Numerical Simulation of a Low-Enthalpy Mini Geothermal Power Plant Operating in ORC (Organic Rankine Cycle) and Optimization of System Components

Abstract

In this work, a friendly computer program was developed to simulate several ORC configurations, using mass, energy and entropy equilibrium. Also, we used the principle of heat transfer and mathematical modeling in turbines, pumps, boilers and condensers for ideal and real situations. The criteria for predicting thermodynamic properties, such as enthalpy and entropy, have been taken from previous work [P.F. Arce 2016]. This friendly software can also be used for teaching applied thermodynamics in undergraduate and other Degree courses. In addition to good accuracy, the developed computer programs in this work have several configurations not only Rankine's organic cycles but also other computer programs. Between ideal and real conditions (reversible and irreversible processes) there are more option to choose. All results are obtained by arrogant cycles and operate under reversible conditions such as turbines and pumps with 90% isentropic efficiency. Real conditions (irreversible processes) have been explored for a simulation over time because many computer programs for ORC have been implemented in this option.