Abstract
In this paper, natural-convection heat and mass transfer from a horizontal upward-facing plane surface of a medium layer heated by a radiant heat source to the air is investigated experimentally.
Experiments are conducted by using two kinds of radiant heat sources, an infrared lamp and a panel heater, and three kinds of media, water, dimethylphthalate and marble, which differ in transmissivity to radiation. Measurements of natural-convection heat and mass transfer coefficients are made through various ranges of experimental conditions.
Within the range of experimental conditions employed (3×105<Ra, Ram<5×106), it is found that the present measured data agree well with measured data reported in cases where radiative heat transfer does not dominate, and the mutual relation between heat and mass transfer is analogous.
