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Title:Izdelava hladilnika s peltierjevim elementom za določanje točke zamrznitve snovi
Authors:ID Kosi, Danijel (Author)
ID Ravnik, Jure (Mentor) More about this mentor... New window
ID Zadravec, Matej (Comentor)
Files:.pdf UN_Kosi_Danijel_2017.pdf (3,04 MB)
MD5: F209B5A068907E422F0278DE3D762C95
PID: 20.500.12556/dkum/21e20649-e0f2-4394-ab55-e2bc1f4bf09e
 
Language:Slovenian
Work type:Bachelor thesis/paper
Typology:2.11 - Undergraduate Thesis
Organization:FS - Faculty of Mechanical Engineering
Abstract:V diplomski nalogi je obravnavano določanje točke popolne zamrznitve materiala pri procesu liofilizacije. Točka popolne zamrznitve materiala je trenutek, v katerem vsa snov preide iz tekočega v trdno stanje. Spremljanje poteka zamrzovanja in določitev časa zamrzovanja sta izvedena s pomočjo meritve električne upornosti, meritve temperature in spremljanja zvočnih emisij. Meritev upornosti je izvedena z izmeničnim napajanjem bakrenih elektrod, meritev temperature pa s pomočjo objemnega termoelementa. Zvočne emisije so zajete s pomočjo dveh mikrofonov. Vse meritve so povezane v celoto s pomočjo programske opreme NI LabVIEW. Iz narisanih potekov merjenih veličin v odvisnosti od časa je določen čas popolne zamrznitve materiala.
Keywords:Zamrzovanje, liofilizacija, merjenje temperature, spremljanje električne upornosti, zajemanje zvoka z mikrofonom, LabVIEW
Place of publishing:Maribor
Publisher:[D. Kosi]
Year of publishing:2017
PID:20.500.12556/DKUM-67968 New window
UDC:621.565.9.011(043.2)
COBISS.SI-ID:20841494 New window
NUK URN:URN:SI:UM:DK:5FSGHFC9
Publication date in DKUM:04.10.2017
Views:1509
Downloads:311
Metadata:XML DC-XML DC-RDF
Categories:KTFMB - FS
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Licences

License:CC BY 4.0, Creative Commons Attribution 4.0 International
Link:http://creativecommons.org/licenses/by/4.0/
Description:This is the standard Creative Commons license that gives others maximum freedom to do what they want with the work as long as they credit the author.
Licensing start date:04.09.2017

Secondary language

Language:English
Title:Manufacturing of a cooling device based on peltier element for determination of material freeze point
Abstract:This diploma deals with determination of substance total freezing point in lyophilisation process. Substance total freezing point is a moment, when all substance entirely freezes and are all parts of substance in solid state. Observation of freezing process is done with electrical resistance measurement, temperature measurement and ice cracking sound measurement. Electrical resistance measurement is carried out with two copper electrodes, temperature measurement with surface thermocouple and sound measurement with two microphones. NI LabVIEW was used for data acquisition. Total freezing point time can be determined out of measured quantities versus time plots.
Keywords:Freezing, lyophilisation, temperature measurement, electrical resistance observation, ice cracking sound monitoring, LabVIEW


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