Chapter 6, Problem 6.41P

(a)

Interpretation Introduction

Interpretation:

Find the minimum superheat required so that exhaust contains no moisture.

Concept Introduction:

The minimum superheat required is nothing but the temperature difference of superheated vapors and saturated temperature.

So,

  $\text{Superheat}\text{=}\Delta T=T_1-T^{satat2000kPa}$

Where $\Delta T$ is the superheat required, $T_1$ is superheated steam temperature and $T^{satat2000kPa}$ is the saturation temperature corresponding to the superheated steam pressure which is given as $P_1\text{=2000}\text{kPa}$ .

(b)

Interpretation Introduction

Interpretation:

Calculate the power output of the turbine if it operates under these conditions and steam rate is $5\text{kg/s}$ .

Concept Introduction:

Power output calculate as,

  $P=\stackrel{•}{m}\left(H_2-H_1\right)$

                    .... (1)