Investigation of pulverized, pre-dried lignite combustion under oxy-fired conditions in a large-scale laboratory furnace:
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| Format: | Thesis Book |
| Language: | English |
| Published: |
2013
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| Subjects: | |
| Online Access: | kostenfrei Inhaltsverzeichnis |
| Physical Description: | XXI, 250 S. Ill., graph. Darst. |
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| 100 | 1 | |a Corrêa da Silva, Rodrigo |e Verfasser |4 aut | |
| 245 | 1 | 0 | |a Investigation of pulverized, pre-dried lignite combustion under oxy-fired conditions in a large-scale laboratory furnace |c vorgelegt von Rodrigo Corrêa da Silva |
| 264 | 1 | |c 2013 | |
| 300 | |a XXI, 250 S. |b Ill., graph. Darst. | ||
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Record in the Search Index
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| adam_text | IMAGE 1
V I
TABLE O F CONTENTS
PREFACE AND ACKNOWLEDGMENTS IV
TABLE O F CONTENTS VI
NOMENCLATURE X
ABBREVIATION XVI
ABSTRACT XVIII
KURZFASSUNG XX
1 INTRODUCTION 2
1.1 THE FUTURE O F COAL ENERGY 2
1.2 DEVELOPMENT PATHWAY O F OXY-FUEL TECHNOLOGY 5
1.3 OBJECTIVES AND PRESENT CONTRIBUTION 6
1.4 OUTLINE 7
2 LITERATURE REVIEW 10
2.1 INTRODUCTION 10
2.2 GENERAL IMPACTS O F OXY-FIRED CONDITIONS 10
2.3 THE PHYSICAL CHEMISTRY OFOXY-COAL COMBUSTION 12
2.4 CONSIDERATIONS FOR TEMPERATURE AND FLAME CHARACTERISTICS 15
2.5 CONSIDERATIONS FOR HEAT TRANSFER 19
2.6 CONSIDERATIONS FOR OXYGEN, CARBON MONOXIDE, AND CARBON DIOXIDE... 20
2.7 CONSIDERATIONS FOR EMISSIONS O F NITROGEN OXIDES 22
2.8 CONSIDERATIONS FOR EMISSIONS O F SULFUR OXIDES 28
2.9 MAJOR FINDINGS FROM PREVIOUS STUDIES AND REMAINING RESEARCH ISSUES30
3 EXPERIMENTAL METHOD 3 4
3.1 DESCRIPTION O F THE LABORATORY FACILITY 34
J. 1.1 COAL F E E D SYSTEM 35
3.1.2 FURNACE 36
3.1.3 STAGED FEED- GAS B URNER 37
3.1.4 FLUE GAS SCRUBBER 39
3.1.5 OTHER COMPONENTS 4 0
3.2 INSTRUMENTATION AND MEASUREMENTS 41
3.2.1 COMBUSTION INPUTS A N D OUTPUTS 41
HTTP://D-NB.INFO/1033421847
IMAGE 2
V I I
3.2.2 LOCAL GAS-PHASE TEMPERATURE 42
3.2.3 LOCAL GAS SPECIES 4 4
3.2.4 SOLID SAMPLING 45
3.2.5 TOTAL RADIATIVE HEAT FLUX 45
3.2.6 SURFACE TEMPERATURE A N D HEAT FLUX AT THE WATER-COOLED WALLS 4 7
3.2. 7 FLAME PATTERN AND P E A K FLAME TEMPERATURES 4 8
3.2.8 SAMPLING POINTS A N D DATA PRESENTATION 4 9
4 THEORETICAL STUDY O F COMBUSTION-RELATED PARAMETERS AND BURNER
AERODYNAMICS 5 2
4.1 INTRODUCTION 52
4.2 BASIC COMBUSTION PARAMETERS 52
4.2.1 MATHEMATICAL FORMULATION 52
4.2.2 OXYGEN-FUEL RATIO 53
4.2.3 ADIABATIC FLAME TEMPERATURE AND F E E D GAS FLOW RATE 54
4.2.4 FLUE GAS COMPOSITION 56
4.3 FLOW PATTERN 57
4.3.1 MATHEMATICAL MODELS 58
4.3.2 COMPUTATIONAL DOMAIN AND MESH REFINEMENT 61
4.3.3 TEST CASES A N D BOUNDARY CONDITIONS 62
4.3.4 RESULTS 63
4.3.4.1 MESH ANALYSIS 63
4.3.4.2 EFFECT O F VANE ANGLES 65
4.3.4.3 EFFECT O F F E E D GAS DISTRIBUTION 66
4.3.4.4 EFFECT O F F E E D GAS COMPOSITION 68
4.3.4.5 SWIRL NUMBER 73
5 EXPERIMENTAL RESULTS AND DISCUSSION 7 6
5.1 INTRODUCTION 76
5.2 OPERATING CONDITIONS 76
5.3 FLAME PATTERN 79
5.4 PEAK FLAME TEMPERATURES 8 3
5.5 FLAME STABILITY 85
5.6 HEAT TRANSFER PERFORMANCE 88
5.7 CARBON MONOXIDE EMISSION AND BURNOUT EFFICIENCY 93
5.8 NITRIC OXIDE EMISSIONS 94
IMAGE 3
5.9 SULFUR DIOXIDE EMISSIONS 98
5.10 DETAILED IN-FLAME MEASUREMENTS 99
5.10.1 LOCAL GAS-PHASE TEMPERATURE 101
5.10.2 LOCAL OXYGEN A N D CARBON DIOXIDE CONCENTRATION 106
5.10.3 LOCAL CARBON MONOXIDE A N D METHANE CONCENTRATION 112
5.10.4 LOCAL NITRIC OXIDE CONCENTRATION 118
5.10.5 TOTAL RADIATIVE HEAT FLUX 122
6 CONCLUSIONS AND RECOMMENDATIONS 126
6.1 SUMMARY AND MAJOR FINDINGS FROM THE THEORETICAL STUDY 127
6.2 SUMMARY AND MAJOR FINDINGS FROM THE EXPERIMENTAL STUDY 128
6.3 SUGGESTIONS FOR FURTHER STUDY 132
7 REFERENCES 134
APPENDIX A - EXPERIMENTAL UNCERTAINTY ASSESSMENT 146
A.2 GENERAL PROCEDURE FOR DETERMINING UNCERTAINTY 146
A.2.1 MODELING THE MEASUREMENT 146
A.2.2 EVALUATING STANDARD UNCERTAINTY 146
A.2.3 DETERMINING COMBINED STANDARD UNCERTAINTY 148
A.2.4 DETERMINING EXPANDED UNCERTAINTY 148
A.3 ASSESSING MEASUREMENT UNCERTAINTY O F INPUT AND OUTPUT COMBUSTION
PARAMETERS 150
A.4 ASSESSING MEASUREMENT UNCERTAINTY O F LOCAL GAS TEMPERATURE 167
A.5 ASSESSING MEASUREMENT UNCERTAINTY O F PEAK FLAME TEMPERATURES ....
169
A.6 ASSESSING UNCERTAINTY IN LOCAL GAS SPECIES MEASUREMENT 170
A.7 ASSESSING MEASUREMENT UNCERTAINTY O F TOTAL RADIATIVE HEAT FLUX ....
176
A.8 ASSESSING MEASUREMENT UNCERTAINTY O F LOCAL HEAT FLUX AT THE
WATERCOOLED WALLS 178
APPENDIX B - EXPERIMENTAL DATA SETS 180
B.I AIR-FLAME 180
B.2 OXY-FLAME 1 194
B.3 OXY-FLAME 2 208
B.4 OXY-FLAME 3 222
B.5 OXY-FLAME 4 .-. 236
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| author_facet | Corrêa da Silva, Rodrigo |
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| spelling | Corrêa da Silva, Rodrigo Verfasser aut Investigation of pulverized, pre-dried lignite combustion under oxy-fired conditions in a large-scale laboratory furnace vorgelegt von Rodrigo Corrêa da Silva 2013 XXI, 250 S. Ill., graph. Darst. txt rdacontent n rdamedia nc rdacarrier Cottbus, Techn. Univ., Diss., 2013 Oxyfuel-Verfahren (DE-588)7628163-2 gnd rswk-swf Kohlenstaubbrenner (DE-588)4164534-0 gnd rswk-swf (DE-588)4113937-9 Hochschulschrift gnd-content Kohlenstaubbrenner (DE-588)4164534-0 s Oxyfuel-Verfahren (DE-588)7628163-2 s DE-604 Erscheint auch als Online-Ausgabe urn:nbn:de:kobv:co1-opus-27489 http://opus.kobv.de/btu/volltexte/2013/2748/ kostenfrei Volltext DNB Datenaustausch application/pdf http://bvbr.bib-bvb.de:8991/F?func=service&doc_library=BVB01&local_base=BVB01&doc_number=025786908&sequence=000001&line_number=0001&func_code=DB_RECORDS&service_type=MEDIA Inhaltsverzeichnis |
| spellingShingle | Corrêa da Silva, Rodrigo Investigation of pulverized, pre-dried lignite combustion under oxy-fired conditions in a large-scale laboratory furnace Oxyfuel-Verfahren (DE-588)7628163-2 gnd Kohlenstaubbrenner (DE-588)4164534-0 gnd |
| subject_GND | (DE-588)7628163-2 (DE-588)4164534-0 (DE-588)4113937-9 |
| title | Investigation of pulverized, pre-dried lignite combustion under oxy-fired conditions in a large-scale laboratory furnace |
| title_auth | Investigation of pulverized, pre-dried lignite combustion under oxy-fired conditions in a large-scale laboratory furnace |
| title_exact_search | Investigation of pulverized, pre-dried lignite combustion under oxy-fired conditions in a large-scale laboratory furnace |
| title_full | Investigation of pulverized, pre-dried lignite combustion under oxy-fired conditions in a large-scale laboratory furnace vorgelegt von Rodrigo Corrêa da Silva |
| title_fullStr | Investigation of pulverized, pre-dried lignite combustion under oxy-fired conditions in a large-scale laboratory furnace vorgelegt von Rodrigo Corrêa da Silva |
| title_full_unstemmed | Investigation of pulverized, pre-dried lignite combustion under oxy-fired conditions in a large-scale laboratory furnace vorgelegt von Rodrigo Corrêa da Silva |
| title_short | Investigation of pulverized, pre-dried lignite combustion under oxy-fired conditions in a large-scale laboratory furnace |
| title_sort | investigation of pulverized pre dried lignite combustion under oxy fired conditions in a large scale laboratory furnace |
| topic | Oxyfuel-Verfahren (DE-588)7628163-2 gnd Kohlenstaubbrenner (DE-588)4164534-0 gnd |
| topic_facet | Oxyfuel-Verfahren Kohlenstaubbrenner Hochschulschrift |
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