Practical, up-to-date techniques for identifying and eliminating common causes of boiler failure.

Filled with more than 200 color images, The Nalco Guide to Boiler Failure Analysis, Second edition categorizes distinct failure modes that typify nearly all boiler problems and walks you, step by step, through their solutions. Each type of failure is classified according to its location, general description, critical factors, identification, elimination, cautions, and related problems. Real-world case histories are included throughout.

Contents

Waterside Corrosion and Damage

Introduction to Boiler and Steam Systems

Deposit-Related Problems

1. Water-Formed and Steam-Formed Deposits

Overheating

2. Short-Term Overheating
3. Long-Term Overheating

Waterside Corrosion

4. Caustic Corrosion
5. Low-pH Corrosion during Service
6. Hydrogen Damage
7. Phosphate Corrosion
8. Corrosion by Chelating and Complexing Agents
9. Oxygen Corrosion
10. Corrosion during Cleaning
11. Stress-Assisted Corrosion

Cracking

12. Corrosion Fatigue Cracking
13. Stress Corrosion Cracking

Pre- and Postboiler Damage

14. Graphitic Corrosion
15. Dealloying
16. Steam and Condensate System Damage

Waterside Flow-Related Damage

17. Cavitation
18. Erosion and Erosion-Corrosion (Water and Steam Sides)
19. Flow-Accelerated Corrosion

Section 2: Fireside Corrosion and Damage

20. Waterwall (Furnace) Fireside Corrosion
21. High-Temperature Fireside Corrosion
22. Cold-End Corrosion during Service
23. Dew Point Corrosion during Idle Periods
24. Fireside Erosion

Section 3: Material Defects

25. Welding Defects

Index

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