Enroll Course: https://www.coursera.org/learn/sustainability-fuels-ash-chemistry-deposits-corrosion-additives
The drive towards sustainable energy sources is commendable, but it often brings its own set of technical hurdles. One significant challenge, particularly in the energy utilization of biomass and waste fuels, is the behavior of ash. Fortunately, Coursera offers a comprehensive course, “Ash-Related Operational Challenges in Energy Utilization of Sustainable Fuels,” that dives deep into this complex topic. Developed by experts from DTU (Technical University of Denmark), this MOOC is an invaluable resource for students and industry professionals alike.
The course begins with a concise introduction, setting the stage for the critical issues surrounding ash. Module 2, “Fuel and Ash Chemistry and Characterization,” provides a robust foundation. It introduces a range of analytical techniques, from basic proximate and ultimate analyses to advanced methods like Simultaneous Thermal Analysis (STA) for ash fusion and Scanning Electron Microscopy (SEM). This module also highlights the utility of online fuel databases, equipping learners with essential tools for understanding fuel properties.
Following this, Module 3, “Release of Critical Ash-Forming Elements,” focuses on how key elements like potassium (K), sulfur (S), and chlorine (Cl) are released during thermal conversion. It delves into the quantification of release from different combustion systems and offers a detailed look at K-release from specific ash types.
The subsequent modules meticulously trace the journey of ash. Module 4, “Formation of Fly Ash and Aerosols,” examines the physical aspects of residual fly ash and the formation of harmful aerosols, including insights from pioneering Danish studies. Module 5, “Transport and Adhesion of Ash Particles,” explains the crucial mechanisms like diffusion, thermophoresis, and inertial impaction that govern how ash species move and stick to surfaces.
Modules 6 and 7 tackle the direct consequences of ash accumulation. “Deposit Build-Up, Consolidation and Shedding” explores the intricate physical and chemical interactions leading to deposit formation and practical measurement experiences. “High-Temperature Cl-Corrosion” then details the chemical interactions between deposits and heat transfer tubes, a critical concern in boiler operations.
Recognizing the need for mitigation strategies, Module 8, “Use of Additives to Minimize Deposit Formation and High-Temperature Corrosion,” presents practical solutions. It discusses the application of additives, both traditional and advanced, to manage ash chemistry and reduce environmental impact.
Finally, the course culminates in Module 9, “Danish Case-Studies on Ash and Deposit Formation.” This module offers real-world examples from Danish utility boilers, showcasing challenges and solutions in various firing systems, including co-firing and biodust-firing. These case studies provide invaluable context and demonstrate the practical application of the course material.
Overall, “Ash-Related Operational Challenges in Energy Utilization of Sustainable Fuels” is a meticulously structured and highly informative course. It bridges the gap between fundamental research and practical industrial application, offering a comprehensive understanding of ash-related issues. For anyone involved in the energy sector, particularly those working with sustainable fuels, this course is a must-take. It provides the knowledge and insights needed to optimize operations and overcome the persistent challenges posed by ash.
Enroll Course: https://www.coursera.org/learn/sustainability-fuels-ash-chemistry-deposits-corrosion-additives