Chapter 7 - Multigenerational geothermal energy systems

Abstract

Geothermal energy–based energy systems are expected to play an important role among clean energy generation systems, as they can provide useful products, such as power, hydrogen, heating, and cooling from geothermal sources in a smartly engineered way. Regions rich in geothermal energy resources can meet their daily needs using these energy resources. The level of meeting these needs depends on the technological development level of the region as well as on the geothermal energy source potential. If the region has the technology to fully utilize the potential of its geothermal energy resources, it can make use of the resultant products such as electricity, hydrogen, heating, cooling, and freshwater with geothermal energy–based energy generation systems. In this section, generating useful outputs such as power, hydrogen, heating, cooling, and freshwater with a geothermal energy–based energy generation system is explained. In a case study, a geothermal energy–based energy generation system is modeled, and thermodynamic analysis is performed. The effect of different system indicators on the modeled system is evaluated by parametric analysis. The useful products obtained from the modeled system are shown comprehensively in the tables given. The effects of different system parameters are studied to further investigate how the performance characteristics, through both energy and exergy efficiencies, of the system and its subsystems are affected and are presented comparatively in the graphs.