Thermoeconomic analysis and multi-objective optimization of a novel trigeneration system consisting of kalina and humidification- dehumidification desalination cycles

Low-temperature geothermal heat sources have the highest share of energy in world. Utilization these for and freshwater generation can play an important role meeting demands. To do so, this study aims to propose a novel trigeneration cycle powered by low-temperature sources. The proposed system, which is integration Kalina humidification-dehumidification (HDH) cycles, used electricity, heating, freshwater. For cycle, evaporative condenser used. It also acts as humidifier heater desalination resulting reduction complexity system. A comprehensive thermoeconomic analysis multi-objective optimization new system are performed. First, detailed parametric carried out investigate effects key design parameters, including turbine inlet pressure, temperature, basic solution ammonia concentration, air mass flow rate source on criteria. Then, conducted determine best considering exergy total cost objective functions. optimal Pareto frontier indicates that efficiency vary range 14.9–41.6% 1.13–2.19 $/h, respectively. Analyses scattered distributions parameters reveal lower temperatures tend optimize However, altering other has significant effect trade-off between rate.