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Effects of operation temperature on thermal expansion and main parameters of radial ball bearings
(Univerzitet u Beogradu - Institut za nuklearne nauke Vinča, Beograd, 2015)
The research of influence of operation temperature on the thermal expansion and main parameters of radial ball bearings is presented in this paper. The main bearing parameters are identified in accordance with the increasing ...
Study on impact properties of creep-resistant steel thermally simulated heat affected zone
(Univerzitet u Beogradu - Institut za nuklearne nauke Vinča, Beograd, 2012)
The steam pipe line and steam line material, along with its welded joints, subject to damage that accumulates during operation in coal power plants. As a result of thermal fatigue, dilatation of steam pipe line at an ...
Analysis of the evaporative towers cooling system of a coal-fired power plant
(Univerzitet u Beogradu - Institut za nuklearne nauke Vinča, Beograd, 2012)
The paper presents a theoretical analysis of the cooling system of a 110 MW coal-fired power plant located in central Serbia, where eight evaporative towers cool down the plant. An updated research on the evaporative tower ...
Numerical prediction of nucleate pool boiling heat transfer coefficient under high heat fluxes
(Univerzitet u Beogradu - Institut za nuklearne nauke Vinča, Beograd, 2016)
This paper presents computational fluid dynamics approach to prediction of the heat transfer coefficient for nucleate pool boiling under high heat fluxes. The 3-D numerical simulations of the atmospheric saturated pool ...
A microbearing gas flow with different walls' temperatures
(Univerzitet u Beogradu - Institut za nuklearne nauke Vinča, Beograd, 2012)
An analytical solution for the non-isothermal 2-D compressible gas flow in a slider microbearing with different temperatures of walls is presented in this paper. The slip flow is defined by the continuity, Navier-Stokes ...
Industrial cooling tower design and operation in the moderate-continental climate conditions
(Univerzitet u Beogradu - Institut za nuklearne nauke Vinča, Beograd, 2016)
A large number of producers offer a wide choice of various types of industrial cooling towers. Usually, a proper choice of pre-fabricated cooling tower satisfies end-user needs. However, if there are specific end-user ...
Analytical and experimental determination of the temperature field on the surface of wall heating panels
(Univerzitet u Beogradu - Institut za nuklearne nauke Vinča, Beograd, 2015)
This paper presents experimental verification of the accuracy and acceptability of Faxen-Rydberg-Huber analytical expression for determining thermal characteristics of the heating panels. The verification of accuracy of ...
Mechanism of primary fragmentation of coal in fluidized bed
(Univerzitet u Beogradu - Institut za nuklearne nauke Vinča, Beograd, 2016)
In order to lay a foundation of a credible primacy fragmentation model, a theoretical analysis of the thermo-mechanical processes in a devolatilizing solid fuel particle was carried out. The devolatilization model comprises ...
Multistage ensemble of feedforward neural networks for prediction of heating energy consumption
(Univerzitet u Beogradu - Institut za nuklearne nauke Vinča, Beograd, 2016)
Feedforward neural network models are created for prediction of heating energy consumption of a university campus. Actual measured data are used for training and testing the models. Multistage neural network ensemble is ...
Temperature and heat effects on polyethylene behaviour in the presence of imperfections
(Univerzitet u Beogradu - Institut za nuklearne nauke Vinča, Beograd, 2016)
This paper highlights the changes of polyethylene behaviour during various loading rates as well as the influence of test temperature on the material characteristics. Passive infrared thermography method and a high speed ...