magistrsko delo magistrskega študijskega programa II. stopnje Strojništvo
Aleksandar Kočoski (Author), Matevž Dular (Mentor), Martin Petkovšek (Co-mentor)

Abstract

Izven obsega negativnih učinkov, mikavnost spreobrnitve kavitirajočih tokov v koristne procese še naprej sproža nešteto radovednih prizadevanj. Eno teh sloni na hipotezi, da je v dovolj velikem in stabilnem superkavitacijskem mehurju možno vzdrževati razelektritve nizkotlačne hladne plazme, katere protimikrobne lastnosti predstavljajo izvirno metodo inaktivacije patogenov v kapljevinah. Pričujoče magistrsko delo obsega ekstenzivno eksperimentalno delo, v katerem je z načrtovanjem eksperimentov vzpostavljen in optimiziran stabilen mehur. Zgledi rezultatov kvalitativne vizualizacije ilustrirajo pojav, ki je dodatno kvantitativno obravnavan z metodologijo odzivnih površin za podrobnejšo pojasnitev dinamike superkavitacije. Predstavljena so prva opazovanja z implementacijo plazme v superkavitacijo take velikosti, izvedene so pilotne meritve generirane koncentracije vodikovega peroksida in podani so razmisleki za nadaljnje raziskave.

Keywords

magistrske naloge;superkavitacija;zožitev tipa Venturi;kavitacijsko število;načrtovanje eksperimentov;metodologija odzivnih površin;visokohitrostna vizualizacija;nizkotlačna hladna plazma;inaktivacija bakterij in virusov;

Data

Language: Slovenian
Year of publishing:
Typology: 2.09 - Master's Thesis
Organization: UL FS - Faculty of Mechanical Engineering
Publisher: [A. Kočoski]
UDC: 532.528:531.3(043.2)
COBISS: 169601539 Link will open in a new window
Views: 215
Downloads: 101
Average score: 0 (0 votes)
Metadata: JSON JSON-RDF JSON-LD TURTLE N-TRIPLES XML RDFA MICRODATA DC-XML DC-RDF RDF

Other data

Secondary language: English
Secondary title: The dynamics of supercavitation and the possibility of incorporating cold plasma inside it
Secondary abstract: Beyond the scope of negative effects, the allure of converting cavitating flows into useful processes continues to spark a myriad of curious pursuits. One of these is based on the hypothesis that in a sufficiently large and stable supercavitation bubble it is possible to maintain low-pressure cold plasma discharges, whose antimicrobial properties present a novel method of inactivating pathogens in liquids. This master’s thesis comprises extensive experimental work in which a stable bubble is achieved and optimised through design of experiments. Exemplary results of qualitative visualization illustrate the phenomenon, which is additionally quantitatively addressed employing the response surface methodology, elucidating in further detail the dynamics of supercavitation. The first observations with the implementation of plasma in supercavitation of such size are presented, pilot measurements of the generated hydrogen peroxide concentration are conducted and considerations for further research are laid out.
Secondary keywords: master thesis;supercavitation;Venturi type constriction;cavitation number;design of experiments;response surface methodology;high-speed visualization;low-pressure cold plasma;inactivation of bacteria and viruses;
Type (COBISS): Master's thesis/paper
Study programme: 0
Embargo end date (OpenAIRE): 1970-01-01
Thesis comment: Univ. Ljubljana, Fak. za strojništvo
Pages: XXVI, 104 str.
ID: 20034053
Recommended works:
, magistrsko delo magistrskega študijskega programa II. stopnje Strojništvo
, diplomsko delo visokošolskega strokovnega študijskega programa I. stopnje
, no subtitle data available
, zaključna naloga Razvojno raziskovalnega programa I. stopnje Strojništvo
, diplomsko delo