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Question

Identifytheincorrectstatement, from the following options related to the below statement. Superheated steam is used in a Rankine power cycle ________ . 

A.

because it increases work output of the cycle for same pressure limit

B.

because it increases cycle efficiency for same pressure limit 

C.

because steam at the exit of turbine will be less wet, preventing erosion of turbine blades 

D.

to reduce the work of pumping 

Answer ( Option D)

to reduce the work of pumping 

Solution

Superheated steam is used in a Rankine power cycle because :

1. It increases work output of the cycle

2. It increases cycle efficiency for same pressure limit

3. Steam at the exit of turbine will be less wet, preventing erosion of turbine blades

In a Rankine cycle, superheated steam is not used to reduce the work of pumping.

Hence, the correct option is (D).

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