Study of an Absorption Refrigeration Machine Improved with Distillation Column

We propose in this article the study of the single-stage absorption refrigeration machine functioning with the fluids mixture of water - ammonia equipped with a distillation column to eliminate the water vapor in the refrigerant. Because the presence of the water vapor in the refrigerant enormously reduced the refrigeration effect of the machine and thus the improvement of thermodynamic of performance coefficient of the machine while reducing the operating temperature. We conceived a simulation program in FORTRAN language allowing the calculation of performance of the refrigeration machine. The study of this machine equipped with distillation column shows a clear improvement of the coefficient of performance which exceeds the (30%) compared to a simple machine without distillation column. The study shows also a rather important reduction in the operating temperature of the hot source, which makes this absorption refrigeration machine equipped with a distillation column better- adapted to solar energy (use of simple plate collector).