20.500.12556/DKUM-54092 Eksperimentalna primerjava dveh uparjalnikov glede na učinkovitost sanitarne toplotne črpalke zrak-voda Experimental comparison of two evaporators with respect to the effectiveness of sanitary air-water heat pump 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. 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. Toplotna črpalka toplotni izmenjevalec uparjalnik grelno število merilna negotovost pregretje podhladitev uparjanje kondenzacija. Heat pump heat exchanger evaporator coefficient of performance measurement uncertainty overheating supercooling evaporation condensation. true true false [T. Kišek] Slovenski jezik Angleški jezik Diplomsko delo/naloga 2015-08-20 22:48:46 2015-10-27 09:01:03 2022-06-04 03:10:37 2021-05-09 03:33:17 2015 0 Maribor 0 0000-00-00 NiDoloceno NiDoloceno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 621.577.048(043.2) 19157014 URN:SI:UM:DK:3KHRAA2F UN_Kisek_Tjasa_2015.pdf UN_Kisek_Tjasa_2015.pdf 1 990497FC2FA39668706A96ED568FC127 486f6916ff1ebb7c97ed057cb3bcbeda0d37b69579c74a391cac040ca30e8717 ab90e6ec-7c07-11eb-bb7a-00155d0001ca https://dk.um.si/Dokument.php?lang=slv&id=80531 Fakulteta za strojništvo 0 0 0