Analiza toka zraka v venturijevem mokrem čistilniku

diplomsko delo

Žan Šantej (Author), Matej Zadravec (Mentor), Uroš Jeke (Co-mentor)

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;diplomske naloge;

Data

Language:	Slovenian
Year of publishing:	2022
Typology:	2.11 - Undergraduate Thesis
Organization:	UM FS - Faculty of Mechanical Engineering
Publisher:	[Ž. Šantej]
UDC:	519.876.5:532.57(043.2)
COBISS:	156593155
Views:	169
Downloads:	0
Average score:	0 (0 votes)
Metadata:

Other data

Secondary language:	English
Secondary title:	Fluid flow analysis in a venturi wet scrubber
Secondary 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.
Secondary keywords:	wet scrubber;Computational fluid dynamics;numerical simulation;
Type (COBISS):	Bachelor thesis/paper
Thesis comment:	Univ. v Mariboru, Fak. za strojništvo, Energetsko, procesno in okoljsko strojništvo
Pages:	1 spletni vir (1 datoteka PDF (XV, 52 f.))
ID:	16323075