Hydraulic Analysis and Optimization of a Part of the Water Supply System of the Buzet City Using WaterCAD V8i and Urbano Hydra Software Packages

Unutar ovog diplomskog rada razrađena su dva slučaja rasporeda vodoopskrbne mreže grada Buzeta. U prvom dijelu rada prikazane su osnovne značajke analiziranog područja, te su definirane mjerodavne količine potrebnih voda. Izvršeni su proračuni vodosprema i crpnih stanica. Drugi dio rada obuhvaća hidrauličku analizu vodoopskrbnog sustava unutar Excel-a, te WaterCAD V8i (WaterGEMS) i Urbano Hydra programskog paketa. Za oba slučaja promatrana su dva modela, model gravitacijskog dotoka vode u vodospremu i model dotoka vode u vodospremu crpljenjem. U prvom slučaju prikazane su tri varijante gravitacijskog dotoka vode i dvije varijante dotoka vode crpljenjem. Varijante se međusobno razlikuju obzirom na dispoziciju i nadmorsku visinu vodospreme i izvorišta. U drugom slučaju analizirana su oba modela, svaki s jednom varijantom. Unutar hidrauličkih analiza promatrane su promjene fizikalnih veličina (brzina, protoka, radnog tlaka) za različite vrsta materijala cijevi (lijevoželjezne, PVC i čelične cijevi) i različito požarno opterećenje (bez požara, s jednim, dva ili tri požara). Sagledane su oscilacije razine vode u vodnoj komori uslijed drugačije definiranih razina vode u vodospremi. Računalnim programima se slučajevi i varijante međusobno uspoređuju i evaluiraju. Programom Urbano Hydra iscrtani su uzdužni i karakteristični poprečni profili određenih dionica i rovova.Within this master's thesis, two cases of distribution of water supply networks of the city of Buzet have been developed. The first part of this thesis presents the general features of the analyzed area and relevant quantities of water were defined. Water reservoirs and pumping stations were calculated as well. The second part of this thesis includes hydraulic analysis of the water supply system within Excel, as well as WaterCAD V8i (WaterGEMS) and Urbano Hydra software packages. For both cases, two models were observed, the model of gravitational inflow of water into the reservoir and the model of inflow of water into the reservoir by pumping. In the first case, three variants of gravitational water inflow and two variants of water inflow by pumping are shown. The variants differ from each other with regard to the different disposition of the water reservoir and spring. In the second case, both models were analyzed, each with one variant. Within the hydraulic analyzes, changes in velocity, flow and pressure were observed for different types of materials (Ductile iron, PVC and steel pipes) and different fire loads (without and with fire). The oscillations of the water level in the reservoir due to differently defined water levels in the water reservoir were observed. Computer programs compare and evaluate cases and variants. With the help of Urbano Hydra software package longitudinal pipeline and characteristic cross section profiles were obtained