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Dvofazni trdno-kapljevinski tok vode in ledu za transport hladilne energije = [Two-phase solid-liquid ice slurry flow for transport of cooling energy] : doktorsko deloKitanovski, AndrejǂV ǂdoktorskem delu so predstavljene dosedanje raziskave na področju reologije, transporta ter prenosa toplote pri ledeni brozgi. Kot nadgradnjo sob na podlagi eksperimentalnih podatkov določene ... reološke zakonitosti homogenega toka ledene brozge za različne koncentracije ledu in zazlične koncentracije aditiva - etanola v vodi, kot začetni mešanici pri proizvodnji ledene brozge. Preizkušena sta dva različna reološka modela, kjer je ledena brozga obravnavana kot Binghamov in Cssonov fluid. S pomočjo reoloških zakonitosti so bili izdelani diagrami, ki omogočajo določitev faktorja trenja pri transportu ledene brozge skozi cevovode, kar ima izjemen praktičen pomen. Narejena je doslej najobsežnejša analiza določitve padca tlaka z različnimi modeli, kar lahko da v prihodnosti smernice raziskovalcem o kvaliteti modela in nenazadnje inženirjem služi za dimenzioniranje cevovodov in določitev črpalk. V delu so prikazani tokovni vzorci, kot so prehodi med homogenim in heterogenim tokom, ter heterogenim tokom in tokom s premikajočo posteljo, kar je izjemnega pomena za zanesljivo obratovanje sistema in lahko v prihodnosti služi pri nadaljnjih raziskavah ter tudi numeričnih simulacijah. Tokovni vzorci so bili določeni s pomočjo eksperimentalnih podatkov in uporabo ustreznih teoretičnih modelov. Na osnovi numerične analize prenosa energije in toplote je bila razvita enačba za popis turbulentne viskoznosti ledene brozge.Type of material - dissertationPublication and manufacture - Ljubljana : [A. Kitanovski], 2003Language - slovenianCOBISS.SI-ID - 5669147
Author
Kitanovski, Andrej
Topics
strojništvo |
hladilna tehnika |
disertacije |
hlajenje |
prenos toplote |
mehanika tekočin |
suspenzija |
ledena brozga |
cooling |
heat transfer |
fluid mechanics |
suspensions |
ice slurry
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Skladišče II 0000060927 Skladišče II 60927 |
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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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Kitanovski, Andrej | 18580 |
Source: Personal bibliographies
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