Heat transfer to tubes in freeboard space of fluidized-bed combustors. Progress report, February 1, 1982-August 1, 1982

Technical Report · Sun Aug 01 04:00:00 EDT 1982

OSTI ID:6936315

Chen, J C; Tuzla, K; Biyikli, S

Progress is reported in experimental studies of the heat transfer characteristics of tubes located in the freeboard region of fluidized beds. The objectives of this research are to: obtain experimental data for heat transfer in freeboard region for single tubes at room temperature and at FBC operating temperatures; determine the effect of operating variables (gas velocity, tube elevation, particle size, particle density, etc.) on heat transfer coefficients; develop on experimental method for determinating the dominant heat transfer mechanisms in freeboard region, from solid contact measurements, in room temperature bed; and derive phenomenological models and correlations. The test equipment has been assembled and initial results for heat transfer coefficients at temperatures from 25/sup 0/C to 750/sup 0/C and flow rates of 1.5 and 3.0 m/s are presented. (LCL)

• Research Organization: Lehigh Univ., Bethlehem, PA (USA). Dept. of Mechanical Engineering and Mechanics
• DOE Contract Number: FG22-80PC30214
• OSTI ID: 6936315
• Report Number(s): DOE/PC/30214-T4; ON: DE82020247
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
420400 -- Engineering-- Heat Transfer & Fluid Flow
421000* -- Engineering-- Combustion Systems
DATA
ENERGY TRANSFER
EXPERIMENTAL DATA
FLOW RATE
FLUID FLOW
FLUIDIZED BED
GAS FLOW
HEAT TRANSFER
HIGH TEMPERATURE
INFORMATION
MEDIUM TEMPERATURE
NUMERICAL DATA
TUBES