ISSN Online: 2377-424X
International Heat Transfer Conference 4
HEAT TRANSFER FROM CYLINDERS EMBEDDED IN A LIQUID FILLED POROUS MEDIUM
Abstrakt
Heat transfer from a cylinder embedded in a porous medium that is saturated with liquid has been studied experimentally and analytically for the case where the porous medium is essentially semi-infinite with a horizontal surface under a free liquid region. When the permeability is low and the heat rate is low (low Grashof-Prandtl product) the heat is transferred entirely by conduction. At a Grashof-Prandt1 number of 10−2 convection begins to play a role. A correlation has been developed for the heat transfer in the convection region. When the heat rate is increased the surface temperature eventually reaches the saturation temperature and subcooled boiling commences.