Abstract
Water shortage is one of the most important challenges of this century and it would be a serious obstacle for the mankind. In the near future, drinking water supply and water resources management will be at the forefront of planning for urban managers, which is becoming a crisis due to the serious shortage of water resources. This problem is more critical in country of Iran, where water depletion is now receiving serious attention. Different water management programs have been started by government to conserve and manage water more efficiently, especially in some critical areas such as Tabriz megacity located in North East of the country. Eram town is one of the problematic areas of Tabriz. Hence, in this study, we tried to do reengineering for this town to offer some solutions for the problems related with water supplying of the implemented network in this region. Regarding this issue, the GIS (Geographic information system) data of the available water supply network was used and the collected field data such as consumption rates in current conditions were applied to the network. Then the calibration of model was performed. Eram Town water distribution network reengineering has been performed considering a 2043 plan, taking into account population growth and the increase in consumption. In conclusion, it is suggested that, the network will perform more efficiently by adding new pipes or modifying the existing pipes. Also, the problem of lack of pressure in some parts of the network which cannot fulfill the requirements of subscribers at peak water usage hours, could be solved.
Highlights
Nowadays there are lots of problems related with the access to water in different areas and the expansion of existing networks for water supply in urban and industrial areas
The results show that after re-engineering, the pressure of critical points has reached to standard mode, that considering this issue, the water outage in the network will be resolved
Maximum consumption discharge in the current condition has been analyzed in WaterGEMS software, and the causes of problems regarding to the utilization of this network have been examined
Summary
Nowadays there are lots of problems related with the access to water in different areas and the expansion of existing networks for water supply in urban and industrial areas. In order to solve these issues it is necessary to recognize the hydraulic behavior of networks. Hydraulic analysis of a water distribution networks is the first step in designing of the city’s water systems. Modification of the old networks along the development of residential areas requires elaborate hydraulic analysis. A well-constructed network must be able to provide adequate pressure for consumers in whole day. If the network has hydraulically drawbacks, this aim cannot be met [1]. To properly analyze the water distribution networks, having accurate information and taking into account the operating conditions in the region is essential. These systems are generally constructed to deliver services for a range of consumers. By performing the design without detailed information, the design life will be less than anticipated, and so an urgent need for modification would be arisen
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