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

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3. Experimental setups Figure 3.10: The new plenum for the DLE high pressure facility experiments. The ceramic beads insulate the igniter lead. The measurements in the pressurized full burner setup were conducted with preheated air of 650 K. The gas tested was natural gas diluted with nitrogen to Wobbe index 40 MJ/m 3 and 30 MJ/m 3 . The pressures were 3, 4.5 and 6 bar. 28
CHAPTER 4 Diagnostic methods Several measurement methods were used in this thesis. The methods ranged from thermocouple measurements to advanced laser-based methods. In this chapter, the optical methods will be described. The diagnostic methods described here are Particle Image Velocimetry (PIV), Laser Induced Florescence (LIF) and Schlieren imaging. 4.1 Particle Image Velocimetry The performance of gas turbine combustion is determined by the combination of chemical kinetic and fluid dynamic interactions. Consequently, the combustion phenomena are controlled and optimized not only by pure chemical interactions of species but also by how the fluid mechanics allow or limit these chemical interactions to take place. In order to identify the interaction between chemistry and fluid dynamics, it is important to be measure the fluid motion of the combustion zone. This can be done by using optical techniques such as PIV [35]. PIV gives an instantaneous two-dimensional image of the flow field (Figure 4.1). In this section, the PIV methodology will be reviewed, starting from choice 29
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 18 and 19: CONTENTS 4.2 OH-Laser Induced Fluor
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: 3.4. The pressurized full burner se
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 69 and 70: 5.2. Combustion chemistry reactions
Page 73 and 74: 5.3. Chemistry and fluid dynamics c
Page 81 and 82: 5.4. Fluid dynamics in a swirl comb
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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