文献类型：期刊文献

英文题名：Comprehensive energy, exergy, and economic analyses of a geothermal and flue gas-based dual-source power, hydrogen, and freshwater trigeneration system

作者：Bian, Li[1];Che, Xiangqian[2];Pugazhendhi, Arivalagan[3]

机构：[1]Guangdong Ocean Univ, Sch Maritime, Zhanjiang 524088, Peoples R China;[2]Guangdong Ocean Univ, Sch Math & Comp Sci, Zhanjiang 524088, Peoples R China;[3]Ton Duc Thang Univ, Fac Environm & Labour Safety, Ho Chi Minh City, Vietnam

年份：2024

卷号：181

起止页码：502

外文期刊名：PROCESS SAFETY AND ENVIRONMENTAL PROTECTION

收录：SCI-EXPANDED(收录号：WOS:001133531500001)、、EI(收录号：20234915182844)、WOS

基金：This work was supported by program for scientific research start-up funds of Guangdong Ocean University (R2007) , Innovation & strengthening engineering research project of Guangdong Ocean University (2020zdzx2039) .

语种：英文

外文关键词：Allam cycle; Geothermal energy; Proton exchange membrane electrolyzer; Zero emission plant; Self-provider system

外文摘要：Designing a ploy-generation system to produce various products is an effective method to improve the common power plant's performance. Hence, the current investigation proposes a green poly-generation system driven by geothermal and flue gas. The proposed scheme consists of an organic Rankine cycle, proton exchange membrane electrolyzer, saline water desalination unit, and Allam cycle to produce power, hydrogen, and freshwater. The produced oxygen in the electrolyzer feeds the Allam cycle to perform an oxyfuel process to achieve zero CO2 emission. Per the 4E analysis, the system produces 27,720 kW net power, 931 kmol/h hydrogen, and 616.7 kmol/h freshwater. In this way, the energy and exergy efficiencies are obtained at about 16.87% and 51.65%. The total exergy destruction rate is estimated at about 78,926 kW, in which the organic Rankine cycle and its vapor generator have the highest portions among the different parts and equipment by about 69% and 18.87%. The sensitivity analysis indicates that by the CO2 recycle ratio of 60%, the highest energy and exergy efficiencies reach 19.3% and 54.33%. Furthermore, the unit cost of hydrogen and electricity productions are 0.07$/kWh and 7.24 $/GJ, which is a considerable reduction compared to similar methods.