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Some subtleties concerning fluid flow and turbulence modeling in 4-valve engines
(Univerzitet u Beogradu - Institut za nuklearne nauke Vinča, Beograd, 2011)
In this paper some results concerning the structure and evolution of fluid flow pattern during induction and compression in 4- valve engines with tilted valves were presented. Results were obtained by dint of multidimensional ...
Criteria selection for the assessment of Serbian lignites tendency to form deposits on power boilers heat transfer surfaces
(Univerzitet u Beogradu - Institut za nuklearne nauke Vinča, Beograd, 2009)
Based on investigations of ash deposit formation, semi-empirical indicators for slagging and fouling, based on ash chemical composition and its fusion temperature, have been determined. These criteria-indicators, in suggested ...
Optimization of the triple-pressure combined cycle power plant
(Univerzitet u Beogradu - Institut za nuklearne nauke Vinča, Beograd, 2012)
The aim of this work was to develop a new system for optimization of parameters for combined cycle power plants (CCGT) with triple-pressure heat recovery steam generator (HRSG). Thermodynamic and thermoeconomic optimizations ...
The possibilities for measurement and characterization of diesel engine fine particles: A review
(Univerzitet u Beogradu - Institut za nuklearne nauke Vinča, Beograd, 2011)
This review paper considers possible instrumentation for diesel engine fine particles exhaust emission evaluation. The modern diesel engines have extremely low particles emission almost at the level of measurement error ...
A study on the grindability of Serbian coals
(Univerzitet u Beogradu - Institut za nuklearne nauke Vinča, Beograd, 2011)
Thermal power plants in the Republic of Serbia are making considerable efforts and even more considerable investments, not only to maintain electricity production at maximum design levels, but even to additionally increase ...
Thermomechanical modelling the resistance welding of PbSb alloy
(Univerzitet u Beogradu - Institut za nuklearne nauke Vinča, Beograd, 2010)
The analytical modelling of the PbSb alloy resistance spot welding process has been developed on the basis of mathematical analysis of thermomechanical conservation laws. The numerical solution of partial differential ...
Waste heat potentials in the drying section of the paper machine in Umka Cardboard Mill
(Univerzitet u Beogradu - Institut za nuklearne nauke Vinča, Beograd, 2011)
This paper deals with methods for calculation of potentials of waste heat generated in paper/board production process. For that purpose, the material and heat balance of the cardboard machine at Umka Cardboard Mill has ...
INVESTIGATION OF THE TURBULENT SWIRL FLOWS IN A CONICAL DIFFUSER
(Univerzitet u Beogradu - Institut za nuklearne nauke Vinča, Beograd, 2010)
Results of the theoretical and experimental investigations of the turbulent mean swirl flows characteristics change along straight conical diffuser of incompressible fluid (air) are presented in this paper. The main swirl ...
Energy savings for residential heating in two pairs of buildings achieved by implementation of actually consumed energy measuring
(Univerzitet u Beogradu - Institut za nuklearne nauke Vinča, Beograd, 2006)
The paper presents results of heating energy consumption measurements in two pairs of buildings in community New Belgrade for two heating seasons. Influence of these measurements on energy savings is also presented. The ...
Effect of temperature on a free energy and equilibrium constants during dry flue gas desulphurisation chemical reactions
(Univerzitet u Beogradu - Institut za nuklearne nauke Vinča, Beograd, 2002)
During dry flue gas desulphurisation (FGD) dry particles of reagents are inserted (injected) in the stream of flue gas, where they bond SO2. As reagents, the most often are used compounds of calcium (CaCO3, CaO or Ca(OH)2). ...