Dimensional Analysis of Power Prediction of a Real-Scale Wind Turbine Based on Wind-Tunnel Torque Measurement of Small-Scaled Models

A preliminary study of a horizontal-axis wind turbine (HAWT) design is carried out using a wind tunnel to obtain its aerodynamic characteristics. Utilization of data from the study to develop large-scale wind turbines requires further study. This paper aims to discuss the use of wind turbine data ob...

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Main Authors: Sutrisno, Sigit Iswahyudi, Setyawan Bekti Wibowo
Format: Article
Language:English
Published: MDPI AG 2018-09-01
Series:Energies
Subjects:
Online Access:http://www.mdpi.com/1996-1073/11/9/2374
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spelling doaj-c6ec828fedb740c19d2b3925caf90b472020-11-25T01:13:33ZengMDPI AGEnergies1996-10732018-09-01119237410.3390/en11092374en11092374Dimensional Analysis of Power Prediction of a Real-Scale Wind Turbine Based on Wind-Tunnel Torque Measurement of Small-Scaled ModelsSutrisno0Sigit Iswahyudi1Setyawan Bekti Wibowo2Department of Mechanical and Industrial Engineering, Faculty of Engineering, Universitas Gadjah Mada, Yogyakarta 55281, IndonesiaDepartment of Mechanical and Industrial Engineering, Faculty of Engineering, Universitas Gadjah Mada, Yogyakarta 55281, IndonesiaDepartment of Mechanical and Industrial Engineering, Faculty of Engineering, Universitas Gadjah Mada, Yogyakarta 55281, IndonesiaA preliminary study of a horizontal-axis wind turbine (HAWT) design is carried out using a wind tunnel to obtain its aerodynamic characteristics. Utilization of data from the study to develop large-scale wind turbines requires further study. This paper aims to discuss the use of wind turbine data obtained the wind-tunnel measurements to estimate the characteristics of wind turbines that have field size. One should measure the torque of two small-scale turbines inside the wind tunnel. The first small-scale turbine has a radius of 0.14 m, and the radius of the second small turbine is 0.19 m. Torque measurement results from both turbines were analyzed using the Buckingham π theorem to obtain a correlation between torsion and diameter variations. The obtained correlation equation was used to estimate the field measurement of turbine power with a radius of 1.2 m. The resulting correlation equation can be applied to approximate the energy generated by the turbine using the size of the field well in the operating area and the tip-speed ratio (λ) of the turbine design.http://www.mdpi.com/1996-1073/11/9/2374wind tunnelenlarge designBuckingham π theoremtorque-diameter correlationestimated powerfield size3-D bladestall delay
collection DOAJ
language English
format Article
sources DOAJ
author Sutrisno
Sigit Iswahyudi
Setyawan Bekti Wibowo
spellingShingle Sutrisno
Sigit Iswahyudi
Setyawan Bekti Wibowo
Dimensional Analysis of Power Prediction of a Real-Scale Wind Turbine Based on Wind-Tunnel Torque Measurement of Small-Scaled Models
Energies
wind tunnel
enlarge design
Buckingham π theorem
torque-diameter correlation
estimated power
field size
3-D blade
stall delay
author_facet Sutrisno
Sigit Iswahyudi
Setyawan Bekti Wibowo
author_sort Sutrisno
title Dimensional Analysis of Power Prediction of a Real-Scale Wind Turbine Based on Wind-Tunnel Torque Measurement of Small-Scaled Models
title_short Dimensional Analysis of Power Prediction of a Real-Scale Wind Turbine Based on Wind-Tunnel Torque Measurement of Small-Scaled Models
title_full Dimensional Analysis of Power Prediction of a Real-Scale Wind Turbine Based on Wind-Tunnel Torque Measurement of Small-Scaled Models
title_fullStr Dimensional Analysis of Power Prediction of a Real-Scale Wind Turbine Based on Wind-Tunnel Torque Measurement of Small-Scaled Models
title_full_unstemmed Dimensional Analysis of Power Prediction of a Real-Scale Wind Turbine Based on Wind-Tunnel Torque Measurement of Small-Scaled Models
title_sort dimensional analysis of power prediction of a real-scale wind turbine based on wind-tunnel torque measurement of small-scaled models
publisher MDPI AG
series Energies
issn 1996-1073
publishDate 2018-09-01
description A preliminary study of a horizontal-axis wind turbine (HAWT) design is carried out using a wind tunnel to obtain its aerodynamic characteristics. Utilization of data from the study to develop large-scale wind turbines requires further study. This paper aims to discuss the use of wind turbine data obtained the wind-tunnel measurements to estimate the characteristics of wind turbines that have field size. One should measure the torque of two small-scale turbines inside the wind tunnel. The first small-scale turbine has a radius of 0.14 m, and the radius of the second small turbine is 0.19 m. Torque measurement results from both turbines were analyzed using the Buckingham π theorem to obtain a correlation between torsion and diameter variations. The obtained correlation equation was used to estimate the field measurement of turbine power with a radius of 1.2 m. The resulting correlation equation can be applied to approximate the energy generated by the turbine using the size of the field well in the operating area and the tip-speed ratio (λ) of the turbine design.
topic wind tunnel
enlarge design
Buckingham π theorem
torque-diameter correlation
estimated power
field size
3-D blade
stall delay
url http://www.mdpi.com/1996-1073/11/9/2374
work_keys_str_mv AT sutrisno dimensionalanalysisofpowerpredictionofarealscalewindturbinebasedonwindtunneltorquemeasurementofsmallscaledmodels
AT sigitiswahyudi dimensionalanalysisofpowerpredictionofarealscalewindturbinebasedonwindtunneltorquemeasurementofsmallscaledmodels
AT setyawanbektiwibowo dimensionalanalysisofpowerpredictionofarealscalewindturbinebasedonwindtunneltorquemeasurementofsmallscaledmodels
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