A5087024483- Particle Dynamics in Fluid Flows
- Heat and Mass Transfer in Porous Media
- Nuclear and radioactivity studies
- Graphite, nuclear technology, radiation studies
- Granular flow and fluidized beds
- Heat Transfer and Optimization
- Minerals Flotation and Separation Techniques
- Electrohydrodynamics and Fluid Dynamics
- Proteins in Food Systems
- Catalysis and Hydrodesulfurization Studies
- Plant Surface Properties and Treatments
- Silk-based biomaterials and applications
- Nanocomposite Films for Food Packaging
- Heat Transfer Mechanisms
- Bee Products Chemical Analysis
- Nuclear Materials and Properties
- Cyclone Separators and Fluid Dynamics
- Catalytic Processes in Materials Science
- Microencapsulation and Drying Processes
- Nanofluid Flow and Heat Transfer
- Electrospun Nanofibers in Biomedical Applications
- Petroleum Processing and Analysis
- Innovative Microfluidic and Catalytic Techniques Innovation
University of Belgrade
2001-2024
In this study, in order to develop zein-based, edible, functional food-contact materials different forms incorporating sage extract (10, 20, and 30%), solvent casting electrospinning were employed. The study aimed assess the effects of applied techniques extract's incorporation on materials' properties. generated continuous compact films, where provided more homogenous surfaces. resulted non-woven mats composed ribbon-like fibers range 1.275-1.829 µm, while thinner branched fibers. results...
The aim of this work was the experimental investigation particle friction factor for air flow through packed bed particles at ambient and elevated temperatures. experiments were performed by measuring pressure drop across bed, heated to desired temperature hot air. Glass spherical seven different diameters used. range flowing from 20?C 350?C voidages 0.3574 0.4303. obtained results correlated using a number available literature correlations. overall best fit all data Ergun [1] equation, with...
<p>The experimental values of the friction factor (fp) at ambient and elevated temperatures as well heat transfer coefficient (hp) were used to establish analogy between momentum in gas-solid packed beds monosized spherical glass particles, jH=fp/22 or jHε=fp/50. Also, Chilton-Colburn type momentum-mass was confirmed. These findings are valid for range modified Reynolds number Re’p≈20-130. The experiments related fp performed by...
An experimental study has been carried out investigating the fluidization behavior of a bubble column with bottom magnetic particle bed controlled by an external transverse field. The magnetization-first/gas-scanning mode was applied, at up to 45 kA m-1 field intensity, liquid superficial velocities 20 mm s-1 and gas flowrate 8 m3 h-1. Particle fractions two different sizes 1 were used. focus both on three-phase expansion playing role distributor holdup abovepositioned two-phase section, as...
The present work concerns an experimental study on heat transfer in gas-solid fluidized bed of coarse (Geldart D) particles to a larger immersed sphere at high superficial velocities from 2 5.5 Umf. coefficient was determined by measuring the temperature test during its heating range 65–175 °C. spheres different sizes and materials were utilized. For given gas-particles system flow regime changes rapidly growing bubbles turbulent fluidization velocity Uc ≈ 3Umf. It has been found that...
Traditional methods of processing evaporator concentrates from Nuclear Power Plants are evaporation and cementation. These allow transforming a liquid radioactive waste into more inert form, suitable for final disposal. To assess the safety disposal mortar-waste composition, leaching 137Cs immobilized concentrate surrounding fluid has been studied. Leaching tests were carried out in accordance with method recommended by IAEA. Curing conditions curing time prior to commencing test critically...
Re/Pd-TiO2/SiO2 aerogel catalysts were synthesized by using a sol-gel method and supercritical drying in excess solvent investigated the reaction of hydrodesulphurisation (HDS) dibenzothiophene (DBT) 4,6-dimethyl (4,6-DMDBT). Both Re/Pd catalysts, obtained with without use mesitylene synthesis step, have shown increased conversions up to 70 % desulphurization 4,6-DMDBT, when compared conventional Co/Mo hydroprocessing catalysts. This observation is importance for conversion highly refractory...