Q. Apart from alloying, name a material that is used instead of ferritic steels to increase the ultimate strength of unalloyed steels.

View solution

Q. Which of these cases will have a higher cycle efficiency?

View solution

Q. For the given values of efficiency, inlet steam pressure and quality of steam, pressure limits can be determined by?

View solution

Q. Why Reheating of steam is used?

View solution

Q. Reheating of steam _____________

View solution

Q. Efficiency of cycle will increase due to Reheating if _____________

View solution

Q. Why don’t we use more than two reheats?

View solution

Q. The cycle efficiency in a single reheat plant is influenced by _____________

View solution

Q. The optimum reheat pressure for most of the modern power plants is ___________ of the initial steam pressure.

View solution

Q. What is the effect of reheat on steam quality?

View solution

Q. What should be the dryness fraction at the time of exhaust?

View solution

Q. Reheat is preferred for the plants having efficiency greater than _____________

View solution

Q. Which one of the following is an advantage of reheat cycle?

View solution

Q. The product of steam rate & network when the steam rate is expressed in kg/kWh is equal to?

View solution

Q. The product of heat rate & efficiency when the heat rate is expressed in kJ/kWh is equal to?

View solution

Q. What is the effect of reheat pressure on mean temperature of heat addition Tml?

View solution

Q. Why is the steam not allowed to expand deep into the two phase region before it is taken to reheating?

View solution

Q. Net Work output of the plant __________ with reheat.

View solution

Q. Which of the following problems are posed by increasing the number of reheats?

View solution

Q. What is the effect of decrease of reheat pressure on the quality of steam at turbine exhaust?

View solution