abstract In this thesis, the effect
Page 7 and 8: Acknowledgements Without inspiring
Page 9 and 10: List of Papers In this thesis 9 pap
Page 11 and 12: NOMENCLATURE A pre exponential fact
Page 13 and 14: Greek symbols α flame half angle
Page 15: LIF PFR PIV POD PSR RPL SGT SIT SOT
Page 20 and 21: LIST OF FIGURES 4.3 Schematic energ
Page 23 and 24: CHAPTER 1 Introduction Throughout h
Page 25 and 26: 1.2. Objectives ature zones of the
Page 27 and 28: 1.5. Outline of thesis setup to inv
Page 29 and 30: CHAPTER 2 Gas Turbine Combustor To
Page 31 and 32: Figure 2.2: Temperature entropy dia
Page 33 and 34: 2.1. The combustor Figure 2.3: Ther
Page 35 and 36: 2.1. The combustor Figure 2.5: Cros
Page 37 and 38: 2.1. The combustor Figure 2.7: Illu
Page 39 and 40: CHAPTER 3 Experimental setups The g
Page 41 and 42: 3.2. The atmospheric full burner se
Page 43 and 44: 3.2. The atmospheric full burner se
Page 45 and 46: 3.3. The pressurized central body b
Page 47 and 48: 3.3. The pressurized central body b
Page 49 and 50: 3.4. The pressurized full burner se
Page 51 and 52: CHAPTER 4 Diagnostic methods Severa
Page 53 and 54: 4.1. Particle Image Velocimetry the
Page 55 and 56: 4.2. OH-Laser Induced Fluorescence
Page 57 and 58: 4.3. Schlieren imaging beam between
Page 59 and 60: CHAPTER 5 Combustor theory - Combus
Page 61 and 62: 5.1. The Borghi diagram The corresp
Page 63 and 64: 5.2. Combustion chemistry Changing
Page 65 and 66: 5.2. Combustion chemistry Figure 5.
Page 67 and 68: 5.2. Combustion chemistry Figure 5.
Page 69 and 70:
5.2. Combustion chemistry reactions
Page 71 and 72:
5.2. Combustion chemistry Figure 5.
Page 73 and 74:
5.3. Chemistry and fluid dynamics c
Page 75 and 76:
Page 77 and 78:
Page 79 and 80:
Page 81 and 82:
5.4. Fluid dynamics in a swirl comb
Page 83 and 84:
Page 85 and 86:
Page 87 and 88:
CHAPTER 6 Concluding remarks This t
Page 89 and 90:
ecirculation zone for the same sett
Page 91 and 92:
CHAPTER 7 Summary of publications P
Page 93 and 94:
Paper III: Investigation of a Premi
Page 95 and 96:
Paper VI: CFD Investigation of Swir
Page 97 and 98:
Paper IX: Experimental Investigatio
Page 99:
Appendices 77
Page 102 and 103:
A. Flow visualization using Proper
Page 104 and 105:
Page 106 and 107:
Page 109 and 110:
Bibliography [1] Genrup, M., and Th
Page 111 and 112:
[17] Syred, N., and Beér, J. M., 1
Page 113 and 114:
[37] Samimy, M., and Lele, S. K., 1
Page 115 and 116:
[58] DARS - Software for Digital An
Page 117 and 118:
like combustor: Experimental result
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