20.500.12556/RUL-171623 Analiza odlaganja vodnega kamna v sistemih s spremenljivo trdoto vode in magnetno obdelavo Analysis of limescale deposition in systems with variable water hardness and magnetic treatment Trda voda, ki vsebuje visoke koncentracije kalcijevih in magnezijevih ionov, pogosto povzroča nalaganje vodnega kamna v cevnih in toplotnih sistemih. Posledično se zmanjšuje učinkovitost prenosa toplote, povečuje poraba energije in skrajšuje življenjska doba naprav. V diplomskem delu preučujemo vpliv magnetne obdelave vode na nalaganje vodnega kamna v cevnih sistemih. Glavni cilj je bil eksperimentalno ovrednotiti učinkovitost magnetnega polja pri zmanjševanju tvorbe oblog iz kalcijevega karbonata. V ta namen je bil vzpostavljen sistem z dvema ločenima vodnima tokokrogoma. Sistem je bil enkrat izpostavljen magnetnemu polju, drugič pa je služil kot referenčna kontrola. Meritve so vključevale spremljanje temperature, tlaka, vrednosti pH, električne prevodnosti in trdote vode, dopolnjene z analizo strukture nastalih kristalov z vrstičnim elektronskim mikroskopom (SEM) in energijsko disperzijsko spektroskopijo (EDS). Rezultati so pokazali, da magnetna obdelava vpliva na obliko in strukturo kristalov, kar zmanjšuje njihovo sposobnost oprijema na zunanje stene cevi. S tem se potrjuje potencial uporabe magnetne obdelave kot alternativne metode za omejevanje nalaganja vodnega kamna v toplotnih in cevnih sistemih. Hard water, which contains high concentrations of calcium and magnesium ions, often causes limescale deposits to form in piping and heating systems. As a result, heat transfer efficiency decreases, energy consumption increases, and the service life of equipment is shortened. In this thesis, we examine the impact of magnetic water treatment on limescale formation in piping systems. The main objective was to experimentally evaluate the effectiveness of a magnetic field in reducing the formation of calcium carbonate deposits. For this purpose, a system with two separate water loops was established. The system was exposed to a magnetic field in one case, while in the other it served as a reference control. Measurements included monitoring of temperature, pressure, pH value, electrical conductivity, and water hardness, complemented by crystal structure analysis using Scanning Electron Microscopy (SEM) and Energy-Dispersive Spectroscopy (EDS). The results show that magnetic treatment affects the shape and structure of the crystals, reducing their ability to adhere to the outer walls of the pipes. This confirms the potential of magnetic water treatment as an alternative method for limiting limescale accumulation in thermal and piping systems. magnetna obdelava vode trdota vode kalcijev karbonat kalcit aragonit analiza kristalov prenos toplote magnetic water treatment water hardness calcium carbonate calcite aragonite crystal analysis heat transfer true false false Slovenski jezik Angleški jezik Diplomsko delo/naloga 2025-08-29 08:31:34 2025-08-29 08:31:39 2025-09-10 03:35:55 0000-00-00 00:00:00 2025 0 0 XX, 68 str. 2025 0000-00-00 NiDoloceno NiDoloceno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 274974 43039.pdf 43039.pdf 1 DC1A027E67A9A04AC0BFD63770A33865 c13937514e75c7fc027bb1e7eee2f3bf90b0057f8673b76e90e063298e7fbaf8 afd4f477-84a1-11f0-9328-0050569b8976 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=215003 Fakulteta za strojništvo 0 0 0