Differentiate between direct contact condenser and surface condenser. Mention uses of each type.

What is cogeneration? When cogeneration should be considered?

Name different $NO_x$ reduction techniques. Mention the advantages and disadvantages of selective catalytic reduction technique of $NO_x$ reduction.

Differentiate between direct contact condenser and surface condenser. Mention uses of each type.

What is cogeneration? When cogeneration should be considered?

Name different $NO_x$ reduction techniques. Mention the advantages and disadvantages of selective catalytic reduction technique of $NO_x$ reduction.

How sulfur dioxides are extracted from coal based thermal power plants?

What is draft? What are the different types of draft losses?

What is cogeneration? When this process is used? Give example.