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Приказ резултата 91-98 од 98
Thermal history and stress state of a fresh steam-pipeline influencing its remaining service life
(Univerzitet u Beogradu - Institut za nuklearne nauke Vinča, Beograd, 2011)
The service life of thick-walled power plant components exposed to creep, as is the case with pipelines of fresh- and reheated steam, depend on the exhaustion rate of the material. Plant operation at elevated temperatures ...
Rectified ethanol production cost analysis
(Univerzitet u Beogradu - Institut za nuklearne nauke Vinča, Beograd, 2011)
This paper deals with the impact of the most important factors of the total production costs in bioethanol production. The most influential factors are: total investment costs, price of raw materials (price of biomass, ...
Estimation of laser-Doppler anemometry measuring volume displacement in cylindrical pipe flow
(Univerzitet u Beogradu - Institut za nuklearne nauke Vinča, Beograd, 2012)
Laser-Doppler anemometry application in measurements of the 3-D swirl turbulent flow velocity in the cylindrical pipe, behind the axial fan, have been analysed. This paper presents a brief overview of uncertainty sources ...
The characteristics of combustion process of diesel engine using vegetable oil methyl esters
(Univerzitet u Beogradu - Institut za nuklearne nauke Vinča, Beograd, 2015)
Biodiesel is one of the promising renewable, alternative, and environmentally friendly biofuels that can be used in Diesel engine with little or no modification in the engine. The present paper investigates the combustion ...
Numerical study of transient three-dimensional heat conduction problem with a moving heat source
(Univerzitet u Beogradu - Institut za nuklearne nauke Vinča, Beograd, 2011)
A numerical study of transient three-dimensional heat conduction problem with a moving source is presented. For numerical solution Douglas-Gunn alternating direction implicit method is applied and for the moving heat source ...
Experimental and CFD analysis of wire coil turbulators in biomass boilers
(University of Belgrade, Vinča Institute of Nuclear Sciences, 2023)
To achieve as complete fuel burnout with as little excess air as possible, small wood log boilers (< 50 kW) use stage combustion. The first stage is often a process similar to downdraft gasification that consequently ...
Combustion of low grade fractions of Lubnica coal in fluidized bed
(Univerzitet u Beogradu - Institut za nuklearne nauke Vinča, Beograd, 2012)
In this paper a method of examination of fuel suitability for fluidized bed combustion is presented. The research of combustion characteristics of low grade fractions of Lubnica brown coal in the fluidized bed by the ...
Thermal stress analysis of a fiber-epoxy composite material
(Univerzitet u Beogradu - Institut za nuklearne nauke Vinča, Beograd, 2011)
Paper presents stress calculation in the stationary temperature domain for a hybrid structure with standard epoxy-carbon fiber composite and metallic part, showing different thermal behavior. The thermal stress analysis ...