Department of Mechanical and Industrial Engineering, The University of Iowa, Iowa, IA 52242, USA.
Department of Mechanical and Industrial Engineering, The University of Iowa, Iowa, IA 52242, USA.
Bioresour Technol. 2018 May;255:246-256. doi: 10.1016/j.biortech.2018.01.093. Epub 2018 Feb 2.
The Biomass Integrated Gasification Combined Cycle (BIGCC) power system is believed to potentially be a highly efficient way to utilize biomass to generate power. However, there is no comparative study of BIGCC systems that examines all the latest improvements for gasification agents, gas turbine combustion methods, and CO Capture and Storage options. This study examines the impact of recent advancements on BIGCC performance through exergy analysis using Aspen Plus. Results show that the exergy efficiency of these systems is ranged from 22.3% to 37.1%. Furthermore, exergy analysis indicates that the gas turbine with external combustion has relatively high exergy efficiency, and Selexol CO removal method has low exergy destruction. Moreover, the sensitivity analysis shows that the system exergy efficiency is more sensitive to the initial temperature and pressure ratio of the gas turbine, whereas has a relatively weak dependence on the initial temperature and initial pressure of the steam turbine.
生物质一体化煤气化联合循环（BIGCC）发电系统被认为是一种利用生物质发电的高效方式。然而，目前还没有对 BIGCC 系统的比较研究，该研究考察了气化剂、燃气轮机燃烧方法以及 CO 捕集和封存方案的最新改进。本研究使用 Aspen Plus 通过火用分析来研究最近的技术进步对 BIGCC 性能的影响。结果表明，这些系统的火用效率范围为 22.3%至 37.1%。此外，火用分析表明，带外部燃烧的燃气轮机具有相对较高的火用效率，而 Selexol CO 去除方法的火用破坏较低。此外，敏感性分析表明，系统的火用效率对燃气轮机的初始温度和压力比更为敏感，而对蒸汽轮机的初始温度和初始压力的依赖性相对较弱。
