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Title:Numerična simulacija tokovno-toplotnega polja vode v električnem grelniku sanitarne vode : diplomsko delo
Authors:ID Umbreht, Manja (Author)
ID Zadravec, Matej (Mentor) More about this mentor... New window
Files:.pdf UN_Umbreht_Manja_2020.pdf (18,68 MB)
MD5: CF320EF44647DC0111668AC68AFF38DF
PID: 20.500.12556/dkum/c283e855-4df6-4dda-81fc-de2bef390c22
 
Language:Slovenian
Work type:Bachelor thesis/paper
Typology:2.11 - Undergraduate Thesis
Organization:FS - Faculty of Mechanical Engineering
Abstract:V diplomskem delu sem predstavila učinkovitost spremenjene konstrukcije električnega grelnika sanitarne vode, s katero so v podjetju želeli izboljšati energijsko učinkovitost grelnika. Problem pri preračunu in merjenju energije učinkovitosti predstavlja mešanje hladne vode, ki vstopa v grelnik ter vroče vode v grelniku. To so v podjetju želeli odpraviti s konstrukcijo usmerjevalnika toka hladne vode. Izvedla sem dve časovno odvisni simulaciji z usmerjevalnikom, pri katerih sem predpisala različna pretoka hladne vode, ki vstopa v grelnik. Na podlagi pridobljenih rezultatov sem zaključila, da je pri takšni prostornini grelnika usmerjevalnik toka hladne vode učinkovita rešitev zgolj pri majhnem pretoku.
Keywords:električni grelec sanitarne vode, numerična simulacija, tokovno-toplotno polje
Place of publishing:Maribor
Place of performance:Maribor
Publisher:[M. Umbreht]
Year of publishing:2020
Number of pages:VIII, 41 f.
PID:20.500.12556/DKUM-77192 New window
UDC:519.876.5(043.2)
COBISS.SI-ID:43568131 New window
NUK URN:URN:SI:UM:DK:22G90DPA
Publication date in DKUM:22.09.2020
Views:967
Downloads:39
Metadata:XML DC-XML DC-RDF
Categories:KTFMB - FS
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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:20.08.2020

Secondary language

Language:English
Title:Numerical simulation of flow-thermal field of water in an electric water heater
Abstract:I presented the effectiveness of a construction change inside an electric water heater. The change was implemented to improve the energy efficiency of the water heater. The cold water which flows into the heater mixes with the hot water already inside it, which causes problems with measuring and calculating the energy efficiency. The company therefore designed an element to direct the flow of water inside the water heater. I performed two transient simulations in which I prescribed different mass flows. The results showed that the solution is only effective at small mass flows due to the small volume of the heater.
Keywords:electric water heater, numerical simulation, flow-thermal field


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