A turbine takes in 2 200-K steam and exhausts the steam at a temperature of 200 K.What is the maximum theoretical efficiency of this system?

Question

A turbine takes in 2 200-K steam and exhausts the steam at a temperature of 200 K.What is the maximum theoretical efficiency of this system?​

Quizplus · Accepted Answer

The maximum theoretical efficiency of a steam turbine can be calculated using the Carnot cycle efficiency formula:

Efficiency = 1 - (T_low/T_high)

Where T_low is the temperature of the exhaust steam and T_high is the temperature of the steam entering the turbine.

Using the given values, we get:

Efficiency = 1 - (200/2200) = 0.91 or 91%

Therefore, the correct choice is C.

A Turbine Takes in 2 200-K Steam and Exhausts the Steam