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EXPERIMENTAL AND NUMERICAL STUDY OF CONTROLLED FLUTTER TESTING IN A LINEAR TURBINE BLADE CASCADE
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2018)
In this paper, experimental testing of flutter and numerical simulations using a commercial code ANSYS CFX and an in-house code TRAF are performed on an oscillating linear cascade of turbine blades installed in a subsonic ...
AMBIENT TEMPERATURE IMPACT ON MICRO GAS TURBINES: EXPERIMENTAL CHARACTERIZATION
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2018)
In the panorama of gas turbines for energy production, a great relevance is given to performance impact of the ambient conditions. Under the influence of ambient temperature, humidity and other factors, the engine performance ...
REGARDING CERTAIN AERODYNAMIC SOURCES OF NON-STATIONARY FORCE LOADS ON TURBINE PROFILES
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2018)
The paper deals with selected phenomena present in a blade cascade flow field. The presented research was performed on prismatic blade cascades composed mostly of the tip and root sections of the last stage rotor blade of ...
MARKET AND DEVELOPMENT TRENDS IN COGENERATION AND COMBINED HEAT AND POWER PLANTS
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2018)
The transition of energy mix in Europe is placing greater focus on energy efficiency. Lawmakers in some of EU countries have already recognized that combined heat and power generation (cogeneration, CHP) can help increase ...
CFD FLOW ANALYSIS OF THE CANTILEVER MICRO-TURBINE
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2018)
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. ...
ISENTROPIC EFFICIENCY OF CENTRIFUGAL COMPRESSOR WORKING WITH REAL GAS
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2018)
The contribution deals with calculation of isentropic efficiency and also with calculation of isentropic process of real gas or gaseous mixtures. The method is based on numerical solution of basic definitional equation of ...
THERMO-MECHANICAL FATIGUE ANALYSIS OF A STEAM TURBINE SHAFT
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2018)
Increasing demands on the flexibility of steam turbines due to the use of renewable energy sources substantially alters the fatigue strength requirements of components of these devices. Rapid start-ups as well as the ...
TURBOMACHINES 2018
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2018)
The Turbostroje / Turbomachines conference has been held regularly since 1999, alternately prepared by A.S.I. Regional Branch in Pilsen and in Prague. In 2018 main topic is "Flexible Fossil Power Plants for the Future ...
EXPERIMENTAL AND NUMERICAL RESEARCH ON FLOW IN THE LAST STAGE OF 1090MW STEAM TURBINE
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2018)
The paper deals with experimental and numerical research in the last stage of real 1090MW steam turbine with the last steel blade length 1220mm placed in nuclear power station. The last stage was equipped with twelve static ...
THE EFFECT OF NOTCHES ON THE FATIGUE LIFE OF A NICKEL-BASE GAS TURBINE DISK MATERIAL
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2018)
Gas turbine disks carry significant load under high temperatures and may be subject to fatigue failure. Disks contain several notches in the form of the fir tree blade attachments. Low cycle fatigue tests were performed ...