teorija in meritve
Matej Čontala (Author), Matjaž Ramšak (Mentor), Aleš Hribernik (Co-mentor)

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;

Data

Language: Slovenian
Year of publishing:
Source: Maribor
Typology: 2.09 - Master's Thesis
Organization: UM FS - Faculty of Mechanical Engineering
Publisher: [M. Čontala]
UDC: 621.565.93/.95(043.3)
COBISS: 16446742 Link will open in a new window
Views: 2515
Downloads: 463
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Other data

Secondary language: English
Secondary title: Optimization of heat exchangers in heat pumps: theory and experiment
Secondary 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.
Secondary keywords: heat pump;coefficient of performance;plate heat exchanger;pressure drop;experiment;
URN: URN:SI:UM:
Type (COBISS): Master's thesis/paper
Thesis comment: Univ. v Mariboru, Fak. za strojništvo
Pages: XI, 56 f.
Keywords (UDC): applied sciences;medicine;technology;uporabne znanosti;medicina;tehnika;engineering;technology in general;inženirstvo;tehnologija na splošno;mechanical engineering in general;nuclear technology;electrical engineering;machinery;strojništvo;pneumatic energy;machinery and tools;refrigeration;pnevmatska energija;stroji in orodja;ohlajevanje;
ID: 995413