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 ...

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...

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...

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&...

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&...

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...

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...

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...

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...

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...