DynLab deals with the design of rotating machines, analysis of rotor dynamics, and experimental methods for accurate measurement. These activities contribute to the development of advanced rotating systems, their computational modelling, and simulations.
As a partner in the industrial development of rotating machines, and analytical and measuring methods, we explore the possibilities of applying current design and calculation methods and developing new methods, allowing their easy and efficient use in engineering practice and academia.
DynLab has modern equipment and prototypes of measuring devices of rotating systems and their parts, with which students of the department carry out their research work and commercial research activities, thus contributing to the improvement of the current state of knowledge.
The project aims to develop an electrically driven pump usable for cryogenic oxidizers, usable in rocket engines with a thrust of up to 10 kN. This application concerns mainly new-generation rocket engines with regenerative cooling. The pump design allows a fast response to power regulation and a relatively simple restart compared to commonly used engines with turbopumps.
The primary requirement of the pump is to supply a relatively large amount of oxidant for the injectors in the combustion chamber at sufficient pressure to ensure proper atomization and mixing of the fuel with the oxidant to secure stable combustion. The pump is adjustable with dynamics given by the requirements for efficient control of thrust, i.e., pressure and flow of oxidizer.
Research and development of a nano-turbine with an output of 30 kW for a steam cycle operating with superheated steam on the principle of a two-stage turbine on a common shaft with a synchronous drive with permanent magnets with an operating speed of 82 kRPM. It is a commercial cooperative project that aims at increased demand for micro-cogeneration units and distributed energy sources, responding to trends in reducing greenhouse gas emissions, high energy demand, heat and energy cogeneration, waste-to-energy chain and waste recovery (refuse-driven fuel).
The main advantages of the nano-turbine are the absence of seals and an oil-free system that eliminates the leakage of lubricants and contamination of process media thanks to bearings lubricated with working media. Thanks to the absence of a gearbox, the system is highly compact and easy to maintain, characterized by high efficiency, durability and the absence of emissions and noise at the site.
The aim of the project is the research and development of an electrically powered micro turbocharger designed for clean applications of new generations of fuel cell power units. The micro turbocharger is a high-speed synchronous motor / generator with permanent magnets with two working stages (compressor and turbine) using a unique technology of gas-lubricated bearings, which offer high resistance to wear caused by discontinuous operation.
This gas bearing technology ensures that the supplied air will not be contaminated with oil microparticles. Thanks to the use of process gas (air) as the lubricating medium, the proposed solution will have significantly lower losses compared to oil-lubricated hydrodynamic or ball bearings.
The project focuses on the research and development of an electrically powered high-speed compressor for clean applications of new generations of fuel cell power units and other applications requiring a compact oil-free compressor.
The use of air-lubricated tilting-pad gas bearings brings significant qualitative advantages to the compressor design, as they are inherently oil-free and low-loss. This determines the area of their future use in clean applications. The partial goals of the project are the research of a high-speed electromagnetic circuit, gas bearings, measurement of technical parameters of compressors and testing of reliability and service life of high-speed rotating machines.
The principal motivation for this test is to verify the functional properties and operational safety of a hydrodynamic bearing operating with highly concentrated peroxide (HTP). Concerning the current development of missile technology and the requirements placed on the developed equipment, HTP represents a highly promising oxidizer. The performance and operating requirements of rotating machines (especially pumps) in this industry are enormous and often require relatively high operating speeds. For this reason, the combination of hydrodynamic bearings working with peroxide as the operating fluid represents a promising technology.
On the other hand, using an oxidant as a working medium of a hydrodynamic bearing may pose an obvious safety risk. For this reason, it is essential to perform representative functional tests and experimentally verify the basic operating characteristics of these bearings.