LEADER 05539nam 2200697 450 001 9910132186403321 005 20200520144314.0 010 $a3-527-67320-2 010 $a3-527-67318-0 010 $a3-527-67321-0 035 $a(CKB)3710000000139315 035 $a(EBL)1718753 035 $a(OCoLC)881887715 035 $a(SSID)ssj0001305627 035 $a(PQKBManifestationID)11859669 035 $a(PQKBTitleCode)TC0001305627 035 $a(PQKBWorkID)11257392 035 $a(PQKB)11076935 035 $a(OCoLC)884588781 035 $a(MiAaPQ)EBC1718753 035 $a(Au-PeEL)EBL1718753 035 $a(CaPaEBR)ebr10887093 035 $a(CaONFJC)MIL622043 035 $a(EXLCZ)993710000000139315 100 $a20140710h20142014 uy 0 101 0 $aeng 135 $aur|n|---||||| 181 $ctxt 182 $cc 183 $acr 200 00$aGasification processes $emodeling and simulation /$fedited by Petr A. Nikrityuk and Bernd Meyer 210 1$aWeinheim, Germany :$cWiley-VCH,$d2014. 210 4$d©2014 215 $a1 online resource (362 p.) 300 $aDescription based upon print version of record. 311 $a3-527-33550-1 320 $aIncludes bibliographical references at the end of each chapters and index. 327 $aGasification Processes; Contents; Preface; List of Contributors; Acknowledgments; Recommended Reading; Coal Gasification: Basic Terminology; Chapter 1 Modeling of Gasifiers: Overview of Current Developments; 1.1 Numerical Modeling in Engineering; 1.1.1 The Role of Direct Numerical Simulation (DNS) in Particulate-Flow Modeling; Summary; 1.2 CFD-based Modeling of Entrained-Flow Gasifiers; 1.2.1 Mainstream Computational Submodels; 1.2.1.1 Particle Conversion; 1.2.1.2 Turbulence-Chemistry Interaction; 1.2.2 Review of CFD-related Works; 1.2.2.1 Noncommercial Software; 1.2.2.2 Commercial Software 327 $aSummary1.3 Benchmark Tests for CFD Modeling; 1.3.1 British Coal Utilization Research Association Reactor (BCURA); 1.3.2 Brigham Young University Reactor (BYU); 1.3.3 Pressurized Entrained-Flow Reactor (PEFR); References; Chapter 2 Gasification of Solids: Past, Present, and Future; 2.1 Introduction; 2.2 Historical Background; 2.3 Types of Gasification Reactors; 2.4 Trends in Gasifier Development; 2.5 Derived Challenges for Research; References; Chapter 3 Modeling of Moving Particles: Review of Basic Concepts and Models; 3.1 Introduction; 3.2 Soft-Sphere Model; 3.2.1 Numerical Implementation 327 $a3.2.1.1 Contact Forces3.2.1.2 Collision Parameters; 3.2.1.3 Contact Detection; 3.2.1.4 Time Integration; 3.2.2 Validation Cases; 3.2.2.1 Free-Falling Particle; 3.2.2.2 Analytic Solution for the Free-falling Particle; 3.2.2.3 Slipping Sphere on a Rough Surface; 3.2.3 Illustrative Examples; 3.2.3.1 Breaking Dam Problem; 3.2.3.2 Rotating Drum; 3.2.3.3 Generation of Fixed Beds; 3.3 Hard-Sphere Model; 3.3.1 Governing Equations; 3.3.2 Collision Treatment in Dense Particulate Systems; 3.3.3 2D Formulation of Hard-Sphere Collisions; 3.3.4 Illustration of Hard-Sphere Models; 3.3.5 Conclusions 327 $aNomenclatureReferences; Chapter 4 CD and Nu Closure Relations for Spherical and NonSpherical Particles; 4.1 Literature Review; 4.2 Model Description; 4.2.1 Numerical Scheme and Discretization; 4.3 Code and Software Validation; 4.4 Porous Particles; 4.4.1 Geometry Assumptions; 4.4.2 Heat and Fluid Flow Past Porous Particles; 4.4.3 Drag and Nusselt Numbers for Porous Particles; 4.5 Nonspherical Particles; 4.5.1 Heat and Fluid Flow of Particles Oriented in the Flow Direction; 4.5.2 Flow Characteristics of Particles at Different Angles of Attack 327 $a4.5.3 Influence of Particle Orientation on Drag Forces and Heat Transfer4.5.3.1 Drag Forces; 4.5.3.2 Heat Transfer; 4.5.3.3 Drag Forces and Nusselt Relations for Two Rotations; 4.5.4 Discussion; 4.5.5 Conclusion; References; Chapter 5 Single Particle Heating and Drying; 5.1 Nonporous Spherical Particle Heating in a Stream of Hot Air; 5.1.1 State of the Art; 5.1.2 Problem and Model Formulation; 5.1.2.1 Linear Model; 5.1.3 Illustration of Results and Subgrid Model; 5.1.4 Semiempirical Two-Temperature Subgrid Model; 5.2 Heating of a Porous Particle; 5.2.1 Problem and Model Formulation 327 $a5.2.2 Porosity 330 $aBridging the gap between the well-known technological description of gasification and the underlying theoretical understanding, this book covers the latest numerical and semi-empirical models describing interphase phenomena in high-temperature conversion processes. Consequently, it focuses on the description of gas-particle reaction systems by state-of-the-art computational models in an integrated, unified form. Special attention is paid to understanding and modeling the interaction between individual coal particles and a surrounding hot gas, including heterogeneous and homogeneous chemical re 606 $aCoal gasification$xSocial aspects 606 $aCoal gasification$xEnvironmental aspects 606 $aGas industry$xSocial aspects 608 $aElectronic books. 615 0$aCoal gasification$xSocial aspects. 615 0$aCoal gasification$xEnvironmental aspects. 615 0$aGas industry$xSocial aspects. 676 $a665.772 702 $aNikrityuk$b Petr A. 702 $aMeyer$b Bernd 801 0$bMiAaPQ 801 1$bMiAaPQ 801 2$bMiAaPQ 906 $aBOOK 912 $a9910132186403321 996 $aGasification processes$91941418 997 $aUNINA LEADER 01355nam 2200361Ia 450 001 996395230403316 005 20210104171227.0 035 $a(CKB)3810000000015522 035 $a(EEBO)2248545212 035 $a(OCoLC)ocn297421198e 035 $a(OCoLC)297421198 035 $a(EXLCZ)993810000000015522 100 $a20090108d1663 uy 0 101 0 $alat 135 $aurbn||||a|bb| 200 10$aRomae ruina finalis, anno Dom 1666. 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