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Parametrična analiza obratovalnih karakteristik ploščnih prenosnikov toplote
Klobčar, Rok (Author), Sekavčnik, Mihael (Mentor) More about this mentor... This link opens in a new window

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Abstract
V magistrskem delu smo predstavili zgradbo, delovanje in metode preračuna ploščnega prenosnika toplote. Z IR kamero smo izvedli eksperimentalne meritve temperaturnega polja na delu prenosnika toplote, kjer sekundarni oziroma ogrevani medij izstopa. Izdelali smo poenostavljen 3D model prenosnika in s pomočjo programske opreme Ansys simulirali realna obratovalna stanja. Raziskali smo, kako na temperaturno polje v delu izstopa hladne vode vpliva spreminjanje pretoka medijev. Ugotovili smo kvalitativno ujemanje rezultatov meritev in simulacij. Prikazali smo rezultate parametrične analize in analizirali vzroke za temperaturno razslojenost toka v izstopnem priključku.

Language:Slovenian
Keywords:ploščni prenosnik toplote, parametrična analiza, realna obratovalna stanja, numerični model, temperaturno polje, temperaturna razslojenost
Work type:Master's thesis/paper (mb22)
Organization:FS - Faculty of Mechanical Engineering
Year:2017
Views:411
Downloads:68
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Secondary language

Language:English
Title:Parametric Analysis of Working Characteristics of Plate Heat Exchangers
Abstract:
In this master's thesis we analyzed the structure, working principles and calculation methods of plate heat exchanger. With the usage of IR camera we performed experimental measurements of the temperature field on the working plate heat exchanger and focused on the part where the secondary flow exits the heat exchanger. Also we created a simplified 3D model of the same type of the heat exchanger with the purpose of simulating the same working conditions as with the experiments. By using a computer program Ansys we were able to observe and analyze the thermal field while changing the values of the fluid flow. We have found out there was a qualitative match between measurement results and simulation results. At the end of the thesis we showed the results of our parametric analysis and discussed the reasons for thermal stratification in the secondary flow in the part of the exiting connection.

Keywords:plate heat exchanger, parametric analysis, real working conditions, numerical model, thermal field, thermal stratification

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