Thermodynamic Analysis of Ammonia Based Direct Steam Generation Trigeneration System
Abstract
The goal of this study is to examine the energetic and exergetic analysis of parabolic trough collector (PTSC) based integrated organic Rankine cycle (ORC) and ejector refrigeration cycle for generate power, refrigeration, and hot water. EES software program is used to carry out the performance evaluation of the trigeneration system. The first and second laws of thermodynamics are used in the calculations. According to the results of the thermodynamic analysis, the energetic and exergetic efficiency of the trigeneration system are computed as 26.67% and 14.21%, respectively. At the same time, parametric studies have been performed to examine the effect of solar radiation, temperature of turbine inlet, and generator temperature on combined cycle performance. When the parametric studies of the trigeneration system are examined, the energetic and exergetic efficiency of the trigeneration system and the total exergy destruction rise with the increase of solar irradiation and turbine inlet temperature, while the total exergetic efficiency reduces as the generator temperature rises. Moreover, the highest rate of irreversibility has the PTSC with 150 kW, while the lowest amount of irreversibility is calculated as 0.02 kW in pump of the ejector cooling system.