Preliminary study of grid zone heat transfer in a gas-solid fluidized bed

Conference · Tue Jan 01 04:00:00 EST 1985

OSTI ID:6224342

Ho, T C; Wang, R C; Hopper, J R

Simple hot water circulation technique was used to study semi-quantitatively the characteristics of grid zone heat transfer to horizontal tubes and to compare these characteristics with those in the bubbling zone. Experiments were conducted in a 0.203 m I.D. air-sand fluidized bed. Experimental parameters examined included superficial gas velocity, particle size, static bed height, distributor design and location of the heating tube. The results suggested that the characteristics of heat transfer to horizontal tubes in the grid zone are significantly different from those in the bubbling zone. This study served as a guide for the second phase investigation involving electrically heated tubes and artificial jets.

• Research Organization: Dept. of Chemical Engineering, Lamar Univ., Beaumont, TX 77710
• OSTI ID: 6224342
• Report Number(s): CONF-851123-
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
420400* -- Engineering-- Heat Transfer & Fluid Flow
AIR
BUBBLES
DIMENSIONS
ELECTRIC HEATING
ENERGY TRANSFER
FLOW RATE
FLUID FLOW
FLUIDIZED BEDS
FLUIDS
GAS FLOW
GASES
HEAT EXCHANGERS
HEAT TRANSFER
HEATING
HOT WATER
HYDROGEN COMPOUNDS
JETS
OXYGEN COMPOUNDS
PARTICLE SIZE
SAND
SIZE
SOLIDS FLOW
THERMODYNAMICS
TUBES
TWO-PHASE FLOW
WATER