High pressure heat transfer investigations for fluidized beds of large particles and immersed vertical tube bundles
作者： V.A. Borodulya , V.L. Ganzha , A.I. Podberezsky , S.N. Upadhyay , S.C. Saxena
DOI: 10.1016/S0017-9310(83)80076-3
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摘要: Abstract The overall heat transfer coefficient, hw, is measured for vertical tube bundles in fluidized beds of glass beads (ƌp = 1.25 and 3.10 mm) sands 0.794 1.225 at pressures 1.1, 2.6,4.1 8.1 MPa ambient temperature. Tube three different pitches (19.5, 29.3 39.0 are employed hw reported as a function velocity, G. It found that increases with pressure, to lesser extent pitch, an increase particle diameter. experimental data compared the predictions four theories two hw,max. appears theory Ganzha et al. most successful reproducing it recognized knowledge reliable bed voidage surface bulk crucial its applicability.
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