Simulation of large-scale circulating fluidized bed combustors:
Saved in:
| Main Author: | |
|---|---|
| Format: | Thesis Book |
| Language: | English |
| Published: |
Aachen
Shaker
2009
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| Series: | Berichte aus der Verfahrenstechnik
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| Subjects: | |
| Online Access: | Inhaltsverzeichnis |
| Physical Description: | XII, 171 S. Ill., graph. Darst. |
| ISBN: | 9783832280642 |
Staff View
MARC
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| 245 | 1 | 0 | |a Simulation of large-scale circulating fluidized bed combustors |c Reiner Wischnewski |
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Record in the Search Index
| _version_ | 1804139400005681152 |
|---|---|
| adam_text | VI CONTENTS CONTENTS DANKSAGUNG V NOMENCLATURE IX 1 INTRODUCTION 1 1.1
LARGE-SCALE CIRCULATING FLUIDIZED BED COMBUSTORS 2 1.2 OPERATION OF
CIRCULATING FLUIDIZED BED COMBUSTORS 5 1.3 SIMULATION-SUPPORTED
MEASUREMENTS 7 1.4 AIM OF THE PRESENT WORK 9 2 STATE OF THE ART 11 2.1
LOCAL MEASUREMENTS IN LARGE-SCALE CFB COMBUSTORS 11 2.1.1 MEASUREMENT
TECHNIQUES 12 2.1.2 MEASUREMENT RESULTS 15 2.2 THREE-DIMENSIONAL CFB
COMBUSTOR MODELING 20 2.2.1 COMPUTATIONAL FLUID DYNAMICS 20 2.2.2
COMPREHENSIVE MACROSCOPIC MODELS 23 3 MODEL LAYOUT 28 3.1 STRUCTURE AND
DESIGN 30 3.2 FLUID DYNAMICS AND DISPERSION 32 3.2.1 VERTICAL AVERAGE
FLOWS 33 3.2.2 BOTTOM ZONE 34 3.2.3 SPLASH AND UPPER DILUTE ZONE 35
3.2.4 EXIT ZONE 37 3.2.5 HORIZONTAL CONVECTION 37 3.2.6 JET PENETRATION
39 3.2.7 GAS AND SOLIDS DISPERSION 41 3.3 FUEL DISTRIBUTION AND
VOLATILES RELEASE 42 3.3.1 CHARACTERIZATION OF FUELS 43 3.3.2 TIME OF
DEVOLATILIZATION 44 3.3.3 COMPOSITION OF VOLATILES 45 3.3.4 PRIMARY
FRAGMENTATION 46 BIBLIOGRAFISCHE INFORMATIONEN
HTTP://D-NB.INFO/993341691 DIGITALISIERT DURCH 5.2.3 THREE-DIMENSIONAL
GAS CONCENTRATION FIELDS 121 CONTENTS VII 3.3.5 MODELING CONCEPT 46 3.4
REACTION MODEL 47 3.4.1 MASS TRANSFER TO THE PARTICLE 47 3.4.2
HETEROGENEOUS REACTIONS 48 3.4.3 HETEROGENEOUS CATALYTIC REACTIONS 50
3.4.4 HOMOGENEOUS REACTIONS 51 3.4.5 REACTIONS USED IN THE PRESENT MODEL
51 3.5 MATERIAL BALANCE 54 3.5.1 FUEL CHAR BALANCE DURING
DEVOLATILIZATION 55 3.5.2 CHAR BALANCE 57 3.5.3 GAS BALANCE 60 3.6
CYCLONE MODEL 63 3.7 IMPLEMENTATION AND SOLUTION STRATEGY 64 4
COMBUSTION TESTS IN AN INDUSTRIAL CFB-BOILER 70 4.1 THE 252 MWTH
DUISBURG COMBUSTOR 70 4.2 MEASUREMENT TECHNIQUES 72 4.3 FUELS AND TEST
PROGRAM 76 5 MODEL VALIDATION 79 5.1 COAL COMBUSTION IN THE 252 MWTH
DUISBURG COMBUSTOR 79 5.1.1 GEOMETRY OF THE MODELED SYSTEM 82 5.1.2
REACTIONS AND KINETIC RATE EXPRESSIONS 87 5.1.3 GAS MIXING IN THE BOTTOM
ZONE 93 5.1.4 SECONDARY AIR JET FORMATION 95 5.1.5 THE SITUATION IN THE
LOWER SECTION OF THE COMBUSTION CHAMBERLOO 5.1.6 HORIZONTAL DISPERSION
102 5.1.7 PNEUMATIC FEEDING OF COAL 103 5.1.8 INJECTION OF OFF-GAS FROM
EXTERNAL HEAT EXCHANGERS 108 5.1.9 THREE-DIMENSIONAL GAS CONCENTRATION
FIELDS 110 5.2 CO-COMBUSTION OF COAL. SEWAGE SLUDGE AND WOOD 114 5.2.1
FUEL FEEDING 115 5.2.2 PRIMARY CHAR AND VOLATILES FORMATION 118
CURRICULUM VITAE 172 VIII CONTENTS 5.3 EVALUATION OF SIMULATION RESULTS
127 6 APPLICATION OF THE SIMULATION MODEL 130 6.1 INVESTIGATIONS ON
DIFFERENT FUEL FEEDING CONCEPTS 130 6.1.1 OPTION A: FUEL ADDITION TO
RECYCLE ASH FROM CYCLONES . . . . 130 6.1.2 OPTION B: EXTERNAL PYROLYSIS
OF FUEL 137 6.2 OPTIMIZED DESIGN FOR CO-COMBUSTION OF COAL AND BIOMASS
142 7 CONCLUSIONS 149 REFERENCES 153 A FLUID DYNAMIC MODEL OF THE BOTTOM
ZONE 161 B DEVOLATILIZATION MODEL 163 C IMPLEMENTATION SCHEINE OF
SIMULATION MODEL 165 D INPUT DATA TO SIMULATION MODEL 166
|
| any_adam_object | 1 |
| author | Wischnewski, Reiner 1976- |
| author_GND | (DE-588)137781970 |
| author_facet | Wischnewski, Reiner 1976- |
| author_role | aut |
| author_sort | Wischnewski, Reiner 1976- |
| author_variant | r w rw |
| building | Verbundindex |
| bvnumber | BV035689422 |
| ctrlnum | (OCoLC)551918735 (DE-599)DNB993341691 |
| dewey-full | 621.40250113 |
| dewey-hundreds | 600 - Technology (Applied sciences) |
| dewey-ones | 621 - Applied physics |
| dewey-raw | 621.40250113 |
| dewey-search | 621.40250113 |
| dewey-sort | 3621.40250113 |
| dewey-tens | 620 - Engineering and allied operations |
| discipline | Maschinenbau / Maschinenwesen Energietechnik |
| format | Thesis Book |
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| genre_facet | Hochschulschrift |
| id | DE-604.BV035689422 |
| illustrated | Illustrated |
| indexdate | 2024-07-09T21:43:28Z |
| institution | BVB |
| isbn | 9783832280642 |
| language | English |
| oai_aleph_id | oai:aleph.bib-bvb.de:BVB01-017743523 |
| oclc_num | 551918735 |
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| owner_facet | DE-634 |
| physical | XII, 171 S. Ill., graph. Darst. |
| publishDate | 2009 |
| publishDateSearch | 2009 |
| publishDateSort | 2009 |
| publisher | Shaker |
| record_format | marc |
| series2 | Berichte aus der Verfahrenstechnik |
| spelling | Wischnewski, Reiner 1976- Verfasser (DE-588)137781970 aut Simulation of large-scale circulating fluidized bed combustors Reiner Wischnewski Aachen Shaker 2009 XII, 171 S. Ill., graph. Darst. txt rdacontent n rdamedia nc rdacarrier Berichte aus der Verfahrenstechnik Zugl.: Hamburg-Harburg, Techn. Univ., Diss., 2008 Wirbelschichtverbrennung (DE-588)4349929-6 gnd rswk-swf Großfeuerungsanlage (DE-588)4158268-8 gnd rswk-swf Brennkammer (DE-588)4127347-3 gnd rswk-swf Zirkulierende Wirbelschicht (DE-588)4190966-5 gnd rswk-swf Prozesssimulation (DE-588)4176077-3 gnd rswk-swf (DE-588)4113937-9 Hochschulschrift gnd-content Großfeuerungsanlage (DE-588)4158268-8 s Brennkammer (DE-588)4127347-3 s Wirbelschichtverbrennung (DE-588)4349929-6 s Zirkulierende Wirbelschicht (DE-588)4190966-5 s Prozesssimulation (DE-588)4176077-3 s DE-604 DNB Datenaustausch application/pdf http://bvbr.bib-bvb.de:8991/F?func=service&doc_library=BVB01&local_base=BVB01&doc_number=017743523&sequence=000001&line_number=0001&func_code=DB_RECORDS&service_type=MEDIA Inhaltsverzeichnis |
| spellingShingle | Wischnewski, Reiner 1976- Simulation of large-scale circulating fluidized bed combustors Wirbelschichtverbrennung (DE-588)4349929-6 gnd Großfeuerungsanlage (DE-588)4158268-8 gnd Brennkammer (DE-588)4127347-3 gnd Zirkulierende Wirbelschicht (DE-588)4190966-5 gnd Prozesssimulation (DE-588)4176077-3 gnd |
| subject_GND | (DE-588)4349929-6 (DE-588)4158268-8 (DE-588)4127347-3 (DE-588)4190966-5 (DE-588)4176077-3 (DE-588)4113937-9 |
| title | Simulation of large-scale circulating fluidized bed combustors |
| title_auth | Simulation of large-scale circulating fluidized bed combustors |
| title_exact_search | Simulation of large-scale circulating fluidized bed combustors |
| title_full | Simulation of large-scale circulating fluidized bed combustors Reiner Wischnewski |
| title_fullStr | Simulation of large-scale circulating fluidized bed combustors Reiner Wischnewski |
| title_full_unstemmed | Simulation of large-scale circulating fluidized bed combustors Reiner Wischnewski |
| title_short | Simulation of large-scale circulating fluidized bed combustors |
| title_sort | simulation of large scale circulating fluidized bed combustors |
| topic | Wirbelschichtverbrennung (DE-588)4349929-6 gnd Großfeuerungsanlage (DE-588)4158268-8 gnd Brennkammer (DE-588)4127347-3 gnd Zirkulierende Wirbelschicht (DE-588)4190966-5 gnd Prozesssimulation (DE-588)4176077-3 gnd |
| topic_facet | Wirbelschichtverbrennung Großfeuerungsanlage Brennkammer Zirkulierende Wirbelschicht Prozesssimulation Hochschulschrift |
| url | http://bvbr.bib-bvb.de:8991/F?func=service&doc_library=BVB01&local_base=BVB01&doc_number=017743523&sequence=000001&line_number=0001&func_code=DB_RECORDS&service_type=MEDIA |
| work_keys_str_mv | AT wischnewskireiner simulationoflargescalecirculatingfluidizedbedcombustors |