Unsteady-state Heat Transfer in Stationary Packed Beds Occurring after Chemical Reaction Takes Place
نویسندگان
چکیده
منابع مشابه
Modelling radiative heat transfer in packed beds
A comprehensive approach for modelling dependent radiative heat transfer in beds of large (geometric range) spherical particles is presented. Such a system of large spheres lies in the dependent range even for large porosities. We show that the dependent properties for a bed of opaque spheres can be obtained from their independent properties by scaling the optical thickness while leaving the al...
متن کاملHeat and Mass Transfer in Unsteady Rotating Fluid Flow with Binary Chemical Reaction and Activation Energy
In this study, the Spectral Relaxation Method (SRM) is used to solve the coupled highly nonlinear system of partial differential equations due to an unsteady flow over a stretching surface in an incompressible rotating viscous fluid in presence of binary chemical reaction and Arrhenius activation energy. The velocity, temperature and concentration distributions as well as the skin-friction, hea...
متن کاملEffect of solid conductivity on radiative heat transfer in packed beds
THE SOLUTION of the radiative heat transfer problem in porous media has received considerable attention for a number of years (e.g.. Vortmeyer [I], Tien and Drolen [2], ’ nd Kaviany and Singh [3]). The medium may be considere d as a continuum or as a discrete collection of particles, depending on whether the packing lies in the dependent or independent scattering/absorption range. Independent s...
متن کاملHeat Transfer in Packed Beds: Experimental Evaluation of One-phase Water Flow
Experimental heat transfer studies were carried out in 50.8 mm diameter packed beds of glass beads percolated by water and heated from the wall. The tube-to-particle diameter ratio (D/dp) ranged from 1.72 to 13.7 and the water flow rate from 1.1 to 9.9 l/min. Bed heights ranged from 100 mm to 700 mm. The radial temperature was measured above the bed surface by five aligned sheathed thermocouple...
متن کاملNumerical Simulation of Heat Transfer in Packed Beds by Two Population Thermal Lattice Boltzmann Method
The Lattice Boltzmann Method (LBM) was used for simulation of a gas flow and conjugate heat transfer in fixed packed beds with solid particles inside. D2Q9 version of the Factorized Central Moment (FCMLBM) is used for a gas flow computation. Heating transfer in the bed is described by second distribution function set and multiple relaxation time lattice Boltzmann method (DDF MRT LBM) is used. N...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Chemical engineering
سال: 1959
ISSN: 0375-9253
DOI: 10.1252/kakoronbunshu1953.23.374