15 KB417 KB14 KB200020242013Charvat, PavelMauder, TomasOstry, Milanštevilka:3letnik:47str. 391-394COBISSID:1000362ISSN:1580-2949URN:URN:NBN:SI:doc-NJ5XJWZPenInštitut za kovinske materiale in tehnologijeMateriali in tehnologijeheat exchangerizmenjevalnik toplotemateriali s fazno premenophase-change materialssimulacijasimulationExperimental and numerical investigation of an air-PCM heat-storage unit| Eksperimentalna in numerična preiskava enote zrak-PCM za shranjevanje toplote|The phase-change materials (PCMs) are quite promising heat-storage media for applications that require a high heat-storage capacity in a relatively narrow temperature interval. One of the areas of the latent-heat-storage application is thermal-energy storage in solar air systems, where a lower heat-storage temperature leads to an increase in the overall efficiency of the system. The paper deals with numerical and experimental investigations of the thermal performance of an air-PCM heat-storage unit. The studied unit contained 100 aluminum containers filled with a paraffin-based PCM. Both experimental and numerical investigations were done for a constant air temperature at the inlet of the heat-storage unitMateriali s fazno premeno (PCM) so obetavni mediji za shranjevanje toplote za uporabo, ki zahteva veliko kapaciteto shranjevanja toplote v relativno ozkem temperaturnem intervalu. Eno od področij uporabe shranjevanja latentne toplote je shranjevanje toplotne energije v solarnih sistemih, kjer nizka temperatura shranjevanja toplote povečuje splošno učinkovitost sistema. Članek obravnava numerične in eksperimentalne preiskave toplotne zmogljivosti enote zrak - PCM za shranjevanje toplote. Preiskovana enota je sestavljena iz 100 aluminijevih vsebnikov, napolnjenih s parafinskim PCM. Eksperimentalne in numerične preiskave so bile izvršene za konstantno temperaturo zraka, pri vhodu v napravo za shranjevanje toploteTEXTznanstveno časopisjejournalsSlovenian National E-content AggregatorNational and University Library of SloveniaInštitut za kovinske materiale in tehnologije