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The basic idea behind this MOOC is to present current data on fuel characterization, slagging, fouling, corrosion, and trace element transformations in a course that students and industry professionals can easily access.
This ensures that the research is understood and applied, and it provides a forum for students and industry to discuss the most recent research findings, as well as feedback from industry to the DTU research group on important new research subjects in the field.
Syllabus :
1. Brief MOOC Introduction and Incitement for Following This
- This module will introduce the basic content of the course to the student.
2. Fuel and Ash Chemistry and Characterization
- Quantification of Fuel Composition
- Biomass Characteristics
- Waste Characteristics
- Online Fuel Databases
- Quantification of Ash Fusibility
- SEM Analysis of Fuels and Additives
- Viscosity Measurements
3. Release of Critical Ash-Forming Elements
- Fundamentals of Release during Thermal Fuel Conversion
- Release og K, S and Cl from Wood in Grate-Fired Systems
- K-Release from the System K-Ca-P
- Release of Inorganic Elements in PF-Systems
4. Formation of Fly Ash and Aerosols
- Fundamental Considerations of Fly Ash Formation
- Physical Aspects of Fly Ash Formation
- Why Worry About Combustion Aerosols ?
- Combustion Aerosols: Formation
- Combustion Aerosols: Danish Case Study
5. Transport and Adhesion of Ash Particles
- The Effect of Transport of Ash Species on Deposit Formation ?
- Deposit Shape Controlling Parameters
- Mechanisms of Ash Transport
- Adhesion of Ash Particles
- Quantification of Sticking Probability for Silicate-Rich Ash
- Quantification of Heat Transfer in Multi-Layer Deposits
- A Simple Procedure for Estimation of Deposit Temperature Profiles
6. Deposit Build-Up, Consolidation and Shedding
- Deposit Build-Up: Fundamentals
- Changes in Deposits During Maturation
- Shedding of Deposits
- Shedding Measurements on Biomass-Fired Power Plants
- Shear Adhesion Strength Measurements
- Tensile Adhesion Strength Measurements
- Deposit Formation in the DTU-EFR
- Probe Deposition Measurements: Fundamentals
- Probe Deposit Measurements: Practical Problems
7. High-Temperature Cl-Corrosion
- Importance and Significance of High-Temperature Corrosion in Boilers
- High-temperature Corrosion in Straw-Fired Boilers: The Nielsen Corrosion Study
- High-Temperature Corrosion in Biomass-Fired Boilers: The van Lith Corrosion Study
- High-Temperature Corrosion in Waste-Fired Boilers: The Buchardt Corrosion Study
8. Use of additives to Minimize Deposit Formation and High-Temperature Corrosion
- Additives - Fundamental Aspects
- Introduction to Additive Physics and Chemistry
- S-Based Additives
- Al-Si Based Additives
- Use of Spent Bleaching Earth and Kaolin in Straw Dust-Firing
- Al-Si Based Additive Studies in the DTU-EFR
- Effect of Additives on Deposit Build-Up
9. Danish Case-Studies on Ash and Deposit Formation
- Deposit and Aerosol Formation in the Haslev and Slagelse CHPs
- Fly Ash and Deposit Chemistry at the Rudkøbing CHP
- Probe vs. Mature Deposits at the Masnedø CHP
- MKS1, Introduction
- MKS1, Deposit Formation
- AVV2, Aerosol Formation
- AVV2, Deposition Measurements
