Solution
Referring to the mass curve plot between cumulative flows and months in
Fig. 12.24 we obtain the following.
- The uniform draw-off is the gradient of line OA
28.75 106 /12 30 24 60 600.924 m^3 s^1.The reservoir capacityBCDE10.5 106 m^3.
The initial storageDE6.5 106 m^3.- (a) The new demand with an initial storage of 4 106 m^3 (DG)
(Fig. 12.24) is the gradient of new demand line OF
25.75 106 /12 30 24 60 60 0.827 m^3 s^1.(b) The spillageHC 1 106 m^3.WORKED EXAMPLES 535
Fig. 12.24 Mass curve