Procena R600a pomešanog sa različitim količinama nanočestica CuO, Al2O3 i SiO2
DOI:
https://doi.org/10.5937/zasmat2204463SKljučne reči:
nanočestice CuO, Al2O3 i SiO2, R600a, poboljšanje performansiApstrakt
U ovom radu tri različite koncentracije nanočestica CuO, Al2O3 i SiO2 su dispergovane u rashladnom sistemu R600a parom kompresije. Eksperiment je izveden korišćenjem koncentracija nanomaziva od 0g/L, 0.2g/L i 0.4g/L sa CuO, Al2O3 i nanočestice SiO2, difundovane u mineralnom ulju sa masenim udelom rashladnog sredstva od 30, 40 i 60 g. Nanomazivo je pripremljeno u različitim koncentracijama korišćenjem nanočestica CuO, Al2O3 i SiO2 i rashladnog masenog punjenja koji su korišćeni za izvođenje testova. Performanse sistema su ispitivane pomoću varijabli kao što su koeficijent performansi, efekat hlađenja, rad kompresora i test spuštanja. Kao rezultat ove studije, može se zaključiti da postoji značajno povećanje vrednosti COP od 2,7 korišćenjem koncentracije nanomaziva od 0,4 g/L SiO2 sa 40 g rashladnog sredstva. Ovo uključivanje nanomaziva povećalo je efekat hlađenja do 180W i rezultiralo smanjenjem rada kompresora na 60W. Rezultati dobijeni korišćenjem nanomaziva upoređuju se sa sistemom bez nanomaziva. Pul-down test sa koncentracijom nanomaziva od 0,4 g/L SiO2 brzo je postigao nisku temperaturu isparivača u poređenju sa drugim uslovima. Istraživanje je sprovedeno sa različitim nanočesticama u rashladnom sistemu R600a; eksperimenti su sprovedeni sa različitim nanočesticama različitim koncentracijama nanočestica i masenim punjenjem rashladnog sredstva. Iz eksperimenata je primećeno da SiO2 nanolubrikant dovodi do poboljšanog COP i efekta rashladnog sredstva, koji se može koristiti kao bolja alternativa čistom mineralnom sistemu za hlađenje. Među tri nanočestice, SiO2 je rezultirao boljim performansama i efektom hlađenja sa 56% manjom potrošnjom energije.Reference
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