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Title:Eksperimentalna in analitično-numerična analiza sušenja komunalnega odpadnega blata : diplomsko delo
Authors:ID Raduha, Tomaž (Author)
ID Zadravec, Matej (Mentor) More about this mentor... New window
ID Gomboc, Timi (Comentor)
Files:.pdf VS_Raduha_Tomaz_2020.pdf (2,44 MB)
MD5: 62D56D8D6BE3EE3E7A39DE393C5185DC
PID: 20.500.12556/dkum/b665fd22-8110-4574-b282-c4fd9a05270f
 
.zip VS_Raduha_Tomaz_2020.zip (616,53 KB)
MD5: 89A8501B56DB5705D4E47B31F09833AD
PID: 20.500.12556/dkum/7402a91f-68a1-41b0-9777-17fab9036f41
 
Language:Slovenian
Work type:Bachelor thesis/paper
Typology:2.11 - Undergraduate Thesis
Organization:FS - Faculty of Mechanical Engineering
Abstract:Komunalno blato, kot stranski produkt čiščenja komunalnih voda, vsebuje veliko količino vlage. Pred nadaljnjo uporabo blata, kot surovino za sežig, moramo vlago odstraniti s pomočjo mehanskih in toplotnih postopkov odstranjevanja vlage. V diplomski nalogi bomo s pomočjo numerične analize napovedali hitrosti sušenja komunalnega blata. Podatki, pridobljeni na osnovi numerične analize, so bili primerjani z rezultati meritev realnega procesa sušenja vzorcev komunalnega blata, ki je bil izveden v kuhinjski pečici pri različnih temperaturah sušilnega zraka. Na osnovi rezultatov numerične analize sta bili določeni toplotna in snovna prestopnost, ki smo ju uporabili v analitičnih izračunih. Pri izvedbi numeričnih simulacij smo uporabili različne računske mreže in numerične modele za reševanje turbulentnega toka. Prav tako smo, s pomočjo izračunov različnih Sherwoodovih števil, napovedali bolj natančne vrednosti masnih tokov pri procesu sušenja uparjene vode. Končni rezultati kažejo na do 90-odstotno ujemanje med rezultati meritev in analitično-numerično dobljenimi vrednostmi.
Keywords:sušenje, komunalno blato, numerična analiza
Place of publishing:Maribor
Place of performance:Maribor
Publisher:[T. Raduha]
Year of publishing:2020
Number of pages:VI, 36 f.
PID:20.500.12556/DKUM-77581 New window
UDC:[628.336.4:66047.41]+519.6(043.2)
COBISS.SI-ID:36622851 New window
NUK URN:URN:SI:UM:DK:LAZLTIJQ
Publication date in DKUM:24.09.2020
Views:5883
Downloads:138
Metadata:XML DC-XML DC-RDF
Categories:KTFMB - FS
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Licences

License:CC BY 4.0, Creative Commons Attribution 4.0 International
Link:http://creativecommons.org/licenses/by/4.0/
Description:This is the standard Creative Commons license that gives others maximum freedom to do what they want with the work as long as they credit the author.
Licensing start date:03.09.2020

Secondary language

Language:English
Title:Experimental and analytical-numerical analysis of municipal waste sludge
Abstract:Sludge, as a by-product of wastewater cleaning treatment, contains a large amount of present moisture. Before further use of the sludge as a raw material for incineration, this moisture must be removed with drying. The thesis of the final paper states that we can predict the drying speed of sludge, with the help of analytic-numerical analysis. Results from the analysis are compared with measurements taken from a drying process made in an oven with different set temperatures. From the numerical analysis the necessary velocity vectors are obtained, which are used in the analytical calculation of the mass transfer from the test object to the drying air. We vary the properties of the mash and set various turbulent models to achieve better numerical results. We also try to predict more accurate final values of the evaporated water mass flow by calculating different Sherwood numbers. In the end, when comparing the measure data to the calculated data, we achieve a deviation of about 10%.
Keywords:Drying, sludge, numerical analysis


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