Chapter 6, Problem 6.66P

Interpretation Introduction

Interpretation:

The equilibrium condition after mixing the equal amounts of steam from two different boilers into same steam main if first steam is superheated and second is wet with some quality should be determined. The entropy generation for each kilogram of discharge steam should be determined.

Concept Introduction:

The quality of equilibrium discharge steam after mixing is defined as:

  $x=\frac{H-H^{liq}}{H^{vap}-H^{liq}}$

And the entropy generation for each kilogram of discharge steambased on one-pound discharge steam with equal amounts of input steam is calculated as:

  $S_G=S-0.5S_1-0.5S_2$