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Simulation and assessment of water supply network for Al-Nasir network at Al-Najaf Governorate

Al-Mousawey Hassan, Abed Basim Sh.

Przegląd Naukowy Inżynieria i Kształtowanie Środowiska

2022

Vol. 31, No. 3

175--189

This study simulates and assesses the hydraulic features and residual chlorine in Al-Najaf city’s water supply network using WaterGEMS. Field and laboratory work was done to determine pressure heads, velocities, and chlorine residual. Constructed model was validated using field data. Values of RMSE were between 0.08 and 0.1, and 0.05 and 0.06 for pressure and residual chlorine, respectively. The examination of water distribution system (WDS) during peak demand hours indicated that the pump unit’s capacity could not meet the high-water demand, resulting pressure loss with values between 0.1 and 2 bar. Simulated residual chlorine levels ranged between 0.45 and 0.8 ppm.