ISSN Online: 2377-424X
International Heat Transfer Conference 3
HEAT TRANSFER BETWEEN WALL SURFACE AND PACKED SOLIDS
Abstract
Heat transfer mechanisms in packed beds, especially between packed solids and wall surface
were studied both experimentally and theoretically. Radial effective thermal conductivities and wall
heat transfer coefficients were measured in annular packed beds for glass spheres and steel balls with
air as well as glass spheres with water. Apparent values of wall heat transfer coefficient were correlated
by means of the effective thermal conductivities in the vicinity of the wall surface and compared
with the theoretical equation proposed by the authors, which accounts for the particular fluid mixing
near the wall.