Leak Localization in Water Distribution Networks Using PSO Method

Gubitci vode su veliki problem u svijetu, a tako i u Hrvatskoj. Sve države Europe pokušavaju smanjiti gubitke vode u javnoj vodoopskrbi. Nove direktive EU nalažu da se voda počne naplaćivati po zahvaćenoj vodi, a ne kao do sada po isporučenoj količini vode. U svrhu ovog diplomskog rada, napravljena je hipotetska vodoopskrbna mreža u programu Epanet za koju su se provodili proračuni da bi se vidjelo može li se putem optimizacijske metode doći do određenog čvora u kojemu je prethodno zadan gubitak vode. Računalne simulacije su se provodile tako da se uspoređivalo kakva je točnost rezultata ovisno o broju mjernih mjesta tlakova. Sve računalne simulacije su se provodile da bi se dobila što manja funkcija cilja koja je definirana mjerom odstupanja između tlakova. Programski kod pomoću kojeg se radila optimizacijska metoda napisan je u programskom jeziku Python.Water losses are a big problem in the world, as well as in Croatia. All European countries are trying to reduce water losses in the public water supply. The new EU directives mandate that water be charged for the amount of water consumed, and not for the amount of water delivered as before. For the purpose of this thesis, a hypothetical water supply network was created in the Epanet program, for which calculations were carried out to see if the optimization method could be used to reach a certain node in which the water loss was previously set. Computer simulations were carried out in such a way that the accuracy of the results was compared depending on the number of pressure measurement points. All computer simulations were performed in order to obtain as small an objective function as possible, which is defined by the measure of the deviation between the pressures. The programming code used for the optimization method was written in the Python programming language