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Приказ резултата 31-40 од 45
Optimal airfoil design and wing analysis for solar-powered high altitude platform station
(Univerzitet u Beogradu - Institut za nuklearne nauke Vinča, Beograd, 2022)
The ability of flying continuously over prolonged periods of time has become target of numerous research studies performed in recent years in both the fields of civil aviation and unmanned drones. High altitude platform ...
Investigation of thermal and dimensional behavior of 3-D printed materials using thermal imaging and 3-D scanning
(Beograd : Institut za nuklearne nauke Vinča, 2023)
Fused deposition modeling is one of the most widely used 3-D printing technologies, among other additive manufacturing processes, because it is easy to use,
can produce parts faster, and the cost of the finished part is ...
Two-component propellant grain for rocket motor combustion analysis and geometric optimization
(Univerzitet u Beogradu - Institut za nuklearne nauke Vinča, Beograd, 2022)
The paper considers utilization of rocket motor propellant grains that consist of two propellants. The idea is to achieve approximately neutral burning using an outer surface inhibited cylindrical shape and complex contact ...
Assessment of synergistic effect on performing the co-pyrolysis process of coal and waste blends based on thermal analysis
(Univerzitet u Beogradu - Institut za nuklearne nauke Vinča, Beograd, 2022)
The preliminary thermogravimetric studies of co-pyrolyzed low rank coals (lignites Kostolac and Kolubara) with waste materials (spent coffee ground and waste rubber granulate) in a form of blends have been performed. Thermal ...
Initial development of the hybrid semielliptical-dolphin airfoil
(Univerzitet u Beogradu - Institut za nuklearne nauke Vinča, Beograd, 2022)
Iosif Taposu has formulated a mathematical model and generated a family of air-foils whose geometry resembles the dolphin shape. These airfoils are characterized by a sharp leading edge and experiments have proven that ...
Validation of numerical models for prediction of pressure drop in high capacity long distance lignite fly ash pneumatic conveying
(Beograd : Institut za nuklearne nauke Vinča, 2023)
This paper will validate two basic concepts of numerical models for prediction of
pressure change along the transport pipeline in the case of long distance and
high capacity lignite ash pneumatic conveying. Application ...
ASSESSING THE IMPACT OF SPECIFIC WEIGHT OF DIFFERENT-SIZED PARTICLES ON OPERATIONAL PERFORMANCE OF COAL PREPARATION PLANT
(Vinča Institute of Nuclear Sciences, Belgrade, Serbia, 2022)
In case of firing pulverized coal in power steam boiler certain fuel preparation process has to be taken in order to ensure stable and optimal combustion in boil-er furnace. Before entering furnace low caloric coal is ...
Analysis of parameters influencing the pressure and temperature distribution in the gun bore evacuator
(Univerzitet u Beogradu - Institut za nuklearne nauke Vinča, Beograd, 2023)
The purpose of a gun bore evacuator on the turret-mounted gun barrel is to prevent the entry of the gaseous products of gun propellant combustion into the turret compartment of the vehicle after the breech block opening. ...
POSSIBILITIES OF STEAM BOILER PROCESS OPTIMIZATION IN THE TPP UGLJEVIK
(Vinča Institute of Nuclear Sciences, Belgrade, Serbia, 2022)
The paper presents a technical solution for modernization with the aim of increasing the efficiency of the steam boiler of TPP Ugljevik, which implies the reorganization of the combustion system. More efficient operation ...
Influencing factors on electricity consumption of electric bus in real operating conditions
(Institut za nuklearne nauke Vinča, 2023)
The research of influencing factors on the electricity consumption of electric buses Higer KLQ6125GEV3 in real working conditions is the result of experimental measurements conducted on the EKO 1 line in Belgrade over a ...