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Title:NUMERIČNA ANALIZA TOKOVNIH RAZMER PRI IZPARILNIKU HLADILNIKA NAREJENEM PO SISTEMU ROLL BOND
Authors:ID Grabrovec, Matej (Author)
ID Škerget, Leopold (Mentor) More about this mentor... New window
ID Hriberšek, Matjaž (Comentor)
Files:.pdf UNI_Grabrovec_Matej_2009.pdf (5,20 MB)
MD5: 96543DD7B33AA55E40A71632223DF79F
PID: 20.500.12556/dkum/5ffc2759-a0f0-4765-83ed-4ed777498026
 
Language:Slovenian
Work type:Undergraduate thesis
Organization:FS - Faculty of Mechanical Engineering
Abstract:V diplomskem delu so predstavljene tokovne razmere v izparilniku hladilnika, pridobljene s pomočjo programskega paketa Ansys CFX 11. Izparilnik je bil narejen po sistemu ROLL-BOND. Modeli uporabljeni v preračunih so bili ena ravna plošča, dve ravni plošči, tri ravne plošče ter dve plošči s motilniki. V preračunu je bil uporabljen standardni k — ε turbulentni model. Predstavljeni rezultati prikazujejo značilno mejno plast vzdolž plošč izparilnika. Prav tako padec povprečne temperature na izhodu iz izparilnika, padec tlaka in hladilno moč. Določeni podatki, ki so bili primerjani z rezultati iz drugih virov, potrjujejo pravilno izbiro računskih modelov in potrjujejo uporabo numerične analize tokovnih razmer kot primerno za preučevanje tovrstnih problemov.
Keywords:izparilnik hladilnika, računalniška dinamika tekočin, CFX 11
Place of publishing:Maribor
Publisher:[M. Grabrovec]
Year of publishing:2009
PID:20.500.12556/DKUM-11932 New window
UDC:536.422.1(043.2)
COBISS.SI-ID:13727254 New window
NUK URN:URN:SI:UM:DK:U97BHOMU
Publication date in DKUM:01.10.2009
Views:4677
Downloads:351
Metadata:XML DC-XML DC-RDF
Categories:KTFMB - FS
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Secondary language

Language:English
Title:NUMERICAL ANALYSIS OF FLOW CIRCUMSTANCES IN EVAPORATOR DESIGNED ROLL BOND SYSTEM
Abstract:In this diploma work we performed a numerical analysis of flow circumstances through evaporator calculated with Ansys CFX 11. In my diploma I presented current situation in refrigerator evaporator, obtained through the software package ANSYS CFX 11th. Evaporator was made under the system ROLL-BOND. Models, used in my recalculations, were one flat plate, two flat plates, three flat plates and two plates with disorders. In my calculations I used a standard k – ε turbulent model. Results I have showen in my diploma show significantly limit layer along the evaporator plates. They also show the fall of evarage temperature at the outlet of evaporator, pressure drop and cooling power. Certain results, which were compared with results from other sources, confirm the correct choice of account modeling and confirm the usage of a numerical analysis of current situation as appropriate for studying theese kind of problems.
Keywords:evaporator, computational fluid dynamics, numerical methods(CFD), CFX 11


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