4. Convective boiling of mixtures

4.1 Convective boiling heat transfer

For fluid mixtures, the exchange coefficients obtained experimentally are notably lower than for pure bodies, but this degradation varies with the composition of the mixture. Compared with pure bodies, the vaporization of a multicomponent fluid is highly complex due to the mass transfers of the species involved.

VDI-Heat Atlas recommends the use of a superposition model for nucleate boiling and convective transfer effects, such as Chen's pure-body model, for mixtures. The contribution of nucleate boiling must be modified. As the component with the lowest...