Analiza toka zraka v venturijevem mokrem čistilniku : diplomsko delo

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Title:	Analiza toka zraka v venturijevem mokrem čistilniku : diplomsko delo
Authors:	ID Šantej, Žan (Author) ID Zadravec, Matej (Mentor) More about this mentor... ID Jeke, Uroš (Comentor)
Files:	UN_Santej_Zan_2022.pdf (4,30 MB, This file will be accessible after 07.09.2025) MD5: 3C25DE58B9D38B239AF37ED0A02166DC
Language:	Slovenian
Work type:	Bachelor thesis/paper
Typology:	2.11 - Undergraduate Thesis
Organization:	FS - Faculty of Mechanical Engineering
Abstract:	Cilj naloge je izdelava numeričnega modela Venturijevega mokrega čistilnika in določitev tlačnih padcev v napravi. V sklopu naloge so bili s pomočjo analitičnega preračuna določeni padci tlaka s poudarkom na Ventruijevem grlu. Izkaže se, da je največji tlačni padec glede na analitičen preračun v Venturijevem grlu, nato mu sledi del naprave, kjer so nameščeni cevni snopi. Po analitičnem preračunu sledi izdelava numeričnega modela s pomočjo računalniške dinamike tekočin, ki pa za razliko od analitičnega primera vključuje le plinsko fazo, saj modeliranje dvofaznega toka presega možnosti izdelave diplomske naloge na trenutni stopnji študija. V sklopu priprave numeričnega modela je bila izdelana geometrija numeričnega modela, računska mreža in določeni so bili robni pogoji, pri katerih deluje naprava. Primerjava rezultatov numeričnega modela, ki vključuje le plinsko fazo z rezultati analitičnega preračuna, ki vključuje tako plinsko kot kapljevito fazo pokaže na dobro kvalitativno ujemanje poteka tlačnih padcev glede na različne geometrijske in procesne spremembe obravnavanega sistema. Kvantitativna primerjava rezultatov pa nam poda, da imamo v primeru numerične simulacije glede na analitičen preračun manjše tlačne padce, kar je pričakovano, saj numerična simulacija ne vključuje kapljevite faze v obravnavanem sistemu.
Keywords:	mokri pralnik, Venturi, računalniška dinamika tekočin, numerična simulacija
Place of publishing:	Maribor
Place of performance:	Maribor
Publisher:	[Ž. Šantej]
Year of publishing:	2022
Number of pages:	1 spletni vir (1 datoteka PDF (XV, 52 f.))
PID:	20.500.12556/DKUM-82755
UDC:	519.876.5:532.57(043.2)
COBISS.SI-ID:	156593155
Publication date in DKUM:	14.09.2022
Views:	564
Downloads:	0
Metadata:
Categories:	KTFMB - FS
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Licences

License:	CC BY-ND 4.0, Creative Commons Attribution-NoDerivatives 4.0 International

Link:	http://creativecommons.org/licenses/by-nd/4.0/
Description:	Under the NoDerivatives Creative Commons license one can take a work released under this license and re-distribute it, but it cannot be shared with others in adapted form, and credit must be provided to the author.
Licensing start date:	31.08.2022

Secondary language

Language:	English
Title:	Fluid flow analysis in a venturi wet scrubber
Abstract:	The aim of the diploma thesis is to create a numerical model of a Venturi wet scrubber and to determine the pressure losses in the device. In the thesis, the pressure losses were determined using an analytical calculation that focuses on the venturi throat. From the analytical calculation, it is found that the largest pressure loss occurs in the Venturi part and then in the part of the device where the tube bundles are installed. After the analytical calculation, a numerical model is prepared using computational fluid dynamics, which, in contrast to the analytical case, includes only the gas phase, since modeling the two-phase flow is beyond the capabilities of a dissertation at the current stage of the study. As part of the preparation of the numerical model, the geometry of the numerical model, the computational grid, and the boundary conditions under which the device operates were established. A comparison of the results of the numerical model, which includes only the gas phase, with the results of the analytical calculation, which includes both the solid and droplet phases, shows a good qualitative agreement of the pressure losses corresponding to the various geometric and process changes of the system. A quantitative comparison of the results shows that we have lower pressure losses in the numerical simulation than in the analytical calculation, which is to be expected since the numerical simulation does not include any droplet phase in the considered system.
Keywords:	wet scrubber, Venturi, Computational fluid dynamics, numerical simulation

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