Let the source temperature vary from 100 c to 1000 c

Info iconThis preview shows page 1. Sign up to view the full content.

View Full Document Right Arrow Icon
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: urce at 400°C. Determine (a) the entropy change of the working fluid, (b) the entropy change of the source, and (c) the total entropy change for the process. 7–27 Reconsider Prob. 7–26. Using EES (or other) software, study the effects of the varying heat added to the working fluid and the source temperature on the entropy change of the working fluid, the entropy change of the source, and the total entropy change for the process. Let the source temperature vary from 100 C to 1000 C. Plot the entropy changes of the source and of the working fluid against the source temperature for heat transfer amounts of 500 kJ, 900 kJ, and 1300 kJ, and discuss the results. 7–28E During the isothermal heat rejection process of a Carnot cycle, the working fluid experiences an entropy change of 0.7 Btu/R. If the temperature of the heat sink is 95°F, SINK 95°F 7–31 The radiator of a steam heating system has a volume of 20 L and is filled with superheated water vapor at 200 kPa and 200°C. At this moment both...
View Full Document

This document was uploaded on 11/28/2012.

Ask a homework question - tutors are online