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undergraduate thesis
Neidealno strujanje u modelnim cijevima
Zagreb: University of Zagreb, Faculty of Chemical Engineering and Technology, 2019. urn:nbn:hr:149:470023
Barić, Martina
University of Zagreb
Faculty of Chemical Engineering and Technology

Institutional repository: Repository of Faculty of Chemical Engineering and Technology University of Zagreb

Cite this document

Barić, M. (2019). Neidealno strujanje u modelnim cijevima (Undergraduate thesis). Zagreb: University of Zagreb, Faculty of Chemical Engineering and Technology. Retrieved from https://urn.nsk.hr/urn:nbn:hr:149:470023

Barić, Martina. "Neidealno strujanje u modelnim cijevima." Undergraduate thesis, University of Zagreb, Faculty of Chemical Engineering and Technology, 2019. https://urn.nsk.hr/urn:nbn:hr:149:470023

Barić, Martina. "Neidealno strujanje u modelnim cijevima." Undergraduate thesis, University of Zagreb, Faculty of Chemical Engineering and Technology, 2019. https://urn.nsk.hr/urn:nbn:hr:149:470023

Barić, M. (2019). 'Neidealno strujanje u modelnim cijevima', Undergraduate thesis, University of Zagreb, Faculty of Chemical Engineering and Technology, accessed 20 December 2024, https://urn.nsk.hr/urn:nbn:hr:149:470023

Barić M. Neidealno strujanje u modelnim cijevima [Undergraduate thesis]. Zagreb: University of Zagreb, Faculty of Chemical Engineering and Technology; 2019 [cited 2024 December 20] Available at: https://urn.nsk.hr/urn:nbn:hr:149:470023

M. Barić, "Neidealno strujanje u modelnim cijevima", Undergraduate thesis, University of Zagreb, Faculty of Chemical Engineering and Technology, Zagreb, 2019. Available at: https://urn.nsk.hr/urn:nbn:hr:149:470023

Metadata
TitleNeidealno strujanje u modelnim cijevima
Title (english)Nonideal flow in the model tubes
AuthorMartina Barić
MentorVanja Kosar (mentor)
Committee memberVanja Kosar (predsjednik povjerenstva)
Committee memberKrunoslav Žižek (član povjerenstva)
Committee memberEmi Govorčin Bajsić (član povjerenstva)
GranterUniversity of Zagreb
Faculty of Chemical Engineering and Technology
Zagreb
Defense date and country2019-09-18, Croatia
Scientific / art field,
discipline and subdiscipline		TECHNICAL SCIENCES
Chemical Engineering
Abstract
U ovom radu istraživala se raspodjela vremena zadržavanja u tri različite cijevi (ravnoj cijevi, cijevi sa staklenim kuglicama te spiralnoj cijevi) koje opisuju hidrodinamiku strujanja u različitim tipovima cijevnih reaktora. Raspodjelu vremena zadržavanja potrebno je odrediti kako bi se na osnovu nje moglo utvrditi odstupanje promatranog sustava od idealnog strujanja. Eksperimentalni podaci dobiveni su unošenjem trasera koji predstavlja impulsni poremećaj u sustav te mjerenjem odziva na impulsni poremećaj. Obradom eksperimentalnih podataka dobivene su različite vrijednosti vremena zadržavanja i disperzijskog broja u trima cijevima. Rezultati su pokazali kako se dodatkom manjeg volumena trasera ostvaruje idealni impulsni poremećaj te manja disperzija. Pri najmanjem protoku disperzija je najveća dok se ona smanjuje povećanjem protoka. Brzina strujanja u cijevima, dužina cijevi, geometrijski oblik cijevi, volumen trasera te preciznost izvođenja eksperimenta ključni su faktori koji utječu na rezultate
Abstract (english)
In this work the distribution of residence time in three different tubes (flat tube, glass tube and spiral tube) that describe the hydrodynamics of flow in different types of tubular reactors were explored. The distribution of the dwell time must be determined in order to determine the deviation of the observed system from the ideal flow. Experimental data were obtained by inserting a tracer representing impulse disturbance into the system and measuring the response to impulse disturbance. The processing of experimental data yielded different values of residence time and dispersion number in the three tubes. The results showed that the addition of a smaller tracer volume produces an ideal impulse disturbance and a smaller dispersion. At the lowest flow rate, the dispersion is highest while it is decreasing as the flow rate increases. The flow velocity in the tubes, the length of the tubes, the geometric shape of the tubes, the volume of the tracer, and the precision of the experiment are the key factors that influence the results.
Keywords
Keywords (english)
Languagecroatian
URN:NBNurn:nbn:hr:149:470023
Study programmeTitle: Materials Science and Engineering - Undergraduate study
Study programme type: university
Study level: undergraduate
Academic / professional title: sveučilišni/a prvostupnik/ prvostupnica (baccalaureus/baccalaurea) inženjer/inženjerka kemijskog inženjerstva (sveučilišni/a prvostupnik/ prvostupnica (baccalaureus/baccalaurea) inženjer/inženjerka kemijskog inženjerstva)
Type of resourceText
File originBorn digital
Access conditionsAccess restricted to students and staff of home institution
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Created on2023-02-13 12:24:29