Page 59 - DJJ20063- Thermodynamics 1
P. 59
DJJ20063- Thermodynamics 1
ACTIVITY 2D
2.8 Determine the specific enthalpy of steam at 15 bar and 275 C.
o
2.9 Determine the degree of superheat and entropy of steam at 10 bar and 380 C.
o
2
o
2.10 A superheated steam at 12.5 MN/m is at 650 C. Determine its specific volume.
o
2.11 A superheated steam at 24 bar and 500 C expands at constant volume until the
pressure becomes 6 bar and the dryness fraction is 0.9. Calculate the changes in the
internal energy of steam. Sketch the process in the form of a P-v diagram.
50 | P a g e
