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Collection's Items (Sorted by Submit Date in Descending order): 1 to 15 of 15
Morávka, Štefan , Študent, Josef
Influence of Manufacturing Variations of Protuberant Teeth Shapes on Gearing Stresses of High-speed Gearboxes

The paper describes the solution of a current problem related to the technology of production of gear for high-speed gearboxes. The aim is to establish a reliable basis and procedure for evaluating the influence of manufacturing variations in the shape of the heel of the ...

Sedláček, Jan , Hurda, Lukáš , Mráček, Jindřich
Analysis of multi constant current flowmeter heated elements

This paper deals with the initial analyses in the development of a new generation of Multi Constant Current Flowmeter. It is a specialized measuring instrument combining hot wire anemometers and tomographic evaluation of measured data. The meter is designed especially for the automotive...

Syka, Tomáš , Weiß, Andreas P. , Matas, Richard
CFD flow analysis of the influence of rotor seals in a cantilever microturbine

The article describes the results from the research and development of a cantilever microturbine designed for ORC power plants. The main objective of the paper was to compare different types of rotor seals and their effect on the turbine efficiency and rotor forces. The turbin...

Novák, Martin , Matas, Richard
Numerical Simulations in SCR systems with Emphasis on Uniform Flow at the Catalyst Inlet

Selective Catalytic Reduction (SCR) is one of the most widelyused technologies for reducing emissions from diesel engines, which arewidely used in the energy world. This technology is very complex, and it isnot currently possible to address all aspects of it comprehensively. This study&...

Kazda, Jakub , Matas, Richard , Sedláček, Jan
Modelling fluid flow and heat transfer tasks for testing PIR motion sensor

The aim of this paper is to describe the methodology of modelling fluid flow and heat transfer tasks for testing electronic motion sensors, especially PIR (passive infra-red) motion sensors. The motion sensor measures changes in electromagnetic radiation in the infrared range caused by&...

Syka, Tomáš , Weiß, Andreas P.
CFD flow analysis of the cantileverR micro-turbine

The article deals with a description of results from research and development of the cantilever micro-turbine designed for the ORC power plants. The experimental turbine stage and used numerical models are briefly described. In the first part the comparison of measured and CFD resu...

Monkova, Katarina , Urban, Marek , Monka, Peter Pavol , Morávka, Štefan , Božiće, Željko
Design of the levers at the development of new self-equalizing thrust bearings

Plain bearings are undoubtedly one of the essential parts of turbines and compressors. However, there are many cases in which asymmetric load occurs on the bearings due to thermal deformations, production inaccuracies or a simple deflection of the shaft. The presented research deals...

Očenášek, J.
Study of anharmonic vibrational properties in 3D crystals using molecular dynamics simulations

Hajžman, M. , Bulín, R. , Očenášek, J.
Effect of multiple pantographs on their dynamic interaction with a catenary system

Ozom, Bořek , Matas, Richard , Sedláček, Jan
Simplified Experimental and Computational Fuel Rod Models for Identifying Critical Heat Flux

Voldřich, Josef , Morávka, Štefan
A study of hydrodynamically lubricated contact between axial rings of a high-speed gearbox

The pressure field and losses in hydrodynamically lubricated contact between axial rings of the pinion and the wheel of a high-speed gearbox under steady-state loading are investigated. For that reason a computer program was developed to numerically solve the general Reynolds and energy...

Hurda, Lukáš , Matas, Richard
Preliminary Computational Study of Centrifugal Compressor Inlet Flow Instabilities with Radial Inlet Guide Vanes

The paper presents the research of flow instabilities in the inlet part of a centrifugal compressor channel equipped with radial inlet guide vanes. A simplified model is created and for that, a dimensional analysis of the flow is carried out. Methods of computational fluid dyn...

Matas, Richard , Novák, Martin , Kňourek, Jindřich
Numerical Simulations of Flow in Electrostatic Precipitators

Electrostatic precipitators are widely used in power generation and industry to separate solid particles from flue gases. They need relatively homogeneous distribution of the flue gas inside otherwise the required efficiency cannot be ensured. The paper shows how to approach some of pos...

Novák, Martin , Matas, Richard , Sedláček, Jan
Numerical simulations of droplet evaporation in a SCR system submodel with hot air flow

Hurda, Lukáš , Matas, Richard
Radial Compressor Test Data Processing with Real Gas Equation of State

Collection's Items (Sorted by Submit Date in Descending order): 1 to 15 of 15