20.500.12556/DKUM-90938 Analiza površinske barvne obdelave vodnika OPPC z namenom povečanja zmogljivosti hlajenja prenosnega voda Analysis of an OPPC conductor surface color treatment to enhance the cooling capacity of a transmission line V magistrskem delu so obravnavani prehodi toplote in toplotno ravnotežje visokonapetostnega nadzemnega večžičnega faznega vodnika OPPC s ciljem določiti njegovo temperaturno obremenitev glede na obremenitveni tok in meteorološke razmere. Zaradi potrebe po povečanju zmogljivosti hlajenja prenosnega voda so bili analizirani nanosi barvnih in namensko razvitih premazov na goli vodnik OPPC. V ta namen je bil izdelan analitični in numerični model za izračun toplotnega polja. Rezultati simulacij so bili potrjeni z meritvami in preskusi na merilni progi modela omrežja, postavljeni na preskusnem poligonu Infrastrukturnega centra za energetske meritve (ICEM-TC) v sodelovanju s podjetjem ELES, d. o. o. Goli OPPC vodnik je bil uporabljen kot referenca za primerjavo vplivov premazov na hlajenje vodnika. Ker imajo barvni premazi in tudi goli vodnik različne vrednosti emisivnosti in absorpcije, kar vpliva na temperaturo vodnika, je bila izvedena tudi eksperimentalna ocena emisivnosti. The master's thesis addresses heat transfer and thermal balance of a high-voltage overhead multi-stranded phase conductor OPPC intending to determine its thermal load in relation to the load current and meteorological conditions. Due to the need to increase the cooling capacity of the transmission line, coatings of colored and specially developed paints on the bare OPPC conductor were analyzed. For this purpose, an analytical and numerical model was developed to calculate the thermal field. The simulation results were confirmed through measurements and tests on a test track model of the network set up at the test site of the Infrastructure Center for Energy Measurements (ICEM-TC), in collaboration with the company ELES, d.o.o. The bare OPPC conductor was used as a reference for comparing the effects of coatings on conductor cooling. Since the colored coatings and the bare conductor have different emissivity and absorption values, which affect the temperature of the conductor, an experimental evaluation of emissivity was also conducted. vodnik OPPC toplotno ravnotežje nadzemnega vodnika emisivnost absorpcija površinska barvna obdelava hlajenje vodnika OPPC conductor heat balance of an overhead conductor emissivity absorption surface color treatment conductor cooling true true false [E. Drevenšek] Slovenski jezik Angleški jezik Magistrsko delo/naloga 2024-10-09 22:14:09 2024-12-23 09:05:28 2025-01-08 08:14:24 0000-00-00 00:00:00 2024 0 Maribor 0 0000-00-00 NiDoloceno NiDoloceno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 621.315(043.2) 221275395 MAG_Drevensek_Edi_2024.pdf MAG_Drevensek_Edi_2024.pdf 1 C4F1023A3C4F0991FA2A8758A386CFC4 89a239f6e4905f9da662c0d464baa7051aad1483a327204b438c089f0cb94534 c48e651c-bcab-11ef-a800-00155d000105 https://dk.um.si/Dokument.php?lang=slv&id=187413 Fakulteta za elektrotehniko, računalništvo in informatiko 0 0 0