HEAT TRANSFER CHARACTERISTICS OF THREE PHASE FLUIDIZED BEDS.

Heat transfer chracteristics of two(liquid-gas, liquid-solid)and three(liquid-gas-solid)phase fluidized beds have been studied in a 15.2cm-ID column fitted with an acially mounted cylindrical heater. Effects of gas velocity (0-12cm.s), liquid velocity (0-16 cm/s)and liquid viscosity (0.001-0.039 Pa.s) on heat transfer coefficient were determined. The heat transfer coefficient increased with fluid velocities and particle size and it decreased with liquid viscosity in two and three phase fluidized beds. The bed porosity at which the maximum heat transfer occurred decreased with particle size but increased with liquid viscosity. The coefficient were correlatedd in terms of experimental variables. Mdified Nusselt number from the present and previous sudies has been correlated with modified Prandtl and Reynolds numbers.
Publisher
Taylor & Francis Inc
Issue Date
1983-11
Language
ENG
Citation

CHEMICAL ENGINEERING COMMUNICATIONS, v.34, pp.1 - 13

ISSN
0098-6445
URI
http://hdl.handle.net/10203/4374
Appears in Collection
CBE-Journal Papers(저널논문)
  • Hit : 491
  • Download : 1
  • Cited 0 times in thomson ci

qr_code

  • mendeley

    citeulike


rss_1.0 rss_2.0 atom_1.0