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Wyszukujesz frazę "Turbiny" wg kryterium: Temat


Wyświetlanie 1-4 z 4
Tytuł:
Układ ORC jako system poprawy efektywności energetycznej w instalacji turbiny gazowej zasilanej z układu beztlenowej stabilizacji osadów ściekowych
ORC as a Improvement System of Energy Efficiency of a Gas Turbine Installation Fed by the Anaerobic Sewage Sludge Stabilization
Autorzy:
Mikielewicz, J.
Matysko, R.
Powiązania:
https://bibliotekanauki.pl/articles/1819088.pdf
Data publikacji:
2013
Wydawca:
Politechnika Koszalińska. Wydawnictwo Uczelniane
Tematy:
poprawa efektywności
instalacja turbiny
Opis:
Anaerobic fermentation obtaining methane is applied in sludge stabilization processes. Methane is used to generate heat as well as the electric current in the fuel cells systems, gas turbines or cogenerative engines characterized by the high temperature oxidation. High temperature oxidation products (H2O, CO, CO2 and other flue gas) can be used in ORC cycles to generate the electric power. The following thesis presents the project of more efficient electric power generation system than the one used in the currently and based on cogenerative aggregates (piston engines). Models mentioned in the thesis: - ORC cycle (Organic Ranking Cycle), - gas turbine - an anaerobic sludge stabilization system The presented installation is more efficient in the electricity production (about 38%) than the traditional piston cogenerative engines used for biogas combustion (about 32%).
Źródło:
Rocznik Ochrona Środowiska; 2013, Tom 15, cz. 2; 1367-1377
1506-218X
Pojawia się w:
Rocznik Ochrona Środowiska
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Method for wind turbine selection basing on in-field measurements
Autorzy:
Wolniewicz, Katarzyna
Kuczyński, Waldemar
Zagubień, Adam
Powiązania:
https://bibliotekanauki.pl/articles/95235.pdf
Data publikacji:
2019
Wydawca:
Politechnika Koszalińska. Wydawnictwo Uczelniane
Tematy:
wind turbines
wind power
wind conditions
turbiny wiatrowe
energia wiatru
warunki wiatrowe
Opis:
The following paper covers a method for wind turbine selection with a horizontal axis of rotation basing on real in-field measurements of wind conditions. The basic meteorological properties and characteristics obtained during measurement campaigns using necessary equipment as well as the used methodology are vital for successful investment in wind farm. The main goal of in-field investigation is to collect meteorological data using a measurement mast installed at the possible future wind farm location. The conducted measurement campaign provided wind directions, velocities and wind blast parameters. The measurements were conducted in the northern Poland using measuring system installed on 100 meter high mast. The system was equipped with all devices necessary to measure and record the basic wind parameters. The reliability of measurements was verified using statistical data for the Weitbull distribution and the wind rose. In this way, the energy potential of raw air stream that could possibly drive a wind turbine was determined. Among 6 pre-selected wind turbine types, the optimal one for a given location was proposed.
Źródło:
Journal of Mechanical and Energy Engineering; 2019, 3, 1; 77-84
2544-0780
2544-1671
Pojawia się w:
Journal of Mechanical and Energy Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Investigation and optimization of an untypical vertical axis rotor of a small wind turbine
Autorzy:
Kortenstedde, Frank
Stief, Jan Mathias
Powiązania:
https://bibliotekanauki.pl/articles/95169.pdf
Data publikacji:
2019
Wydawca:
Politechnika Koszalińska. Wydawnictwo Uczelniane
Tematy:
wind energy
vertical axis wind turbine
energia wiatru
turbiny wiatrowe o pionowej osi obrotu
Opis:
In this paper, an atypical resistance rotor of a vertical axis small wind energy turbine is to be aerodynamically investigated and later on optimized in a flow simulation. In this report the results obtained from the flow simulations of the single and two rotor setup, as well as the results from the flow simulations of a single blade, are presented. The geometry of the rotor and blades is the base geometry for further optimization. All simulations are performed with one specific tip speed ratio. The base geometry for slat and baffle can be calculated based on experience gained in previous studies. It was found in previous experiments that a rotor with 42% coverage (area that occupies the wings of the total circumference) is always started. Those experiments have also shown that a rotor with 36.5% coverage has a higher power coefficient at low wind speeds, at higher wind speeds, the rotor with 42% coverage has a better power coefficient. Based on those first investigations the optimization of the blade and rotor geometry will be carried out later in this project. Another focal point will be the investigation of the "stacking" of two wind turbines on top of each other in order to obtain a stable torque over the entire circulation and the determination of the optimal distance between two rotors.
Źródło:
Journal of Mechanical and Energy Engineering; 2019, 3, 3; 245-258
2544-0780
2544-1671
Pojawia się w:
Journal of Mechanical and Energy Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Power spectrum analysis for determination of the number of Vertical Axis Wind Turbine blades
Autorzy:
Anweiler, S.
Fedak, W.
Gancarski, W.
Ulbrich, R.
Powiązania:
https://bibliotekanauki.pl/articles/95342.pdf
Data publikacji:
2017
Wydawca:
Politechnika Koszalińska. Wydawnictwo Uczelniane
Tematy:
renewable energy sources
wind turbine
VAWT
power spectrum
hydrodynamic force
odnawialne źródła energii
turbina wiatrowa
turbiny wiatrowe o osi pionowej
widmo mocy
Opis:
Technology of wind exploitation has been applied widely all over the world and has already reached the level in which manufacturers want to maximize the yield with the minimum investment outlays. The main objective of this paper is the determination of the optimal number of blades in the Cup-Bladed Vertical Axis Wind Turbine. Optimizing the size of the Vertical Axis Wind Turbine allow the reduction of costs and increase the output. The target is the maximum power of the rotor. The optimum number of Vertical Axis Wind Turbine blades evaluation is based on analysis of a single blade simulation and its superposition for the whole rotor. The simulation of working blade was done in MatLab environment. Power spectrum graphs were prepared and compared throughout superposition of individual blades in the Vertical Axis Wind Turbine rotor. Some wind tunnel measurements of the hydrodynamic force according to pitch angle of the blade are also shown. The major result of this research is the Vertical Axis Wind Turbine kmax ratiopower characteristic. On the basis of the analysis of the power spectra, optimum number of the blades was specified for the analysed rotor. Power spectrum analysis of wind turbine enabled the specification of the optimal number of blades, and can be used regarding investment outlays and power output of the Vertical Axis Wind Turbine.
Źródło:
Journal of Mechanical and Energy Engineering; 2017, 1, 2; 153-161
2544-0780
2544-1671
Pojawia się w:
Journal of Mechanical and Energy Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-4 z 4

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