Download or read book Heat Transfer Between Air and Solid Particles in Sixteen Inch Diameter Fluidized Beds written by Jacob Christian Fritz and published by . This book was released on 1955 with total page 402 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Heat Transfer in Fluidized Beds written by O. Molerus and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 205 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides a much needed and thorough treatment of the heat transfer in agitated disperse systems. It gives predictive equations for the heat transfer in moving beds, bubbling and circulating fluidized beds, pneumatic transport in vertical tubes and particulate fluidized beds. Owing to the many different modes of activation of heat transfer, the basic approach of the book is to provide experimental evidence of the relevance of particle motion to the proximity of solid surfaces for the heat transfer observed. This has been achieved by the evaluation of experiments obtained with a newly developed pulsed light method using luminous particles. Heat Transfer in Fluidized Beds will be of great use to students and researchers involved in heat transfer and thermodynamics.
Download or read book Heat Transfer in Fluidized Beds written by Lorenza C. L. Feng and published by . This book was released on 1966 with total page 390 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Fluid bed Heat Transfer written by J. S. M. Botterill and published by . This book was released on 1975 with total page 314 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Handbook of Heat and Mass Transfer Heat transfer operations written by and published by . This book was released on 1986 with total page 1478 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Fluidization Engineering written by D. Kunii and published by Elsevier. This book was released on 2013-10-22 with total page 520 pages. Available in PDF, EPUB and Kindle. Book excerpt: Fluidization Engineering, Second Edition, expands on its original scope to encompass these new areas and introduces reactor models specifically for these contacting regimes. Completely revised and updated, it is essentially a new book. Its aim is to distill from the thousands of studies those particular developments that are pertinent for the engineer concerned with predictive methods, for the designer, and for the user and potential user of fluidized beds. - Covers the recent advances in the field of fluidization. - Presents the studies of developments necessary to the engineers, designers, and users of fluidized beds.
Download or read book Local and Average Heat Transfer Coefficients in a Fluidized Bad Heat Exchanger written by Alphonse Roman Noë and published by . This book was released on 1964 with total page 176 pages. Available in PDF, EPUB and Kindle. Book excerpt: Local and average heat transfer coefficients for heat transfer from internal tubes to a fluidized bed were investigated. A fluidized bed heat exchanger was compared to a baffled and an unbaffled exchanger in terms of power and heat transfer surface area requirements. The fluidized bed heat exchanger consisted of a 44 inch long, 5.75 inch inside diameter shell with 19, 3/4 inch diameter tubes arranged in a 1-1/16 inch triangular pitch. Fluidized solids were two narrow sized groups of Scotchlite glass beads having .0057 inch and .0188 inch average diameters. The fluidizing medium was air and there was no tube side fluid. Variables studied included particle size and concentration, superficial gas velocity, and different locations of the heat transfer surface. The local heat transfer coefficients were measured by means of a movable temperature probe in contact with the inner wall of a thin-walled tube through which a constant heat flux was maintained. Values of local coefficients ranging from 2 to 101 Btu/hr. ft2.°F and average coefficients ranging from 6 to 35 Btu/hr.ft2.°F were obtained. This represents a maximum increase of 50-fold for the local coefficients and 25-fold for the average coefficients over those for air alone. The fluidized bed consisted of areas of dense and sparse solids concentration. In the dense section of the bed, the local coefficients were essentially constant and higher values of the coefficients were obtained at lower flow rates. The opposite was true in the sparse section of the bed and variation of heat transfer coefficient with flow rate was similar to that for single phase fluids. Heat transfer surface location did not affect the average coefficients appreciably, however the local coefficients were affected slightly, the center tube having somewhat lower coefficients. The average heat transfer coefficients were found to increase as a power function of the solids concentration. The ratio of the heat transfer capacity of the fluidized bed exchanger to that of the unbaffled and baffled exchangers was considerably greater than unity, indicating its advantage as far as space requirements are concerned. An overall advantage of reduced heat requirement for the fluidized bed exchanger was found in the region of static bed heights transfer area and power over the baffled exchanger below five inches.
Download or read book Hydrodynamics and Heat Transfer in Fluidized Beds written by Sergeĭ Stepanovich Zabrodskiĭ and published by . This book was released on 1966 with total page 426 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book An Investigation Into the Fluidization and Heat Transfer of Low Density Particles in a Fluidized Bed with Applications written by James Michael Modlin and published by . This book was released on 1985 with total page 362 pages. Available in PDF, EPUB and Kindle. Book excerpt: The lack of reliable data on the fluidization and heat transfer characteristics of low density particles in a fluidized bed has prompted an experimental and analytical investigation into this subject. Seven groups of particles ranging in diameter from 0.25 mm to 2.0 mm and density from 2.5 to 32 pcf have been successfully fluidized and shown to be generally well predicted by classical fluidization and fluidized bed heat transfer theory. Two other groups of particles, also in this approximate range of particle diameter and density, are, however, unable to be fluidized due to significant inter-particle and static electric attractions. Using the experimental data and results as a basis of analysis, two application of low density particle fluidization in a building efficient energy management program are discussed. A fluidized bed can be incorporated into the wall cavity of a building for use as either a collector of solar energy or as a heat exchange medium in a building space heating/cooling program. As a solar collector, it is shown that the low density particle fluidized bed would thermally perform between comparable conventional liquid and air-cooled flat plate solar collectors. It would require less water pumping power and plumbing than the liquid collector and less air pumping power than the air collector. Keywords: Heat exchangers; solar collector. (Theses).
Download or read book Surface renewal Models for Heat Transfer Between Walls and Fluidized Beds written by R. D. Patel and published by . This book was released on 1967 with total page 112 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Heat Transfer in Fluidized Beds Effectiveness of Gas solid Contact written by Welcome Willard Wamsley and published by . This book was released on 1953 with total page 180 pages. Available in PDF, EPUB and Kindle. Book excerpt: Gas-solid heat transfer in fluidized beds was investigated by the transient heating of cold particles in a hot gas stream. Transfer coefficients obtained from the rate of recovery of the gas temperature during the unsteady state heating of the particles are a measure of the overall performance of the fluidized bed. The results are interpreted in terms of the gas flow characteristics observed. It is shown that gas-fluidized beds cannot be considered equivalent to a uniformly expanded fixed bed, but that a portion of the entry gas must be regarded as effectively by-passing the solid material present. Using air and carbon dioxide as the fluidizing gases and glass spheres, resin spheres, and crushed alumina as solids, the results obtained range from 0.07 BTU/hr-sq,ft, - °F. for 100/115 mesh particles to 0.9 BTU/hr-sq.ft. - °F. for 16/20 mesh particles but show no consistent influence of mass velocity. These coefficients are less than those previously reported for fixed beds, isolated particles, or fluidized beds. They are in agreement with reinterpreted results for the steady-state evaporation of water from a fluidized solid.
Download or read book Journal of Scientific Industrial Research written by and published by . This book was released on 1978 with total page 930 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Heat Transfer in Fluidized Beds written by O. Molerus and published by Springer. This book was released on 2011-09-01 with total page 187 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Chemical Reaction Engineering written by L.K. Doraiswamy and published by CRC Press. This book was released on 2013-07-15 with total page 578 pages. Available in PDF, EPUB and Kindle. Book excerpt: Filling a longstanding gap for graduate courses in the field, Chemical Reaction Engineering: Beyond the Fundamentals covers basic concepts as well as complexities of chemical reaction engineering, including novel techniques for process intensification. The book is divided into three parts: Fundamentals Revisited, Building on Fundamentals, and Beyon
Download or read book Reaction Kinetics for Chemical Engineers written by Stanley M. Walas and published by Butterworth-Heinemann. This book was released on 2013-10-22 with total page 353 pages. Available in PDF, EPUB and Kindle. Book excerpt: Reaction Kinetics for Chemical Engineers focuses on chemical kinetics, including homogeneous reactions, nonisothermal systems, flow reactors, heterogeneous processes, granular beds, catalysis, and scale-up methods. The publication first takes a look at fundamentals and homogeneous isothermal reactions. Topics include simple reactions at constant volume or pressure, material balance in complex reactions, homogeneous catalysis, effect of temperature, energy of activation, law of mass action, and classification of reactions. The book also elaborates on adiabatic and programmed reactions, continuous stirred reactors, and homogeneous flow reactions. Topics include nonisothermal flow reactions, semiflow processes, tubular-flow reactors, material balance in flow problems, types of flow processes, rate of heat input, constant heat-transfer coefficient, and nonisothermal conditions. The text ponders on uncatalyzed heterogeneous reactions, fluid-phase reactions catalyzed by solids, and fixed and fluidized beds of particles. The transfer processes in granular masses, fluidization, heat and mass transfer, adsorption rates and equilibria, diffusion and combined mechanisms, diffusive mass transfer, and mass-transfer coefficients in chemical reactions are discussed. The publication is a dependable source of data for chemical engineers and readers wanting to explore chemical kinetics.
Download or read book Energy Research Abstracts written by and published by . This book was released on 1992 with total page 404 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Heat Transfer Between the Particles and the Gas Stream in a Fluidized Bed written by William Jay Berk and published by . This book was released on 1950 with total page 94 pages. Available in PDF, EPUB and Kindle. Book excerpt:
