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Title:Računalniška simulacija visokotemperaturnih toplotnih črpalk za namene ogrevanja in hlajenja : diplomsko delo visokošolskega strokovnega študijskega programa I. stopnje
Authors:ID Ljubec Zajko, Leon (Author)
ID Goričanec, Darko (Mentor) More about this mentor... New window
ID Gruber, Sven (Comentor)
Files:.pdf VS_Ljubec_Zajko_Leon_2025.pdf (4,28 MB)
MD5: F0A930AB9AD1A2CEC1DA57CAF2FE6180
 
.zip VS_Ljubec_Zajko_Leon_2025.zip (107,88 KB)
MD5: EADA1526DE6F37D052D215E5DDF0E8AF
 
Language:Slovenian
Work type:Bachelor thesis/paper
Typology:2.11 - Undergraduate Thesis
Organization:FKKT - Faculty of Chemistry and Chemical Engineering
Abstract:Diplomsko delo prikazuje študijo o visokotemperaturnih toplotnih črpalkah. Delali smo simulacije s tremi različnimi hladilnimi sredstvi, te so R717, R1234ze(E) in R1233ze(E), ki so imeli temperaturo od 20°C do 45°C, s katerimi smo segrevali vodo od 60°C do 85°C. Ugotovili smo, da je bila učinkovitost R717 najboljša pri vseh temperaturah. COP je pri hladilnem sredstvu R717 naraščal eksponentno, pri R1233zd(E) in R1234ze(E) pa je ta vrednost naraščala bolj linearno. Naši rezultati učinkovitosti toplotnih črpalk in teh različnih hladilnih sredstvih so sovpadali s vredsnostmi, ki jih imajo komercialne toplotne črpalke, pri doseganju teh temperatur. Naši rezultati hladilnih sredstev so tudi sovpadali z njihovimi P-H diagrami. Naredili smo tudi ekonomsko analizo in smo ugotovili, da se začetna investicija v toplotno črpalko povrne v 5-em ali 6em letu. Saj je so toplotne črpalke zelo ekonomične.
Keywords:Toplotna črpalka, COP, hladilno sredstvo, ogrevanje, hlajenje.
Place of publishing:Maribor
Place of performance:Maribor
Publisher:[L. Ljubec Zajko]
Year of publishing:2025
Number of pages:1 spletni vir (1 datoteka PDF (IX, 37 str.))
PID:20.500.12556/DKUM-93410 New window
UDC:004.94:621.577(043.2)
COBISS.SI-ID:255356931 New window
Publication date in DKUM:24.09.2025
Views:318
Downloads:20
Metadata:XML DC-XML DC-RDF
Categories:KTFMB - FKKT
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Licences

License:CC BY-SA 4.0, Creative Commons Attribution-ShareAlike 4.0 International
Link:http://creativecommons.org/licenses/by-sa/4.0/
Description:This Creative Commons license is very similar to the regular Attribution license, but requires the release of all derivative works under this same license.
Licensing start date:24.06.2025

Secondary language

Language:English
Title:Computer simulation of high-temperature heat pumps for heating and cooling
Abstract:The thesis presents a study on high-temperature heat pumps. We performed simulations with three different refrigerants, R717, R1234ze(E), and R1233ze(E), at temperatures ranging from 20°C to 45°C, heating water from 60°C to 85°C. We found that the effectiveness of R717 was the best at all temperatures. The COP increased exponentially with R717 refrigerant, but more linearly with R1233zd(E) and R1234ze(E). Our efficiency results for heat pumps and these different refrigerants matched the values of commercial heat pumps in achieving these temperatures. Our results for refrigerants also matched their P-H diagrams. We also did an economic analysis and found that the initial investment in the heat pump pays for itself in 5 or 6 years. Heat pumps are very economical.
Keywords:Heat pump, COP, refrigerant, heating, cooling


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