20.500.12556/DKUM-11932 NUMERIČNA ANALIZA TOKOVNIH RAZMER PRI IZPARILNIKU HLADILNIKA NAREJENEM PO SISTEMU ROLL BOND NUMERICAL ANALYSIS OF FLOW CIRCUMSTANCES IN EVAPORATOR DESIGNED ROLL BOND SYSTEM 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. 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. izparilnik hladilnika računalniška dinamika tekočin CFX 11 evaporator computational fluid dynamics numerical methods(CFD) CFX 11 true true false [M. Grabrovec] Slovenski jezik Angleški jezik Diplomsko delo 2009-09-24 14:59:48 2009-10-01 14:05:23 2022-04-12 07:04:31 2022-04-18 03:34:19 2009 0 Maribor 0 0000-00-00 NiDoloceno NiDoloceno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 536.422.1(043.2) 13727254 URN:SI:UM:DK:U97BHOMU UNI_Grabrovec_Matej_2009.pdf UNI_Grabrovec_Matej_2009.pdf 1 96543DD7B33AA55E40A71632223DF79F e699da5f7fbd044aaf5a3b1e9f0e36cfe1bd24f0c81d212f7e0691c6e22bdc21 44557bbe-7c03-11eb-bb7a-00155d0001ca 20.500.12556/dkum/5ffc2759-a0f0-4765-83ed-4ed777498026 https://dk.um.si/Dokument.php?lang=slv&id=10955 Fakulteta za strojništvo 0 0 0