Solid Circulation in a Spouted Bed with a Draft Tube
スポンサーリンク
概要
- 論文の詳細を見る
Solid circulation behavior in a cylindrical spouted bed of 0.205 m diameter with a draft tube is studied based on the power spectral analyses of the time series data of pressure fluctuation and optical signals measured by optical fiber probes in the draft tube and the entrainment region. The effects of solid particle size, bed mass and the length of the entrainment region on solid circulation are examined. In the low gas velocity region, solid particles move from the annulus into the gas jet to form clusters and are carried upward in the draft tube with a frequency of 7–10 Hz. In the high gas velocity region, solids flow is in a stable pneumatic convey state. As the particle size increases and the bed mass decreases, the frequency of clusters is reduced by the promotion of gas bypassing, leading to a decrease in solid circulation rates. In the pneumatic transport regime, the larger particle system exhibits a higher solid circulation rate. The extent of the length of the entrainment region decreases the frequency of clusters but increases the solid circulation rate by virtue of increasing the size of clusters.
- 社団法人 化学工学会の論文
著者
-
Tsutsumi Atsushi
Department Of Chemical Engineering University Of Tokyo
-
Yoshida Kunio
Department Of Chemical Engineering University Of Tokyo
-
JI Hongshen
Department of Chemical System Engineering, The University of Tokyo
-
Ji Hongshen
Department Of Chemical System Engineering The University Of Tokyo
関連論文
- Chronic Treatment with NGF Induces Spontaneous Fluctuations of Intracellular Ca2+ in Icilin-Sensitive Dorsal Root Ganglion Neurons of the Rat
- Laser original: Power analysis of a cw solar-pumped laser for magnesium energy cycle (「太陽光励起レーザーとその応用」特集号)
- Removal of Diazonaphthoquinone/Novolak Resist Using UV Laser (266nm)
- Laser-Induced Bulk Damage of Various Types of Silica Glasses at 266nm
- 共蒸着保護層を用いたカラープラズマディスプレイの発光特性の改善とエージング特性
- Improvement of Luminous Efficiency in Barrier-Electrode Color ac Plasma Displays by Using a Double Protecting Layer
- Effect of RF Plasma Etching on Surface Damage in CsLiB_6O_ Crystal
- Laser-Induced Bulk Damage of Various Types of Silica Glasses at 532 and 355nm
- Ion Etching of Fused Silica Glasses for High-Power Lasers
- Laser-Induced Bulk Damage of Various Types of Silica Glasses with Fundamental and Higher Harmonics of Nd : YAG Laser
- 90°Phase-Matching Properties of YCa_4O(BO_3)_3 and Gd_x Y_Ca_4O(BO_3)_3
- Observation of Intrinsic Josephson Junction Propertieson (Bi,Pb)SrCaCu0 Thin Films
- Macroscopic Flow Structure of Solid Particles in Circulating Liquid-Solid Fluidized Bed Riser
- Energy-Recuperative Coal-Integrated Gasification/Gas Turbine Power Generation System
- Ion Temperature of Laser-Produced Plasma
- Properties of Plasma Produced by High Power Laser
- Generation and Amplification of Laser Pulse with a Variable Pulsewidth Using PTM Method
- Microstructure Evolution of Iron Carbide during Reaction with Steam at Elevated Temperatures
- Materialographic Investigation on the Mechanism of Hydrogen Production through the Reaction between Iron Carbide and Steam at a Temperature of 673K
- Reduction of Iron Oxides by Nano-Sized Graphite Particles Observed in Pre-Oxidized Iron Carbide at Temperatures around 873K
- Energy-Recuperative Biomass Integrated Gasification Power Generation System
- Fundamental Characteristics of MgO Film and Their Influence on the Operation of Plasma Displays (Special Issue on Electronic Displays)
- GAS-LIQUID MASS TRANSFER IN A THREE-PHASE REACTOR
- Nonlinear Modeling of Chaotic Dynamics in a Circulating Fluidized Bed by an Artificial Neural Network
- Coproduction of Iron and Hydrogen from Iron Carbide
- Solid Circulation in a Spouted Bed with a Draft Tube
- Electrical Conductivity of Polymer Composites Filled with Metal
- Improvement in Laser-Induced Damage Threshold of Antireflection Coatings for High-Power UV Lasers by Removing Subsurface of Large lenses
- Electrical Conductivity of Polymer Composites Filled with Carbon Black
- Enhancement of Surface-Damage Resistance by Removing Subsurface Damage in Fused Silica and Its Dependence on Wavelength
- Characterization of Two-Photon Absorption Related to the Enhanced Bulk Damage Resistance in CsLiB6O10 Crystal
- Effect of Crystal Defects on Laser-Induced-Damage Tolerance of Organic Crystal, 4-Dimethylamino-N-methyl-4-stilbazolium Tosylate
- Compact Coating Machine for Large Laser Optics with a New Thickness-Distribution Equalization Method
- Layer Thickness Error Dependence of the Laser-Induced Damage Threshold of Multilayer Mirrors for High-Power Lasers
- DETERMINISTIC CHAOS ANALYSIS OF PARTICLE DYNAMICS IN THREE-PHASE SYSTEMS
- TEMPERATURE-EFFECTS ON THE CHARACTERISTICS OF FLUIDIZED BEDS
- Stochastic analysis of bubble and particle motions in a 2-D three-phase reactor.
- 90° Phase-Matching Properties of YCa4O(BO3)3 and GdxY1-xCa4O(BO3)3
- Chemical reaction cycles for the recovery of low-level thermal energy.