2586 KB0 KB201320252020Avsec, JurijBotoc, DorinPlesca, AdrianRusu, Ionut-Bogdanletnik:13številka:iss. 4str. 51-61ISSN:1855-5748COBISSID_HOST:57863939URN:URN:NBN:SI:doc-0FOA95YQenFakulteta za energetikoJET on-lineJournal of energy technologyactive magnetic regeneratorenergijska učinkovitostenergy efficiencymagnetic refrigerationmagnetno hlajenjemagnetnokalorični učinekmagnetocaloric materialtermodinamikaProduction of artificial cold for industry, based on the magnetocaloric effect| Proizvodnja umetnega hladu, osnovana na magnetnokaloričnem učinku|The most common current technology for producing artificial cold is based on the operation of gas compression and absorption, which was discovered more than a century ago. This technology uses refrigerants as a heat transfer agent. Magnetic refrigeration is an innovative technology that works based on the magnetocaloric effect and the properties of certain rare materials/metals. The present paper describes a simulation of the magnetocaloric effect (MCE) of a gadolinium plate (Gd.), which is the main component of the active magnetic regenerator (AMR). The first part includes a description and history of the discovery of the magnetocaloric effect of materials that possess such properties. The continuation is a COMSOL Multiphysics modelling of AMR's main component: a gadolinium (Gd) plate. The simulation of the magnetocaloric effects and the heat dispersion on its surface was done in COMSOL, as was the highlighting of the adiabatic temperature on the flat surface of the plate. Water was used as a heat transfer agent, and gadolinium (Gd) was used as a reference criterion for the materials. The model simulates a single step of the magnetic refrigeration cycle and evaluates the AMR's performance with a single board. This study enables identifying the most important characteristics that influence the active magnetic regenerator's thermal behaviourNajpogostejša tehnologija za ustvarjanje umetnega hladu temelji na termodinamiki kompresorskih hladilnih strojev, ki so bili odkriti pred več kot stoletjem. Ta tehnologija uporablja hladilno sredstvo kot sredstvo za prenos toplote. Magnetno hlajenje je inovativna tehnologija, ki deluje na osnovi magnetokaloričnega učinka in lastnosti nekaterih redkih materialov/kovin. Prispevek opisuje simulacijo magnetokaloričnega učinka (MCE) gadolinijeve plošče (Gd.), ki je glavna sestavina aktivnega magnetnega regeneratorja (AMR). Prvi del članka vključuje opis in zgodovino odkritja magnetokaloričnega učinka materialov, ki imajo take lastnosti. Nadaljevanje je COMSOL Multiphysics modeliranje glavne komponente AMR: plošče gadolinij (Gd). Simulacija magnetokaloričnih učinkov in razpršitev toplote na njegovi površini je bila narejena v COMSOL-u. Model simulira en sam korak magnetnega hladilnega cikla in ovrednoti delovanje AMR z eno ploščo. Ta študija omogoča prepoznavanje najpomembnejših značilnosti, ki vplivajo na toplotno vedenje aktivnega magnetnega regeneratorjaTEXTznanstveno časopisjejournalsSlovenian National E-content AggregatorNational and University Library of SloveniaUniverza v Mariboru, Fakulteta za energetiko