| | SLO | ENG | Cookies and privacy

Bigger font | Smaller font
First page > Show document

Show document Help

Title:Numerična analiza tokovno-toplotnih razmer v laboratorijskem liofilizatorju : diplomsko delo
Authors:ID Goričanec, Mihael (Author)
ID Zadravec, Matej (Mentor) More about this mentor... New window
ID Ravnik, Jure (Comentor)
Files:.pdf UN_Goricanec_Mihael_2018.pdf (3,16 MB)
MD5: BE892E868A42FC929CDCD078EF8D48ED
PID: 20.500.12556/dkum/e4716402-e3ca-4b44-85c1-fd5d65b7368b
 
.zip UN_Goricanec_Mihael_2018.zip (127,23 KB)
MD5: 7DC940A22EA690AFC0A311EFA80541C4
PID: 20.500.12556/dkum/28d40e5f-9b36-426a-8ad6-355f9f984cd5
 
Language:Slovenian
Work type:Bachelor thesis/paper
Typology:2.11 - Undergraduate Thesis
Organization:FS - Faculty of Mechanical Engineering
Abstract:V diplomskem delu je predstavljena numerična analiza tokovno-toplotnih razmer v laboratorijskem liofilizatorju. Predstavljeno je teoretično ozadje procesa liofilizacije. S pomočjo numeričnih simulacij računalniške dinamike tekočin je bila izvedena analiza toplotno-tokovnih razmer v liofilizatorju. V nalogi je ključnega pomena določitev ekvivalentih koeficientov prehoda toplote preko ohišja v okolico in iz okolice v notranjost naprave. Izhodiščni koeficienti prehoda toplote so bili v začetni fazi določeni na podlagi analitičnih preračunov prestopa in prevoda toplote. V nadaljevanju so bili rezultati simulacije temperaturnega polja primerjani z izvedenimi meritvami na laboratorijskem liofilizatorju, na podlagi katerih je bilo ugotovljeno, da analitično izračunani koeficienti prehoda toplote ne dajo ustreznega ujemanja, kar je nato vodilo v ponovno določitev in modifikacijo analitičnih koeficientov. Na podlagi več izvedenih simulacij so bile določene končne vrednosti koeficientov prehoda toplote preko ohišja v okolico in iz okolice v notranjost naprave, ki dajejo zadovoljivo ujemanje z izvedenimi meritvami.
Keywords:računalniška dinamika tekočin, liofilizacija, prenos toplote
Place of publishing:Maribor
Place of performance:Maribor
Publisher:[M. Goričanec]
Year of publishing:2018
Number of pages:XI, 52 str., [1] f. pril.
PID:20.500.12556/DKUM-71883 New window
UDC:[519.6:536.2]:57.086.13(043.2)
COBISS.SI-ID:22289174 New window
NUK URN:URN:SI:UM:DK:FKCJRL7Z
Publication date in DKUM:18.04.2019
Views:1327
Downloads:98
Metadata:XML DC-XML DC-RDF
Categories:KTFMB - FS
:
GORIČANEC, Mihael, 2018, Numerična analiza tokovno-toplotnih razmer v laboratorijskem liofilizatorju : diplomsko delo [online]. Bachelor’s thesis. Maribor : M. Goričanec. [Accessed 17 March 2025]. Retrieved from: https://dk.um.si/IzpisGradiva.php?lang=eng&id=71883
Copy citation
  
Average score:
0.5
1
1.5
2
2.5
3
3.5
4
4.5
5
(0 votes)
Your score:Voting is allowed only for logged in users.
Share:Bookmark and Share


Searching for similar works...Please wait....
Hover the mouse pointer over a document title to show the abstract or click on the title to get all document metadata.

Licences

License:CC BY-NC-ND 4.0, Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International
Link:http://creativecommons.org/licenses/by-nc-nd/4.0/
Description:The most restrictive Creative Commons license. This only allows people to download and share the work for no commercial gain and for no other purposes.
Licensing start date:03.09.2018

Secondary language

Language:English
Title:Numerical analysis of flow-thermal conditions in a laboratory lyophilizer
Abstract:In the bachelor’s thesis, a numerical analysis of flow-thermal conditions in a laboratory lyophilizer is presented. The thesis contains a theoretical background of the lyophilization process. The analysis of flow-thermal conditions in the lyophilization process is simulated with computational fluid dynamics – CFD. The key mission in the thesis is to determine equivalent heat transfer coefficients through the housing into the surrounding and from the surrounding to the interior of the device. The basic heat transfer coefficients were initially determined on the basis of analytical calculations of the heat convection and conduction. In the following, the results of the simulation of the temperature field were compared with the performed measurements on a laboratory lyophilizer, on the basis of which it was found that the analytically calculated heat transfer coefficients did not give an adequate match which then led to the redefinition and modification of the analytical coefficients. On the basis of several performed simulations, the final values of heat transfer coefficient were determined, which gives a satisfying match with the performed measurements.
Keywords:computational fluid dynamics, lyophilization, heat transfer


Comments

Leave comment

You must log in to leave a comment.

Comments (0)
0 - 0 / 0
 
There are no comments!

Back
Logos of partners University of Maribor University of Ljubljana University of Primorska University of Nova Gorica