What is the basic problem faced by a boiler designer in designing a steam generating unit? Why are potassium compounds added to the combustion products? What are the advantages of the mercury cycle?...

Why are potassium compounds added to the combustion products?

What are the advantages of the mercury cycle?

1. High overall plant efficiency

2. High availability (as much as 85%)

3. Operation simplicity

4. Acceptable plant maintenance

5. Reasonable plant cost

6. No operational trouble, though mercury is toxic.