WSEAS Transactions on Heat and Mass Transfer
Print ISSN: 1790-5044, E-ISSN: 2224-3461
Volume 11, 2016
Using on Results of External Heat Exchange Local Coefficients Study for Formation of Hydrodynamic Structure of Fluidized Bed Optimal for Burning Low Grades Solids Fuels
Authors: , , , , , ,
Abstract: The type of air entry distribution is essential in the formation of hydrodynamic structures of fluidized bed. The present study is aimed to form a hydrodynamic structure of fluidized bed optimal for burning low-grade solids fuels. In order to determine the uniformity of the fluidized bed in the bed heat exchange rate between the bed and a heat exchange member immersed therein was measured. At a first approximation, heat exchange with the member immersed into the bed imitates heat exchange between the fluidized bed and a fuel particle. It is allowed to determine that an optimal hydrodynamic structure of the bed can be formed by using a lattice supplying the major portion of air near the furnace wall. The above conclusion was confirmed by experiments using a real furnace with a fluidized bed.
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Keywords: Air distribution, anthracite culm, biomass, combustion, fluidized bed, heat transfer, straw pellets
Pages: 21-29
WSEAS Transactions on Heat and Mass Transfer, ISSN / E-ISSN: 1790-5044 / 2224-3461, Volume 11, 2016, Art. #4