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Creator:: Goshayeshi, Ali
Abstract:: An experimental study is described in which time-average local heat transfer coefficients were obtained for arrays of horizontal tubes immersed in a hot fluidized bed. Spatial-averaged heat transfer coefficients, computed from local values, are also reported. Refractory particles with surface mean diameters of 2.14 mm and 3.23 mm were fluidized...
Resource Type:: Dissertation
Full Text:: fraction at minimum fluidization conditions 6 S Emissivity of solid particles w Emissivity of tube

Creator:: Lei, David Hsien-Yu
Abstract:: Experimental data are reported for the time-averaged local radiative and total heat transfer coefficients for both an array of horizontal tubes as well as a single horizontal tube immersed in a large-particle fluidized bed at elevated temperatures. Spatial-averaged heat transfer coefficients computed from the local values, using a simple trapezoidal...
Resource Type:: Dissertation
Full Text:: fluidization velocity m/s U0 Gas superficial velocity m/s Uop Optimum superficial velocity m/s Vd Detected

Creator:: Alavizadeh, Seyed Nasser
Abstract:: This study is primarily concerned with the measurement of the local radiative component of total heat transfer around a horizontal tube immersed in a large particle fluidized bed at elevated temperatures.Total heat transfer was also measured in order to assess the relative radiation contribution.The radiation measurement probe employs a silicon...
Resource Type:: Dissertation
Full Text:: heat flow detector Re Particle Reynolds Number, UoDp/vg S d Heat flow detector sensitivity T d

Creator:: Mahbod, Bahram
Abstract:: An analytical model of the radiative contribution to the total heat transfer between a large-particle (greater than 1 mm) gas-fluidized bed and an immersed horizontal tube is discussed. The model is applied to the case of a bubbling bed and the emulsion phase contribution is obtained from a detailed analysis...
Resource Type:: Dissertation
Full Text:: annular ring S Temperature-conductivity parameter Sp Half of distance between particle diameters T

ScholarsArchive@OSU