Читать книгу Introduction to Desalination - Fuad Nesf Alasfour - Страница 30

1 Working fluid water:State 1then h2 = 131.4 kJ/kg and s2 = 0.4423 kJ/(kg K).

2 Wrev = Ψ2 − Ψ1

3 Exergy destruction (irreversibility):

4 Exergetic efficiency:

Extra activity:

Student can perform the following:

1 Sketch T–v, P–v, and T–s diagram for actual and isentropic processes.

2 Resolve example using seawater (x = 40 000 ppm) as feed. Refer to Appendix A.

3 Compare results of feed seawater against water. Explain and comment.