diplomsko delo
Tjaša Kišek (Author), Milan Marčič (Mentor), Zvonko Višnjič (Co-mentor)

Abstract

V diplomski nalogi smo primerjali uparjalnik proizvajalca Sest z uparjalnikom proizvajalca Luvata. Na prototipu smo naredili dve meritvi po standardu SIST EN 16147. Izračunali smo energijsko učinkovitost (v nadaljevanju COP), merilno negotovost COP ter energijski razred sanitarne toplotne črpalke. COP sanitarne toplotne črpalke z uparjalnikom Luvata je 3,33, z uparjalnikom Sest pa 3,52. Z obema uparjalnikoma je dosežen energijski razred A+. Ugotovili smo, da je uparjalnik Sest ustrezna alternativa obstoječemu uparjalniku Luvata, saj smo z njim dosegli celo višjo energijsko učinkovitost. Razširjena merilna negotovost COP U(k=2)=±0,0548, kar pomeni 95,45 % verjetnost, da se prava vrednost nahaja znotraj podanega intervala.

Keywords

toplotna črpalka;toplotni izmenjevalec;uparjalnik;grelno število;merilna negotovost;pregretje;podhladitev;uparjanje;kondenzacija;diplomske naloge;

Data

Language: Slovenian
Year of publishing:
Typology: 2.11 - Undergraduate Thesis
Organization: UM FS - Faculty of Mechanical Engineering
Publisher: [T. Kišek]
UDC: 621.577.048(043.2)
COBISS: 19157014 Link will open in a new window
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Other data

Secondary language: English
Secondary title: Experimental comparison of two evaporators with respect to the effectiveness of sanitary air-water heat pump
Secondary abstract: In our thesis we compared the evaporator from producer Sest with the evaporator from producer Luvata. We made two measurements on the prototype according to standard SIST EN 16147. We calculated the energy efficiency (COP), measuring uncertainty of COP and the energy class of the heat pump for sanitary water. The sanitary heat pump with evaporator Luvata has a COP=3,33, with the evaporator from Sest it has a COP=3,52. We achieved an energy class of A+ with both evaporators. We found that the Sest evaporator is a viable alternative to the Luvata evaporator, because we achieved an even higher energy efficiency. The extended measuring uncertainty of COP U(k=2)=±0,0548, which means a 95,45 % probability, that the correct value is inside the given interval.
Secondary keywords: heat pump;heat exchanger;evaporator;coefficient of performance;measurement uncertainty;overheating;supercooling;evaporation;condensation;
URN: URN:SI:UM:
Type (COBISS): Bachelor thesis/paper
Thesis comment: Univ. v Mariboru, Fak. za strojništvo
Pages: XIII, 57 f.
ID: 8887563