A review on exergy analysis of anaerobic digestion to produce methane biogas

• Main Authors: Hassoon, Atheer S., Hussien, Fawziea M., Faraj, Johain J.
• Format: Conference Proceeding
• Language: English
• Subjects: Anaerobic conditions; Anaerobic digestion; Anaerobic processes; Anaerobic treatment; Appropriate technology; Biogas; Biological effects; Biomass; Cost analysis; Efficiency; Exergy; Gasification; Methane
• ISSN: 0094-243X; 1551-7616
• DOI: 10.1063/5.0212269

Anaerobic digestion is a green technique that uses biological breakdown of biomass to produce methane-rich biogas. In order to determine the most effective, practical, and sustainable operations and circumstances, numerous engineering methodologies are being applied to make decisions on exergy analysis to product biogas. Several engineering approaches are being used to make judgments on exergy analysis to create biogas in order to find the operations and conditions that are the most efficient, useful, and sustainable in the long run. Because of the scientific precision with which exergy methods account for the efficiency, cost, and environmental implications of an anaerobic reactor biogas plant, they have garnered a lot of attention as an alternative. The purpose of this study is to quantitatively and critically evaluate the use of exergy approaches in the examination of biomass using the gasification process. Exergy efficiency and exergy dustruction are then critically analyzed and mechanistically explored in relation to biomass composition, anaerobic digester type, treatment, and the combination of biogas plant with other systems. Exergy efficiency is best and exergy destruction is lowest when a variety of biomass sources is treated using the most appropriate technology. In order to guide future research in this area, the benefits and drawbacks of exergy approaches to investigating the sustainability aspects of biomass with the gasification technology are discussed.