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Title:Optimizacija prenosnikov toplote v toplotnih črpalkah: teorija in meritve
Authors:Čontala, Matej (Author)
Ramšak, Matjaž (Mentor) More about this mentor... New window
Hribernik, Aleš (Co-mentor)
Files:.pdf MAG_Contala_Matej_2012.pdf (2,76 MB)
 
Language:Slovenian
Work type:Master's thesis/paper (mb22)
Typology:2.09 - Master's Thesis
Organization:FS - Faculty of Mechanical Engineering
Abstract:V magistrskem delu sem obravnaval optimizacijo velikosti toplotnih prenosnikov v toplotni črpalki. Pri konstantnih obratovalnih pogojih, to je temperatura vode in slanice v uparjalniku in kondenzatorju, ter izbranem kompresorju sem analiziral različne velikosti toplotnih prenosnikov. Analiza tlačnih padcev je izvedena s teoretično-empiričnim izračunom, programskim paketom in meritvami. Primerjava rezultatov je pokazala odlično ujemanje. Izbira manjšega toplotnega prenosnika vodi k manjšim investicijskim in večjim obratovalnim stroškom, izbira večjega pa ravno obratno. Cilj naloge je najti optimalno velikost toplotnega prenosnika glede na investicijske in obratovalne stroške.
Keywords:toplotna črpalka, grelno število, ploščni prenosnik toplote, tlačni padec, eksperiment
Year of publishing:2012
Publisher:[M. Čontala]
Source:Maribor
UDC:621.565.93/.95(043.3)
COBISS_ID:16446742 Link is opened in a new window
NUK URN:URN:SI:UM:DK:5LRSFZIP
Views:2020
Downloads:402
Metadata:XML RDF-CHPDL DC-XML DC-RDF
Categories:KTFMB - FS
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Secondary language

Language:English
Title:Optimization of heat exchangers in heat pumps: theory and experiment
Abstract:The master thesis discusses the optimization of heat exchangers in heat pumps. I analyzed different sizes of heat exchangers at constant operating conditions, the temperature of water and salt-water in the evaporator and condenser with a specific compressor. The analysis was done with theoretical-empirical calculations, a software package and experimentation. The comparison showed really good matching. The choosing of a smaller heat exchanger led to lower investment and higher operating costs and vice versa. The objective of the thesis is to find the optimal size of a heat exchanger according to investment and operating costs.
Keywords:heat pump, coefficient of performance, plate heat exchanger, pressure drop, experiment


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