Use EES or NIST to generate a P–v diagram for water that includes:

A. Constant temperature curves at 300 K, 373 K, and 450 K that extend from compressed liquid to superheated vapor;

B. The vapor dome showing the saturated liquid and vapor conditions;

C. A linear scale for the pressure and specific volume axes.

D. Now generate the same P–v diagram but using a logarithmic scale for the pressure and specific volume axes;

E. Label the axes and isotherms. In your discussion,

F. Compare your figures with Figure 2.35 in the text.

G. From your plot, at what pressure does water at 373 K boil? (That is, become a saturated mixture.)

H. Use your plot to identify how the saturation pressure a increases with temperature.

Figure 2.35

Transcribed Image Text:

Pressure (MPa) 100 10 0.1 0.01 0.001 0.0001 0.001 T=373.12 K Saturation line T= 373.12 K 0.01 1 0.1 Specific volume (m³/kg) 10 T= 373.12 K 100 1000