218
M. R. Zoolfakar and M. H. A. Majid
0.00
5.00
10.00
15.00
20.00
25.00
30.00
35.00
40.00
6
8
1 0
Output Power (mW)
Power of Pump (W)
1/4"
3/4"
Fig. 19.6 Diameter of pipe vs Power of after pump at 24 blade
0.00
4.00
8.00
12.00
16.00
20.00
24.00
28.00
32.00
6
8
1 0
Output power (mW)
Power of pump (W)
before
aŌer
Fig. 19.7 Position of pump vs power of pump at 3/4 diameter and 16 number of blades
unit placed after the 10 W pump produced up to 30 mW of electricity compare to
the hydropower unit placed before the 10 W pump that is below 0.2 mW. This is
because the pump boosts the water flowrate before entering the hydropower unit this
produces a faster rotation to generate electricity.
As shown in the graph of Fig. 19.8, when comparing the number of blades, the
higher the number of blades, the higher the power output. For each 6, 8, and 10 W
pump, respectively, where the hydropower unit was placed after it recorded that 24
blades produced more power output compared to 12 and 16 blades. This occurs
because more blades are available to pick the water stream that hit it when entering
the hydropower unit. So, it rotates more than else to produce a higher electrical
output.