20.500.12556/DKUM-99391 Izboljšanje energijskega razreda pralnega stroja z uporabo toplotne izolacije in prilagoditvijo temperature pranja Improving the energy efficiency class of a washing machine through thermal insulation and washing temperature adjustment Diplomska naloga obravnava vpliv dodatne toplotne izolacije na energijsko učinkovitost pralnega procesa pri zmanjšani temperaturi pranja. Namen raziskave je bil ugotoviti, ali lahko z zmanjšanjem toplotnih izgub, pri čemer znižamo temperaturo pranja, izboljšamo energijski razred naprave, ne da bi pri tem poslabšali pralni učinek oz. da bi ostal dovolj dober, da smo znotraj predpisanih mej. V okviru naloge je bilo izvedenih več eksperimentalnih meritev segrevanja in ohlajanja vode v različnih pogojih delovanja. Meritve so bile izvedene v dveh osnovnih primerih: brez dodatne izolacije in z nameščeno toplotno izolacijo z zmanjšano temperaturo pranja. Na podlagi izmerjenih podatkov so bile pripravljene tabele rezultatov in izračuni, s katerimi so bili primerjani čas ohlajanja in energijska učinkovitost posameznih primerov. Izvedeni so bili tudi matematični izračuni in praktične meritve za določeno količino vode v pralnem stroju. Rezultati raziskave so pokazali, da dodatna toplotna izolacija zmanjšuje toplotne izgube sistema in omogoča učinkovitejše ohranjanje temperature vode. Ugotovljeno je bilo, da je z uporabo izolacije pri programu z zmanjšano temperaturo mogoče doseči boljši energijski razred. This thesis examines the impact of additional thermal insulation on the energy efficiency of the washing process at reduced washing temperatures. The aim of the study was to determine whether reducing heat losses—while lowering the washing temperature—can improve the appliance’s energy rating without significantly compromising washing performance, i.e., while remaining within acceptable tolerance limits. Within the scope of the thesis, several experimental measurements of water heating and cooling were conducted under different operating conditions. The measurements were carried out in two main scenarios: without additional insulation and with installed thermal insulation combined with a reduced washing temperature. Based on the collected data, result tables and calculations were prepared to compare the cooling time and energy efficiency of the individual cases. Mathematical analyses and practical experiments were also performed for a defined quantity of water in a washing machine. The results show that additional thermal insulation reduces heat losses in the system and enables more efficient temperature retention of the water. It was found that, by using insulation in a low-temperature washing program, a better energy rating can be achieved. toplotna izolacija energijski razred pralni učinek energijska učinkovitost thermal insulation energy class washing performance energy efficiency true true false Slovenski jezik Angleški jezik Diplomsko delo/naloga 2026-08-14 12:47:16 2026-09-25 07:57:17 2026-09-26 03:10:40 0000-00-00 00:00:00 2026 0 Maribor 0 0000-00-00 NiDoloceno NiDoloceno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 VS_Zajc_Jaka_2026.pdf VS_Zajc_Jaka_2026.pdf 1 51459F0D060289390FDEFA007D250B04 631beb40ce91879180b51de3af3203e02b90d7664c260cb5ed6b09f190a8687c 78731ea4-97d0-11f1-910e-00155d0001be https://dk.um.si/Dokument.php?lang=slv&id=209511 Fakulteta za elektrotehniko, računalništvo in informatiko 0 0 0