A. (a) Show a reheat cycle on the T–s and h–s diagrams. (b) How is the reheat pressure chosen? What is its effect on the thermal efficiency of the plant? (c) Why is the employment of more than one...

A. (a) Show a reheat cycle on the T–s and h–s diagrams. (b) How is the reheat pressure chosen? What is its effect on the thermal efficiency of the plant?

(c) Why is the employment of more than one reheaters not popular?

B. Explain what is meant by the heat rates of the turbine, turbogenerator set and power station. What is the order of these values for large modern steam power stations?