What is function of reheater in the boiler?

The function of the re-heaters is to re-superheat the partly expanded steam from the turbine. This is done so that the steam remains dry as far as possible through the last stage of the turbine.

What is the function of reheater in gas turbine?

The main purpose of reheating is to avoid excess moisture and to increase the quality of steam at the end section of turbine.

What is difference between superheater and reheater?

Superheater – increases the steam temperature above the saturation temperature. Reheater – removes the moisture and increases steam temperature after a partial expansion.

What is the effect of reheater on steam quality?

The quality of steam at the exit of the turbine is improved by reheating i.e. x 4s > x 4’s, so blade erosion reduces because water droplets in exhaust become less. It may also be noted that as the reheat pressure decreases, the quality of steam in a turbine exhaust (x 4) increases.

What is a reheater?

Definition of reheater : one that reheats: such as. a : a furnaceman who reheats metal. b : a receiver furnished with means for heating the steam in a compound engine or turbine. c : an apparatus for reheating compressed air before use to prevent excessively low temperatures due to expansion.

What is the function of reheater in the boiler Mcq?

Explanation: function of the superheater is to increase the temperature of steam above its saturation temperature.

Why is reheating done?

The main purpose of reheating is to avoid excess moisture in steam at the end of expansion to protect the turbine. But it need not improve the cycle efficiency. That will depend (as Dmitri said) upon whether the mean temperature of reheat addition is > or < the mean temperature of heat addition before reheat.

What is meant by reheating?

: to heat (something) again : to make (something) hot or warm once more reheating leftovers in the microwave.

How does a reheater work?

— Reheater is a part of the boiler which to reheat steam output from the first level of the steam turbine. Reheated steam will again absorb the heat energy from the boiler to be used in the next level steam turbine. Reheater is one way to improve the thermal efficiency of the Rankine Cycle.

What are the two benefits of adding a reheater to a Rankine cycle?

The advantages of using a reheat cycle are higher thermal efficiency, reduced feed water pump power, smaller condenser, smaller boiler, long life of the turbine and less handling of the fuel and firing requirement.

What is reheater and why it is used?

What do you mean reheater How does it work?

noun A heater for raising the temperature of steam which has been used once and is to be used again, as in the low-pressure cylinder of a compound engine, or which has been cooled by traveling a long distance. Reheating dries and possibly superheats the steam and so lessens the cylinder losses.