HYDRAULIC PERFORMANCE OF PALESTINIAN WATER DISTRIBUTION SYSTEMSHYDRAULIC PERFORMANCE OF PALESTINIAN WATER DISTRIBUTION SYSTEMS (JENIN WATER SUPPLY NE

HYDRAULIC PERFORMANCE OF PALESTINIAN WATER DISTRIBUTION SYSTEMS

(JENIN WATER SUPPLY NETWORK AS A CASE STUDY)

Prepared by

Shaher Hussni Abdul Razaq Zyoud

Supervised by

Dr. Hafez Shaheen Abstract

The design of municipal water distribution systems in Palestine is implemented by using universal design factors without taking into consideration the effects of local conditions such as intermittent pumping, which is a way of operating the water distribution systems in most cities of developing world. By this way the water systems are divided into several pressure zones through which water is pumped alternatively and provided a large number of homes with a high quantity of water in a shorter period. This way makes the using of the roof storage tanks is very efficient during the non – pumping intervals, so that the hydraulic performance of the water networks expected to be affected by affecting the pressure and velocities values.

To investigate the behavior of the water systems under the action of intermittent pumping, the Jenin water distribution network has been taken as a case study and a procedure of modeling the system as in reality depending on operational factors, ways of operating and managing the system, representing each cluster of houses by one consumption node, making control by check valves, modeling the system by using (WaterCad Program). The outputs show that the network is exposed to relatively high values of pressure and velocity, which have negative effects on the performance of the network. The comparison of pressure results and field measurements at specific locations shows a reasonable and small difference.

The modeling