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Poseben način transporta toplote v aktivnem magnetnem regeneratorju : diplomska naloga univerzitetnega študijaTomc, UrbanV diplomski nalogi smo obravnavali poseben način transporta toplote v aktivnem magnetnem regeneratorju. Predstavili smo možnost oblike aktivnega magnetnega regeneratorja, pri katerem bi bil ... magneto-kalorični material tanka ploščica, dva Peltier-jeva elementa na vsaki strani pa bi skrbela za transport toplote na delovni fludi iz/v magneto-kaloričnega materiala. Za takšen sistem smo izdelali enostaven matematični model eno-dimenzijskega prenosa toplote. Nato smo matematični model ustrezno diskretizirali ter izdelali numerični program, s katerim smo nato izvedli parametrično analizo geometrije, lastnosti in obratovalnih podatkov. Pri analizi karakteristik Peltier-jevih elementov smo ugotovili velik vpliv hladilne in električne moči Peltier-ja na karakteristike celotne naprave oz. na obratovalno frekvenco. Pri analizi vpliva debeline magneto-kaloričnega materiala se izkažejo za ugodne debeline pod 0,1 mm. Analiza vpliva hitrosti fluida ter obratovalnih frekvenc pa je pokazala, da se z višanjem pretoka karakteristike celotne naprave (COP, hladilna moč) sicer izboljšujejo, vendar le do te mere, ko so tlačne izgube že tako visoke, da močno znižujejo COP. Izvedli smo tudi preračune, kjer smo uvedli minimalno temperaturno razliko med delovnima fluidoma na topli in hladni strani naprave. Izkaže se, da je takšna naprava sposobna črpati toploto iz hladne strani na toplo pri določeni minimalni temperaturni razliki fluida.Type of material - undergraduate thesis ; adult, seriousPublication and manufacture - Ljubljana : [U. Tomc], 2011Language - slovenianCOBISS.SI-ID - 11951387
Author
Tomc, Urban
Other authors
Poredoš, Alojz |
Kitanovski, Andrej
Topics
diplomske naloge |
magnetno hlajenje |
magnetni regeneratorji |
Peltier-jevi elementi |
termo-elektrika |
magnetic refrigeration |
magnetic regenerators |
thermoelectics |
Peltier elements
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Library | Call number – location, accession no. ... | Copy status |
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Faculty of Mechanical Engineering, Lj. | U 5962 IN: 40005962 |
available - reading room |
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Database name | Field | Year |
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Links to authors' personal bibliographies | Links to information on researchers in the SICRIS system |
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Tomc, Urban | 34418 |
Poredoš, Alojz | 06415 |
Kitanovski, Andrej | 18580 |
Source: Personal bibliographies
and: SICRIS
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