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Niger's capital, Niamey, has grown rapidly in recent years. The city's rapid development will require more water to fulfil domestic and non-domestic water demand. Peripheral areas grow quickly and water supply is generally non-existent in these areas. Extension of the distribution networks...
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| Format: | Final Project |
| Language: | Indonesia |
| Online Access: | https://digilib.itb.ac.id/gdl/view/16603 |
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| Institution: | Institut Teknologi Bandung |
| Language: | Indonesia |
| Summary: | Niger's capital, Niamey, has grown rapidly in recent years. The city's rapid development will require more water to fulfil domestic and non-domestic water demand. Peripheral areas grow quickly and water supply is generally non-existent in these areas. Extension of the distribution networks appears to be necessary in order to cover the water needs of Niamey's population by 2015. The water production capacity is being increased from 80,000 m3/day to 110,000 m3/day, while the water transport with such capacity to the new expanded area in the West, North and East Side of Niamey is not available. In this report the required extension of the water transport network only to the East Side of the city is designed. Extension of the existing transport pipe network is going to influence the existing transport network. In order to determine the best location for the construction of the new transport pipe and to have the desired pressure and flow throughout the system, a network model has been implemented. The required network extensions for supplying water to a new service area have been designed using a hydraulic network model. The existing distribution network model was created using EPANET, and was calibrated with data from field measurement to get a similar network hydraulic condition between the computer model and the actual model. Based on the layout of the existing transport network, and the city map, two network extension alternatives were designed. They were all evaluated whether they met hydraulic requirements such as minimum water pressure and velocity inside the pipe and also assessed whether they are feasible or not. The alternatives have been evaluated based on required pipe and pump cost, construction and operational cost. Environmental impact used as one of the criterion when evaluating the alternatives. Based on this evaluation, one alternative will be addressed as the proposed network extension design. |
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