Experimental investigations of osmotic-and-diffusive free energy conversion.

A practical method of analysis of osmotic-and-diffusive conversion of free energy of solutions with different concentrations in membrane systems, which was elaborated previously (Kargol 1990) is experimentally verified in this work. A proper membrane system was chosen for examination. Equations for power and efficiency were obtained in a mathematically simple way for this system as an example of application of the method. Next, experimental investigations were made, whose results show the reasonability of the method proposed.