Temat: turbina wiatrowa o pionowej osi - Katalog OPAC zbiorów

Skocz do pozycji: 1.

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

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Skocz do pozycji: 2.

Tytuł:: CFD analysis of the air flow around the blades of the vertical axis wind turbine
Analiza CFD przepływu powietrza wokół łopat turbiny wiatrowej o pionowej osi obrotu
Autorzy:: Gavgali, M. M.
Czyż, Z.
Czarnigowski, J.
Powiązania:: https://bibliotekanauki.pl/articles/101830.pdf
Data publikacji:: 2017
Wydawca:: Politechnika Lubelska. Polskie Towarzystwo Promocji Wiedzy
Tematy:: vertical axis wind turbine
VAWT
CFD
aerodynamics forces
drag force
lift force
turbina wiatrowa o pionowej osi obrotu
siły aerodynamiczne
siła oporu
siła nośna
Opis:: The paper presents the results of calculations of flow around the vertical axis wind turbine. Three-dimensional calculations were performed using ANSYS Fluent. They were made at steady-state conditions for a wind speed of 3 m/s for 4 angular settings of the three-bladed rotor. The purpose of the calculations was to determine the values of the aerodynamic forces acting on the individual blades and to present the pressure contours on the surface of turbine rotor blades. The calculations were made for 4 rotor angular settings.
W pracy przedstawiono wyniki obliczeń opływu wirnika turbiny wiatrowej o pionowej osi obrotu. Trójwymiarowe obliczenia wykonano za pomocą programu ANSYS Fluent. Obliczenia przeprowadzono w warunkach stacjonarnych dla prędkości wiatru równej 3 m/s dla 4 ustawień kątowych wirnika z trzema łopatami. Celem przeprowadzonych obliczeń było określenie wartości składowych siły aerodynamicznej działającej na poszczególne łopaty oraz przedstawienie konturów ciśnienia na powierzchni łopat wirnika turbiny. Obliczenia przeprowadzono dla 4 ustawień kątowych wirnika.
Źródło:: Journal of Technology and Exploitation in Mechanical Engineering; 2017, 3, 1; 1-7
2451-148X
Pojawia się w:: Journal of Technology and Exploitation in Mechanical Engineering
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 3.

Tytuł:: Numerical modeling of vertical axis wind turbine with air guides
Autorzy:: Kołodziejczyk, Krzysztof
Ptak, Radosław
Korman, Jakub
Powiązania:: https://bibliotekanauki.pl/articles/2064368.pdf
Data publikacji:: 2019
Wydawca:: STE GROUP
Tematy:: vertical axis wind turbine
numerical modeling
turbina wiatrowa o pionowej osi
modelowanie numeryczne
energia ze źródeł odnawialnych
Opis:: Currently, obtaining energy from renewable sources, as never before, it has become one of the most important areas, but at the same time challenges in human activities. This is the effect of many factors simultaneously, including because of the media trumpeted the greenhouse effect, the necessity of reducing CO2 emissions, shrinking natural resources, and thus the desire to protect their welfare including conservation (including natural resources) for future generations. The paper presents the results of preliminary numerical analyzes of work for vertical axis wind turbines equipped with air guides. The carried out analyzes indicate the potential possibility of using this type of construction in practice. The obtained power factor value is higher than in classic wind turbines with a vertical axis. The conducted analyzes also indicate the possibility of optimizing the proposed constructional solution in order to increase efficiency of obtaining energy from the wind.
Źródło:: New Trends in Production Engineering; 2019, 2, 1; 589--595
2545-2843
Pojawia się w:: New Trends in Production Engineering
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 4.

Tytuł:: Green energy from a hybrid PV panels and wind turbine farm in Lebanon
Autorzy:: Nesser, Bassel I.
Soliman, Mohamed Hassan
Pytel, Krzysztof
Powiązania:: https://bibliotekanauki.pl/articles/2064369.pdf
Data publikacji:: 2019
Wydawca:: STE GROUP
Tematy:: vertical axis wind turbine
PV panel
carbon dioxide
panel fotowoltaiczny
dwutlenek węgla
turbina wiatrowa o pionowej osi
Opis:: The publication presents the results of analysis of green energy from a hybrid PV panels and wind turbine farm use in Lebanon. Electricity is one of the most critical problems in Lebanon. This publication presents an effective solution to this issue. It deals with the generation of green environment friendly electricity from photovoltaic (PV) panels and wind turbine. The genuine idea consists of placing these panels and turbines at the middle of the coastal highway since it is considered as a free land. The produced energy is fed directly to the off gird after being inverted using appropriate devices. The middle of the highway from Tyre to Sidon is considered to apply this research. The actual design consists of 15222 PV panels placed in pairs on a steel chassis among the entire 27300 m coastal distance, 2 meters wide and 7610 vertical axis wind turbines placed at a distance of 0.9 m away from each pair of PV panels. The total energy produced by the PV system is estimated to 7.4 GWh/y and 3.1 GWh/y at an average wind velocity of 4.04 m/s. In addition to its benefit from a free land, the produced energy is environment friendly since there is no carbon dioxide emission.
Źródło:: New Trends in Production Engineering; 2019, 2, 1; 541--548
2545-2843
Pojawia się w:: New Trends in Production Engineering
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 5.

Tytuł:: Numerical Analysis of a Small-Size Vertical-Axis Wind Turbine Performance and Averaged Flow Parameters Around the Rotor
Autorzy:: Rogowski, K.
Maroński, R.
Piechna, J.
Powiązania:: https://bibliotekanauki.pl/articles/140198.pdf
Data publikacji:: 2017
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: vertical-axis wind turbine
aerodynamics
computational fluid dynamics
turbina wiatrowa o pionowej osi obrotu
aerodynamika
obliczeniowa dynamika płynów
Opis:: Small-scale vertical-axis wind turbines can be used as a source of electricity in rural and urban environments. According to the authors’ knowledge, there are no validated simplified aerodynamic models of these wind turbines, therefore the use of more advanced techniques, such as for example the computational methods for fluid dynamics is justified. The paper contains performance analysis of the small-scale vertical-axis wind turbine with a large solidity. The averaged velocity field and the averaged static pressure distribution around the rotor have been also analyzed. All numerical results presented in this paper are obtained using the SST k- ω turbulence model. Computed power coefficients are in good agreement with the experimental results. A small change in the tip speed ratio significantly affects the velocity field. Obtained velocity fields can be further used as a base for simplified aerodynamic methods.
Źródło:: Archive of Mechanical Engineering; 2017, LXIV, 2; 205-218
0004-0738
Pojawia się w:: Archive of Mechanical Engineering
Dostawca treści:: Biblioteka Nauki

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