Show that the theoretical maximum power Pmax available from the water during the generating stage is given by P_{\max }=\rho g h \frac{\Delta V}{\Delta t} \text { - } \rho \text { is the density of the water }
In one PSS, h is 320 m and Pmax is 440 MW. \text { Calculate } \frac{\Delta V}{\Delta t} \text {. } p=1.0 × 10³ kg m-³X The PSS has an efficiency of 90% during the generating stage. Suggest two sources of inefficiency in the PSS during the generating stage.
Determine, in J, the net electrical energy output of the PSS for the 24-hour period shown in Figure 5. Explain why the overall efficiency of the PSS, for the 24-hour period, is significantly less than the generating efficiency of 90%. Explain two reasons why pumped storage systems are useful.
Fig: 1
Fig: 2
Fig: 3
Fig: 4
Fig: 5
Fig: 6
Fig: 7
Fig: 8
Fig: 9
Fig: 10
Fig: 11
Fig: 12
Fig: 13
Fig: 14
Fig: 15
Fig: 16