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Primerjava cevno-ploščnega in Roll bond uparjalnika v gospodinjskem hladilniku
ID Kuhelj, Anja (Author), ID Poredoš, Alojz (Mentor) More about this mentor... This link opens in a new window, ID Kitanovski, Andrej (Comentor)

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MD5: 9916FD34EBB81A04C2D35F16C594E60B
PID: 20.500.12556/rul/f552b343-7b7c-42b5-9286-2b18ed1b2216

Abstract
Hladilnik je v gospodinjstvu naprava, ki ima eno največjih letnih rab električne energije, zato težimo k izboljšanju energetske učinkovitosti njegovih komponent. Obravnavali smo dve vrsti uparjalnika: cevno-ploščnega in Roll bond. Pri različnih temperaturah hladiva smo v stacionarnem stanju opazovali odveden toplotni tok iz uparjalnikov in ugotovili, da Roll bond odvede več toplote kot cevno-ploščni. S primerjavo meritev treh enakih uparjalnikov ene vrste smo ugotovili, da so odstopanja znotraj posamezne vrste majhna. Dokazali smo, da ventilator poveča prestop toplote med zrakom in notranjo plastično steno za okoli tretjino.

Language:Slovenian
Keywords:cevno-ploščni uparjalnik, Roll bond uparjalnik, prenos toplote, toplotna bilanca, moč uparjalnika, dinamični uparjalnik
Work type:Bachelor thesis/paper
Organization:FS - Faculty of Mechanical Engineering
Year:2017
PID:20.500.12556/RUL-95525 This link opens in a new window
Publication date in RUL:20.09.2017
Views:2192
Downloads:527
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Secondary language

Language:English
Title:Comparison between plate-tube and Roll bond evaporator in household refrigerator
Abstract:
Refrigerator is a household appliance which has one of the largest annual electricity consumptions, therefore we aim to improve energy efficience of its components. Two types of evaporators were discussed: plate-tube and Roll bond. At steady state and different entry temperatures of refrigerant, heat flow from evaporators was observed. Results show that more heat was removed with Roll bond than with plate-tube evaporator. Comparing results of three evaporators of same type showed that the deviations between them are small. It was proven that a fan increases convective heat transfer between air and inner plastic wall by about a third.

Keywords:plate-tube evaporator, Roll bond evaporator, heat exchange, heat balance, performance of evaporator, dynamic evaporator

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