Hai Tao, Ali Masood Ashraf, Alizadeh As'ad, Almojil Sattam Fahad, Almohana Abdulaziz Ibrahim, Alali Abdulrhman Fahmi
School of Computer and Information, Qiannan Normal University for Nationalities, Duyun, Guizhou, 558000, China; Key Laboratory of Complex Systems and Intelligent Optimization of Guizhou, Duyun, Guizhou, 558000, China; Institute for Big Data Analytics and Artificial Intelligence (IBDAAI), Universiti Teknologi MARA, 40450 Shah Alam, Selangor, Malaysia.
Department of Industrial Engineering, College of Engineering, Prince Sattam bin Abdulaziz University, Alkharj 16273, Saudi Arabia.
Chemosphere. 2023 Apr;319:137847. doi: 10.1016/j.chemosphere.2023.137847. Epub 2023 Jan 16.
Renewable energy sources are undoubtedly necessary, considering global electricity demand is expected to rise dramatically in the coming years. This research looks at a unique multi-generation plant from the perspectives of exergy, energy, and economics; also, an environmental evaluation is performed to estimate the systems' CO emissions. The unit is made up of a biomass digester and gasifier, a Multi effect Desalination unit, and a supercritical CO (SCO) cycle. In this study, two methods for using biomass are considered: the first is using synthesis gas generated by the gasifier, and the second is utilizing a digester to generate biogas. A comprehensive parametric study is performed on the designed energy unit to assess the influence of compressor pressure ratio, Gas turbine inlet temperature, supercritical CO cycle pressure ratio, and the number of effects of multi-effect distillation on the system performance. Furthermore, the exergy study revealed that the exergy destruction in the digestion unit was 11,337 kW, which was greater than the exergy destruction in the gasification unit, which was 9629. Finally, when compared to the gasifier, the amount of exergy efficiency, net output power, and freshwater production in the digester was greater.
考虑到未来几年全球电力需求预计将大幅增长，可再生能源无疑是必要的。本研究从火用、能量和经济的角度考察了一个独特的多联产工厂；此外，还进行了环境评估以估算该系统的一氧化碳排放量。该装置由一个生物质消化器和气化器、一个多效脱盐装置以及一个超临界二氧化碳（SCO）循环组成。在本研究中，考虑了两种利用生物质的方法：第一种是使用气化器产生的合成气，第二种是利用消化器产生沼气。对设计的能源装置进行了全面的参数研究，以评估压缩机压力比、燃气轮机进口温度、超临界二氧化碳循环压力比以及多效蒸馏的效数对系统性能的影响。此外，火用研究表明，消化单元中的火用损失为11337千瓦，大于气化单元中的火用损失，后者为9629千瓦。最后，与气化器相比，消化器的火用效率、净输出功率和淡水产量更高。
