Geothermal power generation and mineral extraction from geothermal brines are affected by chemical processes within the reservoir. Until recently, numerical simulation technology for geothermal systems could not handle most chemical processes, except for tracking total salinity, one or two noncondensable gases, and non-reactive tracers. The Lawrence Berkeley National Laboratory (LBNL) has devel...

Organic Rankine Cycle power plants use organic, high molecular mass fluids to allow heat recovery from lower temperature sources such as industrial waste heat, geothermal heat, solar etc. The expansion process is usually carried out by axial or radial turbines. However, when the available thermal power is less than 1000 kW, the usage of positive-displacement expander becomes more suitable. In t...

The current work investigates the exergy analysis of a new system to generate power, heat, and refrigeration. In the proposed system, the heat loss of a gas turbine (GT) is first recovered by a Heat Recovery Steam Generator (HRSD), then by an Organic Rankine Cycle (ORC) to generate warm water and additional power, respectively. In the ORC, reheating is used to increase the output power, the req...

The scale precipitation is a major issue at geothermal power plants as it reduces the production rate of energy. precipitates different physical and chemical conditions in each plant result from fluid–rock interaction for specific plant. Thus, important to understand characteristics process fluid. information on transportation metals its hydrothermal fluid general will be useful formation ore d...

The possibility of producing electrical power in Algeria from low geothermal and solar heat resources is addressed using a hybrid generation hypothetical system based on combined flash-binary cycle with equal contributions energy. To improve their efficiency, energy integration techniques were used to recover waste the steam turbine by preheating working fluid R134a bottoming binary, which repr...