Analysis of a multiple energy production system based on geothermal energy to generate clean electricity and hydrogen

In this study, we analyzed the energy, exergy of a multiple energy production system based on geothermal energy. The system under study consists of geothermal subsystems, Rankin organic cycle and PEM electrolyzer and thermoelectric application. The organic fluid used in the Rankin organic cycle contains refrigerant R123. The products of this system produce multiple energy, including electricity and hydrogen. Thermodynamic software for solving engineering equations (EES) was used to model the studied system and also to obtain the results of system analysis. The results were calculated and evaluated using the ambient temperature of Bandar Abbas for the hottest day. According to the studies of the parameters affecting the system outputs, we can name the turbine efficiency, inlet temperature to the evaporator, thermoelectric suitability criterion, pump efficiency and mass flow inlet to the evaporator. The results also showed that the current work geothermal system in a year compared to the ambient temperature of Bandar Abbas can produce 352816.2 kWh of power per year and as a result this system can meet the electricity needs of about 12 Iranian families during the year.