Faculty of Mechanical Engineering, Lj. (FSLJ)
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Termodinamska in termoekonomska primerjava parnih ejektorjev in injektorjev s kompresorji in črpalkami : zaključna naloga Univerzitetnega študijskega programa I. stopnje Strojništvo - Razvojno raziskovalni programDolinar, Jure, inženir strojništvaParni ejektorji in injektorji predstavljajo konstrukcijsko enostavno alternativo električnim kompresorjem in črpalkam. V zaključni nalogi smo se osredotočili na področje hladilne tehnike. S ... termodinamskim modelom smo preučili parni ejektor z mešanjem pri konstantnem tlaku in iterativno izračunali masno razmerje tokov pri izbranih obratovalnih pogojih. Napako rezultata smo zmanjšali z nadgradnjo modela ejektorja in z uporabo rezultatov opravili eksergijsko analizo. Delovni medij je bil R600a. S termodinamsko in termoekonomsko analizo smo ovrednotili parne ejektorje in injektorje v primerjavi s kompresorji in črpalkami. Za slednje smo izračunali celotni eksergijski izkoristek z upoštevanjem povprečnih eksergijskih izkoristkov generiranja in transporta električne energije v Sloveniji. Ugotovili smo, da so v določenih primerih parni ejektorji in injektorji termodinamsko boljši od kompresorjev in črpalk. Termoekonomski izračuni pa so pokazali, da so ejektorji in injektorji dražji v izbranih konfiguracijah hladilnih sistemov.Type of material - undergraduate thesis ; adult, seriousPublication and manufacture - Ljubljana : [J.Dolinar], 2023Language - slovenianCOBISS.SI-ID - 163155203
Author
Dolinar, Jure, inženir strojništva
Other authors
Perpar, Matjaž, strojnik
Topics
diplomske naloge |
parni ejektorji |
parni injektorji |
kompresorji |
črpalke |
eksergijski izkoristek |
termoekonomika |
thesis |
steam ejectors |
steam injectors |
compressors |
pumps |
exergy efficiency |
thermoeconomics
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UN 0000001795 IN: 80001795 UN 1795 IN: 80001795 |
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Database name | Field | Year |
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Dolinar, Jure, inženir strojništva | |
Perpar, Matjaž, strojnik | 04471 |
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