This contribution describes a comparison of the concrete structure design results obtained via the partial reliability factor method and using the fully probabilistic met [...]

Currently, the precast industry represents 20% of concrete production around the world and the use of steam curing to accelerate hydration has been adopted as one of the [...]

The work deals with numerical solution of 3D viscous steady incompressible flow of air passing through the entrance part of a new wind tunnel for the Aerodynamic Laborato [...]

Q-learning method proved to be usable in active magnetic bearing (AMB) control task, however the learning speed remains the main problem. Two-phase variant of the Q-learn [...]

Linear guiding of machine tools is a very important design element. It can be made as a straight linear guiding or as a curved type, either with the limited stroke length [...]

Abstrakt:

In several newly built or modernised strip rolling mills in the Czech Republic, defects leading to products of low quality or product wasting have appeared. The article e [...]

A new method of blade design based on the previously determined meridional velocity field is introduced in this contribution. The aim of calculation is the spatial shape [...]

Abstrakt: In all power plants (classical and nuclear) are used safety relief valves. After opening of this ones the mass of fluid (gas or steam) begin to move with very h [...]

Outcomes of a numerical simulation of flow through an unbalanced control valve during the turbine's operational modes. A 2D as well as a 3D calculation study is considere [...]

The basic form of the exhaust hood for single flow arrangement of steam turbine was designed by the experience from the optimization process of hoods for double flow arra [...]

This paper is concerned with mathematical modeling of the imperfect bladed disk with friction elements, which are used to suppress blade vibration. These kinds of systems [...]

The reactors VVER – 440 are cooled and moderated by pressurized water – PWR. The primary coolant is subcooled in the PWR and steam is generated by transferring energy [...]

This paper is concentrated on modelling of friction effects in bladed disk of steam turbine, which are realized by means of friction elements placed between blades shroud [...]

Experimentally investigated pressure pulsation downstream of the control valve cone is presented here. The valve with the mufflers and the flat bottom is compared with th [...]

Presented paper deals with computational fatigue strength prediction of high pressure level steam turbine blade pin joints. Quazi-static FE analysis of one turbine disk s [...]

This paper presents a simulation of 3D curved crack propagation in a steam turbine blade lock. These fatigue cracks are often initiated near a blade root contact zone. Tw [...]

The research focuses on developing a new type of vertical axis wind power generator, in which fan-shaped up-structure with floating foundation on water is used to catch t [...]

The principle of a steam turbine balanced control system is presented here. The dynamic stress measurement method in parts of valves on its models in the aerodynamic wind [...]

A stage with impulse blading on a drum rotor is considered. Steam leakage through the shroud and shaft sealing has been determined by means of a numerical simulation. The [...]

Are given the results of the calculation study of the streaming in the stage with different admission rates and in the chamber between grades (stages) with different admi [...]

The point of this paper is the comparison between the different kind of shapes turbine blades in relation to efficiency of the stage. The first part of the paper deals wi [...]

Experimental investigation of profile and secondary losses is presented here. The loss coefficients of different types of blade cascades are evaluated, the efficiency of [...]

The paper describes effects of end wall shaping in guide blades on steam turbine stage efficiency. CFD and measurement of straight blade cascades in a wind tunnel were pe [...]