ISSN Online: 2377-424X
ISBN Print: 0-89116-299-2
International Heat Transfer Conference 7
HEAT TRANSFER TO MODERATELY INCLINED PIPES IN BUBBLING LARGE PARTICLE, AIR FLUIDIZED BEDS
摘要
Heat transfer in fluidized media has been the
subject of many studies but the recent interest in
Fluidized Bed Combustors (FBC) of coal and oil
shale has focussed particular attention on heat
transfer to horizontal and moderately inclined
pipes immersed in large particle beds. Wide discrepancies
in the available heat transfer coefficient
data and significant uncertainty in the
parametric trends militate against the rational
design and optimization of FBC power plants.
The present effort details the results of an empirical investigation of large-particle bed heat transfer coefficients, emphasizing the influence of bed fluid dynamics on thermal transport at the pipe surface. Bed-side heat transfer coefficients are found to depend strongly on the fluidization flow regime and moderately on both the angle of inclination between 0° and 23° and the type of distributor.
The present effort details the results of an empirical investigation of large-particle bed heat transfer coefficients, emphasizing the influence of bed fluid dynamics on thermal transport at the pipe surface. Bed-side heat transfer coefficients are found to depend strongly on the fluidization flow regime and moderately on both the angle of inclination between 0° and 23° and the type of distributor.