Assessment of a Geothermal Combined System with an Organic Rankine Cycle and Multi-effect Distillation Desalination

Abstract An analysis is reported of a geothermal-based electricity-freshwater system in which an organic Rankine cycle integrated with multi-effect distillation desalination unit. The driven by geothermal hot water extracted from the production well. Mass, energy, entropy, and exergy rate balances are written for all components, as energy efficiency expressions each subsystem. destruction associated temperature chemical disequilibrium freshwater brine reference environment taken into account to reveal accurate results irreversibility sources within process. developed thermodynamic model simulated using properties working fluids (i.e., ammonia, seawater, distillate, brine) at state point. A sustainability performed that connects environmental impact concepts. That assessment expresses extent contribution sustainable development reduced impact, methods. Results indicate that, increase 20 35 $$^\circ{\rm C}$$ ? C , decreases systems respectively 6474 4217 kW 16,270 13,459 kW. Also, corresponding index increases 1.16 1.2 1.5–1.6, respectively, same temperature.