DBPapers
DOI: 10.5593/SGEM2014/B31/S12.085

STUDY OF THE UNSTEADY WATER FLOW IN SALSIG-MARAMURES CATCHMENT PIPES NETWORK AND ULIUC HEADRACE

A. T. CONSTANTIN, M. A. GHITESCU, G. LAZAR, S. V. NICOARA, A. P. BUSAN
Wednesday 1 October 2014 by Libadmin2014

References: 14th International Multidisciplinary Scientific GeoConference SGEM 2014, www.sgem.org, SGEM2014 Conference Proceedings, ISBN 978-619-7105-13-1 / ISSN 1314-2704, June 19-25, 2014, Book 3, Vol. 1, 655-662 pp

ABSTRACT
The paper presents a numerical simulation of the unsteady water flow through the pipes network of Salsig-Maramures Catchment Line and Uliuc Headrace supplying with fresh water the Town of Cehu Silvaniei, Salaj County, corresponding to a reasonable running situation. The resented hydraulic study is based on specific data regarding the network geometry, the topographic and hydro-geology situation of the catchment area, the technical information describing the six drillings (F5, F7, F8, F9, F10 and F11) in the flood plain of Somes River at the confluence with Salaj Creek, and the path topography along which the headrace to the Uliuc reservoir lays down, respectively. A daily water demand distribution is assumed (the hourly variation ratios for the increased consumption interval considered from 0.51 to 1.37), which leads to a maximum water flow reached in the network of 1.64 m3/min. The hourly water volume required for the supply system is stored up by the Uliuc reservoir placed about 12000m from the catchment line. The Salsig-Maramures Catchment is represented by 9 drillings endowed with 9 pumps of variable rotation speed. The performed simulation considers as running simultaneously a group of 6 out of the 9 pumps (situation corresponding to “option O3” – situation employing the F5, F7, F8, F9, F10 and F11 combination of drillings). Several relative rotation speed values are considered in such a way that the working parameters of the running system to be optimized.

Keywords: Groundwater modelling, pipes, drillings discharges