Abstract
Pumping stations are used to increase water pressures in supply mains for fire fighting, high rise building, and to maintain water supply in water towers and storage tanks. Water pressure reducing valves (PRV) are needed on domestic systems where the municipal water main's pressure is more than 80psi. Some of the energy loss across the PRV can be converted to electricity by replacing the existing PRV with small hydroelectric turbines and generators. Decreasing the water pressure from 150 psi to 50 psi also reduces the water flows through the system and wastewaters. There is a need to develop a scheme to control the operation of the in-conduit hydro-powered generator for maximum efficiency which is the subject of this paper.
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