I don't know how to answer this question. A 20KW unit can be combined with many data sets: at H=20m, the flow rate is 0.14~0.15m3/s, and it is possible. generate 20KW. At H=7m, flow rate Q=0.5m3/s around, it can also generate 20KW, so what is your water height and flow rate. The preliminary calculation formula is: P(kw)=H*Q? *9.81*0.7
Five kilowatts How many cubic meters of water does a hydroelectric generator need per hour?
Water quality requirements water for cooling water in large generators (hollow stator copper wire):
1. PH value (25℃) 8.0-9.0
2. Conductivity (25℃) 0.4-2μs/cm
3. content ≤20μg/L
4. Dissolved oxygen content ≤30μg/L
It also depends on the water height (assume the water height is H (m), the flow rate is Q (m3/h), the power is P (kW) and the density of water is d (1000 kg/m3), the acceleration of gravity g = 10 m/s2, ctaking into account the conversion efficiency μ, the relevant formula is: P = μdgHQ/3.6, if: μ=0.6, P=5kW, d=1000kg/m3, H = 2m, then Q = 3, 6P/(μdgH) = 3.6x5/(0.6x1x10x2)= 1.5m3/h.
That is, when the generator has a height difference of 2 meters and a conversion efficiency of 0.6, the required water flow is about 1.5 meters cube per hour.