Reduction in environmental CO2 by utilization of optimized energy scheme for power and fresh water generations based on different uses of biomass energy

Hai T 1 , Ali MA 2 , Alizadeh A 3 , Almojil SF 4 , Almohana AI 5 , Alali AF 5

Affiliations 

  • 1 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. Electronic address: [email protected]
  • 2 Department of Industrial Engineering, College of Engineering, Prince Sattam bin Abdulaziz University, Alkharj 16273, Saudi Arabia. Electronic address: [email protected]
  • 3 Department of Civil Engineering, College of Engineering, Cihan University-Erbil, Erbil, Iraq. Electronic address: [email protected]
  • 4 Department of Civil Engineering, College of Engineering, King Saud University, P.O. Box 800, Riyadh 11421, Saudi Arabia. Electronic address: [email protected]
  • 5 Department of Civil Engineering, College of Engineering, King Saud University, P.O. Box 800, Riyadh 11421, Saudi Arabia
Chemosphere, 2023 Apr;319:137847.
PMID: 36657576 DOI: 10.1016/j.chemosphere.2023.137847

Abstract

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' CO2 emissions. The unit is made up of a biomass digester and gasifier, a Multi effect Desalination unit, and a supercritical CO2 (SCO2) 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 CO2 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.

* Title and MeSH Headings from MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.

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