STEADY-STATE HEAT AND MATTER TRANSFER AT A NONUNIFORM PHASE-BOUNDARY

Fluxes of heat and matter are calculated by applying Onsager's irrever sible thermodynamics to a macroscopic system which comprises a number of layers with differing transfer coefficients for heat and matter. It is shown that Eq. (1), which was previously derived for transport thr ough a single uniform layer, applies to the composite system when suit ably averaged values of transfer coefficients are used. The results ar e applied to calculations of the rate of CO2 transfer at a model air-s ea interface which specifically includes the transition zone over whic h the medium changes from gas to liquid.