Download or read book Gas fluidized Bed Vibration an Experimental Study written by James Francis Welch and published by . This book was released on 1973 with total page 284 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book An Experimental Study of a Vertical Tube Gas fluidized Bed written by Kevin Matthew Mandich and published by . This book was released on 2010 with total page 212 pages. Available in PDF, EPUB and Kindle. Book excerpt: The goal of this experimental work was to investigate methods of measuring important fluidization properties in a vertical, cold-flow, gas-fluidized bed to gain an understanding of the fluidization characteristics of the bed materials used. Quantities such as pressure drop across the bed, mean bed height, and minimum fluidization velocity were determined using non-invasive methods and were compared to fundamental fluidized bed theories to verify proper performance of the experiment. Granular temperature near the wall, a quantity of great interest in this system, was also determined using a non-invasive technique. An Acoustic Shot Noise probe, developed by Cody et al. (1996), was used to correlate the vibrational energy at the fluidized bed wall to the average particle velocity normal to this surface. By determining the mechanical transfer function of the confining tube, it was possible to obtain an estimate for the granular temperature near the wall by performing a spectral analysis of the wall acceleration time signal. Experimentally-determined values of pressure drop, mean bed height, and minimum fluidization velocity agreed well with the values predicted from theory. Average granular temperature values also agreed well with those obtained through similar means (Cody et al., 1996). The mean bed expansion ratio and average granular temperature results were compared with those obtained from a Computational Fluid Dynamics simulation (Didwania et al., to appear). Good agreement was observed between experiment and simulation, and special attention was given to the effects of changing key parameters in the model.
Download or read book Inelastic Gas written by Klebert Bezerra Feitosa and published by . This book was released on 2004 with total page 294 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Experimental Studies on High gravity Rotating Fluidized Beds written by G. C. Lindauer and published by . This book was released on 1966 with total page 44 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Development and Impact of Instabilities in Gas Fluidized Beds written by Jayati Johri and published by . This book was released on 2002 with total page 382 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Masters Theses in the Pure and Applied Sciences written by Wade H. Shafer and published by Springer Science & Business Media. This book was released on 2013-03-09 with total page 300 pages. Available in PDF, EPUB and Kindle. Book excerpt: Masters Theses in the Pure and Applied Sciences was first conceived, published, and disseminated by TPRC at Purdue University in 1957, starting its coverage of theses with the academic year 1955. Beginning with Volume 13, the printing and dissemina tion phases of the activity was transferred to University Microfilms/Xerox of Ann Arbor, Michigan, with the thought that such an arrangement would be more beneficial to the academic and general scientific and technical community. After five years of this joint undertaking we have concluded that it will be in the interest of all concerned if the printing and distribution of the volume were handled by a well-known publishing house to assure improved service and better communication. Hence, effective with this Volume 18, Masters Theses in the Pure and Applied Sciences will be disseminated on a worldwide basis by Plenum Publishing Corporation of New York. All back issues can also be ordered from Plenum. As we embark on this new partnership with Plenum, we also initiate a new venture in that this important annual reference work now covers Canadian universities as well as those in the United States. We are sure that this broader base will greatly enhance the value of these volumes.
Download or read book Modeling and Flowsheet Simulation of Vibrated Fluidized Bed Dryers Band 18 written by Sören Ernst Lehmann and published by Cuvillier Verlag. This book was released on 2021-12-07 with total page 182 pages. Available in PDF, EPUB and Kindle. Book excerpt: Fluidized bed dryers are the prime choice when it comes to drying of heat sensitive products, commonly processed in the pharmaceutical and food industry. As many products in these industries are fine and cohesive, mechanical vibration of the dryer is used to enable or improve fluidization. Thus, the goal of this thesis is the development of a fluidized bed drying model that accounts for the influence of mechanical vibration of the dryer, as well as its implementation in an open-source flowsheet simulation framework. Continuously operated fluidized bed dryers under steady-state conditions are the focus of this thesis. The aim during model development and implementation is the broadest possible application range of the model. A custom-built vibrated fluidized bed dryer is designed and constructed for comprehensive investigations of fluidized bed hydrodynamics and drying kinetics. Based on experimental investigations, a semi-empirical model for hydrodynamics of fine and cohesive powders is developed. The new model is combined with established models to allow for the flowsheet simulation of fluidized bed dryers for particles of all Geldart groups. Additionally, the influence of vibration is accounted for. Comprehensive validation experiments are performed for particles of different Geldart groups, different dryer geometries and a variety of process parameters, including mechanical vibration. Comparison of model predictions with experimental data attributes high accuracy of predicted particle and gas properties. Furthermore, sensitivity analyses are conducted to identify potential weaknesses in underlying model assumptions. Hereby, the validity of underlying assumptions is confirmed and potential optimization parameters for different applications are identified. The proposed model is unprecedented in terms of range of process parameters, variety of particle properties and dryer geometries, tested and found valid for.
Download or read book Applied Mechanics Reviews written by and published by . This book was released on 1969 with total page 1090 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Granular Gases written by Thorsten Pöschel and published by Springer. This book was released on 2008-01-11 with total page 454 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Granular Gases" are diluted many-particle systems in which the mean free path of the particles is much larger than the typical particle size, and where particle collisions occur dissipatively. The dissipation of kinetic energy can lead to effects such as the formation of clusters, anomalous diffusion and characteristic shock waves to name but a few. The book is organized as follows: Part I comprises the rigorous theoretical results for the dilute limit. The detailed properties of binary collisions are described in Part II. Part III contains experimental investigations of granular gases. Large-scale behaviour as found in astrophysical systems is discussed in Part IV. Part V, finally, deals with possible generalizations for dense granular systems.
Download or read book An Experimental Study of Hydrodynamics Inside Fluidized Bed Bubbles written by Mridul Gautam and published by . This book was released on 1989 with total page 512 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Fluidization of Fine Powders written by José Manuel Valverde Millán and published by Springer Science & Business Media. This book was released on 2012-10-12 with total page 144 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book covers the rich phenomenology exhibited by fine powders when they are fluidized by a gas flow. Fine powder cohesiveness leads to poor flowability, clumping, difficulty in fluidizing, irregular avalanching behavior, etc. Despite all the inconveniences, fine powder processes pervade the chemical, pharmaceutical, agricultural and mining industries among others. The author in this book analyzes the mechanism by which interparticle adhesive forces are reduced by means of surface additives. Different techniques have been developed in the last years to assist fluidization by helping the gas flow to mobilize and break cohesive aggregates, which help to homogenize fluidization. As reviewed in this book, the use of these techniques may have a relevant impact on novel processes based on fluidized beds of fine powder and with relevant applications on leading edge technologies such as Atomic Layer Deposition on nanoparticles and CO2 capture by gas-fluidized beds of adsorbent powders. The study of fluidized beds has a marked interdisciplinary character. This book is thus intended for academic and industrial researchers in applied physics, mechanical, chemical, and environmental engineering, who are interested in the special characteristics of fine powders.
Download or read book Nuclear Science Abstracts written by and published by . This book was released on 1974-07 with total page 978 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Fluidised Particles written by J. F. Davidson and published by Cambridge University Press. This book was released on 1963-01-02 with total page 172 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents the theoretical background to the behaviour of fluidised beds in a form suitable for teachers and students of chemical engineering and for designers of process plant. It is important because it approaches the subject from first principles of fluid mechanics to problems of a truly chemical engineering nature. At all stages the theoretical treatment is directly related to experiment. Such a synthesis, much of which is based on recent research work by the authors and others, should also help to guide designers in the scaling-up of experimental work on small apparatus to pilot and production plant.
Download or read book Coupled CFD DEM Modeling written by Hamid Reza Norouzi and published by John Wiley & Sons. This book was released on 2016-09-14 with total page 432 pages. Available in PDF, EPUB and Kindle. Book excerpt: Discusses the CFD-DEM method of modeling which combines both the Discrete Element Method and Computational Fluid Dynamics to simulate fluid-particle interactions. Deals with both theoretical and practical concepts of CFD-DEM, its numerical implementation accompanied by a hands-on numerical code in FORTRAN Gives examples of industrial applications
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1989 with total page 1134 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Fossil Energy Update written by and published by . This book was released on 1977 with total page 748 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Keywords Index to U S Government Technical Reports written by United States. Department of Commerce. Office of Technical Services and published by . This book was released on 1962 with total page 990 pages. Available in PDF, EPUB and Kindle. Book excerpt:
