Question

5 Please sketch the following processes qualitatively on the P-v or T-v diagrams and calculate the change of internal energy of the process. Note: you need to have saturate line in your diagram and please write the numerical values of the initial state and final state on your diagram (a) T v diagram; water at the iniial state of 32 MPa and 30 C undergoesa (b) P- v diagram; water at the initial state of 2.5 bar and 0.6 quality undergoes a (c) T- v diagram; water at the initial state of 200 C and u 2642.9 kJ/kg undergoes constant pressure process to the final state of 520 C (5%); constant temperature process to the final state of 1 bar (5%); a constant pressure process to the final stat of v-0.00 10146 m3/kg (5%).

Answer 1