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HYDRAULIC MODELLING OF THE WATER SUPPLY SYSTEM OF BECLEAN CITY, BISTRITA NASAUD COUNTY, ROMANIA
Abstract
The paper presents a study of hydraulic modeling of the drinking water and sewage distribution network in Beclean City, Bistrita Nasaud County, from Romania. This study includes a calibrated simulation of the flow through networks (systems), which allows the elaboration of a future strategy of developing the networks (systems) of water and sewage. The need to develop hydraulic models as accurately as possible results from the fact that, by creating and calibrating the hydraulic model of a system, a variety of system problems can be identified, solutions can be mitigated to them by addressing the problem of rehabilitation, expansion or design of new systems, systematically with the exact observation of the influences that a certain operation has (modification) on the whole system. The calibrated hydraulic models allow this regardless of the complexity of the system (number of objects, nodes or pipes). The results can be tracked both at the scale of time, and in real time by simulating the functioning of the system at these time scales. We decided to approach the problems of sizing and verifying the network (system) using software solutions packages, in this case the MIKE URBAN calculation program (for pressure hydraulic systems and for free flow hydraulic systems). Thus, the network is completely resolved, the calculation of hydraulic sizing and verification of the network (system) being performed simultaneously on all sections of pipelines, and in all nodes of the network (system). Also, using this method it is possible to simulate the operation of the network within the considered time interval, thus observing the possible mismatches between the results obtained from the calculation, and the real values of the field, the rigor corrections can be made almost instantaneously in the nodes (sections), where this operation is required.
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