Analysis of Kalina cycle based on the 1st law of thermodynamics

Starting from the 1st law of thermodynamics, and making use of Peng-Robinson equations to serve as the basic equations for representing the properties of ammonia-water mixtures, a thermodynamic analysis of a stair distillation Kalina cycle is being presented. A program for calculating the thermodynamic properties of ammonia-water mixtures, and another for calculating the performance of Kalina cycles, have been composed, with which the heat-work conversion particulars of Kalina cycles have been theoretically calculated, and the influence on cycle property of critical parameters, like the pressure and temperature at turbine's entrance, the turbine's back pressure, the concentration of the working solution and that of the basic solution as well as the cycle's mass ratio, analyzed.