Akademik Veri Yönetim Sistemi
El-Cezeri Journal of Science and Engineering, cilt.9, sa.2, ss.721-739, 2022 (Scopus)
The scope of this research is to examine the energetic and exergetic analysis of parabolic trough collector (PTSC) based integrated organic Rankine cycle (ORC) and ejector refrigeration system for generating power refrigeration and hot water. The novel system is driven by solar energy, where the working agent ammonia is directly evaporated while flowing through the parabolic collectors. In addition, a steam-jet ejector refrigeration system working with ammonia again is integrated to utilize the excess heat from the ORC. All the analyses are conducted using Engineering Equation Solver. According to the results of the first and second law analyses, the energetic and exergetic efficiency of the novel trigeneration system is computed as 26.67% and 14.21%, respectively. On the other hand, a parametric analysis was performed to examine the effect of solar irradiation, the temperature at the inlet of the turbine, and generator temperature on combined cycle performance. As stated by the results of the parametric studies of the novel trigeneration system, the energy and exergy efficiency of the multi-purpose energy system and the total exergy destruction rise by the increment of the solar irradiation and temperature at the turbine inlet, while the total exergetic efficiency reduces as the generator temperature rises. Moreover, the highest rate of irreversibility has PTSC with 150 kW, while the lowest amount of irreversibility is calculated as 0.02 kW in the pump of the ejector cooling system.