Experimental power curve of small-size wind turbines in turbulent urban environment

Pagnini, Luisa Carlotta; Burlando, Massimiliano; Repetto, Maria Pia

doi:10.1016/j.apenergy.2015.04.117

Cited by 172 publications

(96 citation statements)

References 25 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Bu rüzgâr türbinlerinden alınabilecek maksimum verim Betz kriteri ile belirlenir ve bu değer de en yüksek %59'dur [6]. Büyük rüzgâr türbinlerinde bu verimlilik %30-45'ler civarında iken, küçük rüzgâr türbinlerinde %15-30'lar civarındadır [7]. Bu verimi rüzgâr türbinlerindeki kaykı momenti de olumsuz yönde etkilemektedir [8].…”

Section: Introductionunclassified

Türki̇ye, Samsun-Havza Rüzgâr Enerji̇ Potansi̇yeli̇ Değerlendi̇rmesi̇

Mamur¹,

Karayel²

2018

Ömer Halisdemir Üniversitesi Mühendislik Bilimleri Dergisi

View full text Add to dashboard Cite

ÖZ EVALUATION OF WIND ENERGY POTENTIAL IN HAVZA-SAMSUN, TURKEY ABSTRACTIn this study, the wind potential measurement of the defined region has been carried out by means of a wind tower installed in Havza-Samsun, Turkey. The analyzed wind data have been accumulated and registered from 2014 to 2015 dates in 10 min intervals through the tower of 80 m having three anemometers at 80 m, 78 m, and 57 m. Moreover, other air variables have been taken with the aid of temperature, humidity and pressure transmitters placed at 5 m and 6 m heights of the tower. According to the evaluations, the average wind speed at 80 m tower height has been calculated 4.9 m/s. Also, the average pressure value at 5 m tower height, the temperature value at 5 m tower height, and the humidity value at 6 m tower height have been defined 928.52 hPa, 12.61°C, and 72.14%, respectively. Depending on this data, the energy that can be produced is found in Watts/m 2 for heights of 30 m and 80 m. Finally, the dominant wind direction of the selected region has been determined as the North direction by means of two wind direction transmitters installed at 78 m and 28 m heights. According to the obtained values, it is determined that this selected area is not suitable for large wind turbine investments.

show abstract

Section: Introductionunclassified

Türki̇ye, Samsun-Havza Rüzgâr Enerji̇ Potansi̇yeli̇ Değerlendi̇rmesi̇

Mamur¹,

Karayel²

2018

Ömer Halisdemir Üniversitesi Mühendislik Bilimleri Dergisi

View full text Add to dashboard Cite

show abstract

“…In the first case, excluding a situation when the wind turbine is running in a diffuser, we are entirely dependent on the forces of nature, because we have virtually no effect on wind power. In the second case, it seems that all simple solutions have already been exhausted, because enlarging the diameter of rotors above 140 m is connected with great technological problems and a very large, disproportionate increase in manufacturing costs [19]. A cheaper option, which additionally affects the efficiency of the turbine, is to improve the design of the blades themselves.…”

Section: Introduction and Objectivesmentioning

confidence: 99%

Operational tests of a dual-rotor mini wind turbine

Romański¹,

Bieniek²,

Komarnicki³

et al. 2016

EiN

View full text Add to dashboard Cite

The article presents the results of wind-tunnel tests and field studies of a mini dual-rotor wind turbine. The first stage involved testing of an open-circuit wind tunnel built with the aim of performing laboratory tests. The coefficient of uneven air stream disRomAński L, Bieniek J, komARnicki P, DęBowski m, DeTynA J. operational tests of a dual-rotor mini wind turbine. eksploatacja i niezawodnosc -maintenance and Reliability 2016; 18 (2): 201-209, http://dx

show abstract

“…In the last decade, the development of renewable energy sources has attracted increasing interest due to the depletion of fossil-fuel reserves, the world's ever-growing energy consumption, and the threat of global warming [1][2][3][4]. Among the various renewable energy alternatives, wind energy is considered to be the most cost-effective of all the currently exploited renewable energy sources and has shown the fastest growth [5][6][7][8].…”

Section: Introductionmentioning

confidence: 99%

Vibration-induced aerodynamic loads on large horizontal axis wind turbine blades

et al. 2017

View full text Add to dashboard Cite

The blades of a large Horizontal Axis Wind Turbine (HAWT) are subjected to significant vibrations during operation. The vibrations affect the dynamic flow field around the blade and consequently alter the aerodynamic forces on the blade. In order to better understand the influence of blade vibrations on the aerodynamic loads, the dynamic stall characteristics of an S809 airfoil undergoing translational motion as well as pitching motion were investigated using Computational Fluid Dynamics (CFD) techniques. Simulation results indicated that both the out-of-plane and in-plane translational motions of the airfoil affect the unsteady aerodynamic forces significantly. In order to investigate the effects of blade vibration on the aerodynamic load on a large-scale HAWT blade during its operating lifetime, an aerodynamic model based on the Blade Element-Momentum (BEM) theory and the Beddoes-Leishman (B-L) dynamic stall model was proposed. The BEM model was revised to account for the vibration-induced velocity components in the calculation of the effective angle of attack. Aerodynamic load analysis of a 5 MW wind turbine was then performed and the impact of blade vibration on the lifetime aerodynamic fatigue loads was analysed.

show abstract

Experimental power curve of small-size wind turbines in turbulent urban environment

Cited by 172 publications

References 25 publications

Türki̇ye, Samsun-Havza Rüzgâr Enerji̇ Potansi̇yeli̇ Değerlendi̇rmesi̇

Türki̇ye, Samsun-Havza Rüzgâr Enerji̇ Potansi̇yeli̇ Değerlendi̇rmesi̇

Operational tests of a dual-rotor mini wind turbine

Vibration-induced aerodynamic loads on large horizontal axis wind turbine blades

Contact Info

Product

Resources

About