Final answer:
The three main problems in a steam boiler due to water chemistry are corrosion, scale formation, and foaming or priming.
Step-by-step explanation:
The three main problems that can occur in a steam boiler due to water chemistry are corrosion, scale formation, and foaming or priming.
- Corrosion: This is the deterioration of metal surfaces in the boiler due to chemical reactions with the water. It can lead to thinning of metal, pitting, and ultimately boiler failure.
- Scale formation: When certain minerals in the water, such as calcium and magnesium, precipitate and form a hard deposit on the boiler surfaces. Scale can reduce heat transfer efficiency, increase energy consumption, and contribute to boiler overheating.
- Foaming or priming: This is the formation of excessive amounts of bubbles in the boiler water. Foaming can lead to carryover of water droplets along with the steam, which can cause damage to downstream equipment and reduce steam quality.