The data presented in connection with this investigation will serve as a guide for the engineer who plans to heat porous media on a larger scale. The experimental work gives an idea of the relative rates of heat flow through the porous material, depending on the nature of the fluid filling the pore spaces.

A method using simple calculus is presented for the calculation of vapor-liquid equilibria for complex mixtures. The computations are based on the true boiling point curve of the mixture and are performed with a plot of dM/riTe vs. Tb. The procedures and equations used are similar to those for component mixtures.