文献类型：期刊文献

英文题名：Comparison of exergy and exergy economic evaluation of different geothermal cogeneration systems for optimal waste energy recovery

作者：Guo, Qiang[1]; Khanmohammadi, Shoaib[2]

第一作者：Guo, Qiang

机构：[1] School of Management, Xinxiang University, Henan, Xinxiang, 453003, China; [2] Department of Mechanical Engineering, Kermanshah University of Technology, Kermanshah, Iran

第一机构：新乡学院管理学院

年份：2023

卷号：339

外文期刊名：Chemosphere

收录：EI(收录号：20233214490513);Scopus(收录号：2-s2.0-85166534301)

语种：英文

外文关键词：Cooling - Economic analysis - Energy conversion efficiency - Energy efficiency - Exergy - Fuel cells - Rankine cycle

摘要：Since energy sources are limited, any activity aimed at recycling energy waste or facilitating energy conversion systems is invaluable. Against this background, most scientists focus on the integration of energy systems and the coupling of different technologies. In this study, a variety of power systems are investigated for optimal power conversion configurations of geothermal sources. Three configurations, Organic Rankine Cycle Geothermal Cooling (GPR/ORC), Kalina Cycle Geothermal Cooling (GPR/Kalina), and Rankine Cycle and Feed water Heater (GPR/FWH) Geothermal Cooling, are classified according to exergy and Study energy economic analysis. Calculations show that the GPR/FWH system has the highest net output power of 2963 kW. In addition, the GPR/Kalina system has the lowest output power and lowest energy efficiency among the systems launched. Across the three proposed systems, the fuel cell generates 1254 kW of electricity, while the Kalina cycle in the GPR/Kalina system generates 487 kW. Exergy studies show that the GPR/Kalina and GPR/FWH systems have the lowest and highest irreversibility (3795.4 kW and 4365.56 kW, respectively). Furthermore, the fuel cell was found to have the greatest exergy destruction rate among the three configurations. The results of the economic analysis show that the fuel cell has the highest cost ratio among all designs. In addition, the values of the dissipation factor show that the absorption chiller has the highest dissipation factor value among the three configurations. Furthermore, the comparative parametric analysis provides new aspects to introduce into the system. ? 2023 Elsevier Ltd