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Št. zadetkov: 8
Eksperimentalna analiza mehurčkastega vrenja v bazenu na tankih kovinskih folijah z nanosom grafenskega oksida
Matevž Vodopivec, Iztok Golobič, Matevž Zupančič
Diplomsko delo
Oznake: diplomske naloge;mehurčkasto vrenje;grafenski oksid;nukleacijska mesta;gostota toplotnega toka;vrenje v bazenu;omočljivost;
Mehurčkasto vrenje je eden izmed najučinkovitejših mehanizmov prenosa toplote in je široko raziskovano na področjih, kjer se zahteva visoka odvedena gostota toplotnega toka pri nizkih pregretjih površine. V tem delu smo eksperimentalno ovrednotili proces vrenja vode na tankih kovinskih folijah z nan ...
Leto: 2022 Vir: Fakulteta za strojništvo (UL FS)
Pool-boiling performance on thin metal foils with graphene-oxide-nanoflake deposit
Tadej Bregar, Matevž Vodopivec, Tim Pečnik, Matevž Zupančič, Iztok Golobič
Izvirni znanstveni članek
Oznake: grafenov oksid;nano premazi;mehurčkasto vrenje;lokalna gostota toplotnega toka;gostota aktivnih nukleacijskih mest;graphene oxide;nanocoating;nucleate boiling;local heat flux;nucleation site density;
The pool-boiling performance of water on thin metal foils with graphene-oxide deposition was studied. The boiling performance was evaluated both on fully coated surfaces, achieved by spin-coating, and surfaces with a laser-textured nucleation site, into which graphene oxide was added via drop-castin ...
Leto: 2022 Vir: Fakulteta za strojništvo (UL FS)
Modal heat transfer dynamics during flow boiling of dielectric fluids on laser-textured conical microcavities
Donato Fontanarosa, Matevž Vodopivec, Sylvie Castagne, Matevž Zupančič, Maria Rosaria Vetrano
Izvirni znanstveni članek
Oznake: artificial nucleation sites;conical cavities;flow boiling;femtosecond laser texturing;heat transfer dynamics;
The present work investigates flow boiling heat transfer enhancement on functionalised surfaces featuring arrays of femtosecond-laser-textured microcavities manufactured on 100 µm thick stainless steel foils. The influence of cavity aspect ratio and cavity pitch is examined using a novel diagnostic ...
Leto: 2026 Vir: Fakulteta za strojništvo (UL FS)
Experimental investigation of the impact of surface tension and artificial nucleation site geometry on the bubble growth
Matevž Vodopivec, MG Berhe, Mattia Bucci, Matevž Zupančič, Donato Fontanarosa, Matic Može, S. Castagnet, Iztok Golobič, Maria Rosaria Vetrano
Objavljeni znanstveni prispevek na konferenci
Oznake: mehurčkasto vrenje;površinska napetost;mikrojamice;femtosekundni laserji;funkcionalizacija površin;nucleate boiling;surface tension;microcavities;femtosecond lasers;surface functionalization;
The present work provides an experimental assessment of the impact of liquid surface tension on the single bubble dynamics generated by artificial nucleation cavities during boiling in a quiescent liquid. De-ionized water is used with and without added non-ionic surfactant (Dynol 800) to modify the ...
Leto: 2024 Vir: Fakulteta za strojništvo (UL FS)
Enhanced nucleate boiling of Novec 649 on thin metal foils via laser-induced periodic surface structures
Matevž Zupančič, Donato Fontanarosa, Matic Može, Mattia Bucci, Matevž Vodopivec, Balasubramanian Nagarajan, Maria Rosaria Vetrano, Sylvie Castagne, Iztok Golobič
Izvirni znanstveni članek
Oznake: nucleate boiling;heat transfer enhancement;dielectric fluids;thin metallic foils;laser microstructuring;surface structures;
The low boiling temperature of dielectric fluids makes them suitable for satisfying the cooling requirements of advanced high-energy-density devices commonly found in microelectronics. However, the high wettability/wickability of such coolants significantly affects the boiling dynamics, opening new ...
Leto: 2024 Vir: Fakulteta za strojništvo (UL FS)
Experimental investigation of single bubble dynamics on a novel high aspect ratio conical micro-cavity in saturated pool boiling: Impact of surface tension
Matevž Vodopivec, Donato Fontanarosa, Mulugeta Gebrekiros Berhe, Mattia Bucci, Matic Može, Matevž Zupančič, Sylvie Castagne, Iztok Golobič, Maria Rosaria Vetrano
Izvirni znanstveni članek
Oznake: pool boiling;femtosecond laser texturing;bubble dynamics;surface tension;artificial nucleation site;
The present work experimentally explores the role of the surface tension in the single DI water vapor bubble dynamics in the presence of a novel conical microcavity produced via femtosecond laser texturing. An organic surfactant was used to reduce the surface tension of DI water by dissolving it in ...
Leto: 2025 Vir: Fakulteta za strojništvo (UL FS)
Pogovor o knjigi Dieterja A. Binderja Skrivna Družba - Zgodovina in simbolika prostozidarjev
prof. dr. Peter Vodopivec , Matevž Košir , Filozofska fakulteta
Video in druga učna gradiva
Oznake: arts;literature
Dejstvo, da obstajajo združenja, grupacije, moške zveze, ki se zavedno zapirajo vase, je spodbujalo in vedno znova spodbuja domneve, namigovanje in v najslabšem primeru teorije o zaroti, pravi v svojem predgovoru avtor knjige Dieter A. Binder. Prostozidarji naj bi bili odgovorni za to ali ono uganko ...
Leto: 2009 Vir: videolectures.net
Long-term study of zooplankton biomass in the south- eastern part of the Gulf of Trieste (Adriatic sea)
Jan Malej, Tjaša Kogovšek, Martin Vodopivec, Janja Francé, Patricija Mozetič, Matevž Malej, Alenka Malej
Izvirni znanstveni članek
Oznake: net zooplankton;dry mass;time series;chlorophyll a;jellyfish blooms;
V prispevku poročamo o rezultatih zooplanktonske biomase v Tržaškem zalivu, ki smo jo merili z upo- rabo standardizirane metode za suho maso v več kot štirih desetletjih. V tem obdobju (1974–2019) smo za vzorčenje zooplanktona uporabljali mreže s primerljivo velikostjo okenc (200 – 250 µm) kar zagot ...
Leto: 2025 Vir: Repozitorij Univerze v Ljubljani (RUL)
Št. zadetkov: 8
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