Basu Circulating Fluidized Bed Boilers

Design and Operations
1. Auflage 2013
ISBN: 978-1-4832-9230-4
Verlag: Elsevier Science & Techn.
Format: PDF
Kopierschutz: 1 - PDF Watermark

E-Book, Englisch, 360 Seiten, Web PDF

This book provides practicing engineers and students with insight into the design and operation of circulating fluidized bed (CFB) boilers. Through a combination of theoretical concepts and practical experience, this book gives the reader a basic understanding of the many aspects of this subject.Important environmental considerations, including solid waste disposal and predicted emissions, are addressed individually in separate chapters. This book places an emphasis on combustion, hydrodynamics, heat transfer, and material issues, and illustrates these concepts with numerous examples of present applications and past experience. This book also examines the relevance of design and feed-stock parameters to the operation of a CFB boiler; designs of mechanical components, including cyclones, air distributor grids, and solid recycle systems; and special problems CVB boilers present with construction materials.

Dr. Prabir Basu, founding President of Greenfield Research Incorporated, a private research and development company in Canada that specializes in gasification and torrefaction, is an active researcher and designer of biomass energy conversion systems. Dr. Basu holds a position of Professor in Mechanical Engineering Department and is Head of Circulating Fluidized Bed Laboratory at Dalhousie University, Halifax His current research interests include frontier areas, chemical looping gasification, torrefaction, biomass cofiring amongst others.Professor Basu also founded of the prestigious triennial International Conference series on Circulating Fluidized Beds, and a private R&D company, Fluidized Bed Systems Limited that specializes on design, training and investigative services on fluidized bed boilers. Professor Basu has been working in the field of energy conversion and the environment for more than 30 years. Prior to joining the engineering faculty at Dalhousie University (formerly known as the Technical University of Nova Scotia), he worked with both a government research laboratory and a boiler manufacturing company.Dr. Basu's passion for the transformation of research results into industrial practice is well known, as is his ongoing commitment to spreading advanced knowledge around the world. He has authored more than 200 research papers and seven monographs in emerging areas of energy and environment, some of which have been translated into Chinese and Korean. He is well known internationally for providing expert advices on circulating fluidized bed boilers and conducting training courses to industries and universities across the globe.

Autoren/Hrsg.

Basu, Prabir

Inhaltsverzeichnis

1;Front Cover;1
2;Circulating Fluidized Bed Boilers: Design and Operations;4
3;Copyright Page;5
4;Table of Contents;8
5;Dedication;6
6;Preface;10
7;CHAPTER 1. INTRODUCTION;12
7.1;1-1 WHAT IS A CIRCULATING FLUIDIZED BED BOILER ?;15
7.2;1-2 FEATURES OF A CIRCULATING FLUIDIZED BED BOILER;17
7.3;1-3 COMPARISON OF TECHNOLOGIES;23
7.4;REFERENCES;27
8;CHAPTER 2. HYDRODYNAMICS;30
8.1;2-1 REGIMES OF FLUIDIZATION;31
8.2;EXAMPLE;40
8.3;SOLUTION;40
8.4;2-2 FAST FLUIDIZED BED;42
8.5;2-3 STRUCTURE OF FAST BEDS;50
8.6;2-4 GAS-SOLID MIXING;59
8.7;NOMENCLATURE;60
8.8;REFERENCES;62
9;CHAPTER 3. HEAT TRANSFER;66
9.1;3-1 GAS-TO-PARTICLE HEAT TRANSFER;68
9.2;3-2 BED-TO-WALL HEAT TRANSFER;73
9.3;3-3 EXTERNAL FLUID BED HEAT EXCHANGER;90
9.4;3-4 HEAT TRANSFER TO TUBES IMMERSED IN FAST BEDS;93
9.5;3-5 HEAT-TRANSFER AND PART-LOAD OPERATIONS;94
9.6;NOMENCLATURE;99
9.7;REFERENCES;102
10;CHAPTER 4. COMBUSTION;106
10.1;4-1 STAGES OF COAL COMBUSTION;106
10.2;4 2 COMBUSTION PROCESS IN CFB BOILERS;123
10.3;4-3 DESIGN AND PERFORMANCE MODELING OF CFB COMBUSTORS COMBUSTORS;130
10.4;NOMENCLATURE;133
10.5;REFERENCES;135
11;CHAPTER 5. EMISSIONS;138
11.1;5-1 AIR POLLUTION;139
11.2;5-2 SULFUR DIOXIDE EMISSION;143
11.3;5-3 NITROGEN OXIDE EMISSION;163
11.4;5-4 NITROUS OXIDE EMISSION;166
11.5;5-5 CARBON MONOXIDE EMISSION;168
11.6;NOMENCLATURE;168
11.7;REFERENCES;170
12;CHAPTER 6. DESIGN CONSIDERATIONS;174
12.1;6-1 STOICHIOMETRIC CALCULATIONS;175
12.2;6-2 HEAT AND MASS BALANCE;175
12.3;6-3 FURNACE DESIGN;185
12.4;6-4 DESIGN OF HEATING SURFACES;195
12.5;6-5 EXAMPLE OF THERMAL DESIGN OF A CFB BOILER;203
12.6;NOMENCLATURE;207
12.7;REFERENCES;209
13;CHAPTER 7. GAS-SOLID SEPARATORS;212
13.1;7-1 CYCLONES;214
13.2;7-2 INERTIAL SEPARATORS;228
13.3;NOMENCLATURE;237
13.4;REFERENCES;239
14;CHAPTER 8. DESIGN OF CFB COMPONENTS;240
14.1;8-1 TYPES OF NONMECHANICAL VALVES;240
14.2;8-2 DESIGN OF L-VALVE;243
14.3;8-3 DESIGN OF LOOP SEAL;247
14.4;8-4 DISTRIBUTOR PLATES;251
14.5;NOMENCLATURE;258
14.6;REFERENCES;259
15;CHAPTER 9. MANAGEMENT OF SOLID RESIDUES;262
15.1;9-1 NATURE OF SOLID WASTES;262
15.2;9-2 UTILIZATION OF WASTES;269
15.3;9-3 DISPOSAL OF WASTES;274
15.4;NOMENCLATURE;281
15.5;REFERENCES;282
16;CHAPTER 10. MATERIAL ISSUES;284
16.1;10-1 MATERIAL SELECTION CRITERIA;284
16.2;10-2 COMMONLY USED MATERIALS;291
16.3;10-3 DESIGN INNOVATIONS;295
16.4;REFERENCES;299
17;APPENDIX I: CHARACTERISTICS OF SOLID PARTICLES;302
17.1;1-1 SOLID PARTICLES;302
17.2;1-2 PACKING CHARACTERISTICS;306
17.3;1-3 PARTICLE CLASSIFICATION;306
17.4;1-4 TERMINAL VELOCITY OF A PARTICLE;308
17.5;1-5 FLOW-THROUGH PACKED BEDS;312
17.6;NOMENCLATURE;312
17.7;REFERENCES;313
18;APPENDIX II: STOICHIOMETRIC CALCULATIONS;314
18.1;II-1 CHEMICAL REACTIONS;314
18.2;II-2 AIR REQUIRED;315
18.3;II-3 SORBENT REQUIREMENT;316
18.4;II-4 SOLID WASTE PRODUCED;316
18.5;II-5 GASEOUS WASTE PRODUCTS;317
18.6;II-6 HEATING VALUE OF FUELS;320
18.7;NOMENCLATURE;323
19;APPENDIX III: SIMPLIFIED MODEL FOR SULFUR CAPTURE;324
19.1;NOMENCLATURE;326
20;APPENDIX IV: TABLES OF DESIGN DATA;328
21;INDEX;356