How appropriate are sales power curves on complex or forested sites? Tomas Blodau July 2 nd 2012
|
|
- Belinda Robinson
- 3 years ago
- Views:
Transcription
1 How appropriate are sales power curves on complex or forested sites? Tomas Blodau July 2 nd 2012
2 Agenda Rotor Aerodynamics PC Measurement Analysis Alternative Techniques for PC Measurement Summary 2
3 Turbulence intensity Rotor Aerodynamics Variable Site Conditions All sites show varying wind conditions Turbine design needs to account for this. Wind Speed 3
4 c_l [-] Rotor Aerodynamics Influence of profile properties u α Des,hist α PostStall α Stall α Stall historic profile current REpower profile u α Des,RE PostStall v1 v1 v1 v1 lift coefficient over angle of attack Lift = ρ/2 A c L v r 2 REpowers philosophy is to have a sufficient angle margin to stall. smooth stall behaviour. α Design, REpower α Design historic α Stall α PostStall currentl REpower profile alpha [ ] historic wind power profile 4
5 c_l [-] Rotor Aerodynamics Airfoil characteristics section A-A u α V 1,HH = const v 1,upper blade section A-A no shear section B-B lift coefficient over angle of attack u α v 1, lower blade section B-B α A-A = α B-B alpha [ ] 5
6 c_l [-] Rotor Aerodynamics Airfoil characteristics shear influence section A-A V 1,HH =const u α v 1,upper blade section A-A very normal high shear (IEC) shear exponent = section B-B lift coefficient over angle of attack u α v 1, lower blade section B-B α B-B α A-A alpha [ ] 6
7 c_l [-] Rotor Aerodynamics Airfoil characteristics roughness influence section A-A u α V 1,HH = const v 1,upper blade section A-A high shear section B-B influence of roughness on lift u α v 1, lower blade section B-B α B-B α A-A alpha [ ] clean rough 7
8 Rotor Aerodynamics Stall power and aerodynamic safety factor u chord u chord α Des α Des short chord (slender blade design) v1 v1 REpower design Lift = ρ/2 A c L v r 2 A = f(,chord) Chord Profile Thickness Contamination Sensitivity Stall Power Loads 8
9 mechanical rotorpower Rotor Aerodynamics Stall power and aerodynamic safety factor Mechanical rotorpower against wind at nominal rotorspeed and design blade set angle sufficent stall power insufficent stall power nominal power wind (m/s) For high performance under varying conditions REpower blades are designed with high Aerodynamic Safety Factors 9
10 Rotor Aerodynamics Aerodynamic safety factors Wind turbine using REpower blade design (no stall effects seen) Wind turbine showing stall effects 10
11 Agenda Rotor Aerodynamics PC Measurement Analysis Alternative Techniques for PC Measurement Summary 11
12 PC Measurement Analysis Measured power curves - practice 13
13 PC Measurement Analysis Power curve verification reference list 14
14 Agenda Rotor Aerodynamics PC Measurement Analysis Alternative Techniques for PC Measurement Summary 15
15 Alternative Techniques for PC Measurement Power curve verification today Met mast is industry standard and is required by the IEC
16 Alternative Techniques for PC Measurement Power curve verification Nacelle Anemometer IEC nearly complete (FDIS) Very high uncertainty approach: 15 to 20% uncertainty 17
17 Alternative Techniques for PC Measurement Power Curve Measurements Anticipated Development 1. Current Status 2. Draft IEC 3. Future I 4. Future II A 9 A 8 A 7 A 6 A 5 A 4 TE HU A 3 PA A 2 A 1 TE HU PA 18
18 Alternative Techniques for PC Measurement Power curve verification Sample comparisons show promising results: Normalized AEP compared to guaranteed power curve (100 %) Met mast LiDAR (Hub height) LiDAR (Equivalent wind speed) % % % %
19 Alternative Techniques for PC Measurement Power curve verification future Stand alone ground based LiDAR will be acceptable Further in the future nacelle based LiDAR (of special interest offshore) 20
20 Agenda Rotor Aerodynamics PC Measurement Analysis Alternative Techniques for PC Measurement Summary 21
21 Summary Wind conditions are highly variable on all sites Good aerodynamic blade design can handle highly variable conditions Power curve measurement show stable results for a wide variety of conditions 22
22 REpower Systems SE All rights reserved. No part of this document may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photography, recording, or any information storage and retrieval system, without permission from REpower Systems SE. 23
INFLUENCES OF VERTICAL WIND PROFILES ON POWER PERFORMANCE MEASUREMENTS
Abstract INFLUENCES OF VERTICAL WIND PROFILES ON POWER PERFORMANCE MEASUREMENTS U. Bunse, H. Mellinghoff DEWI GmbH, Ebertstr. 96, D 26382 Wilhelmshaven e mail: u.bunse@dewi.de The IEC 61400 12 1 [1] and
More informationSome scientific challenges in aerodynamics for wind turbines
Some scientific challenges in aerodynamics for wind turbines Christian Bak Senior Scientist Team Leader: Aerodynamics, aeroacoustics, airfoil and blade design Technical University of Denmark DTU Wind Energy
More informationPOWER CURVE MEASUREMENT EXPERIENCES, AND NEW APPROACHES
POWER CURVE MEASUREMENT EXPERIENCES, AND NEW APPROACHES EWEA Resource Assessment Workshop 2013 - Dublin Mark Young - Head of Department, Renewables Objectives Overview of reasons for power performance
More informationPower Performance Testing: Truly Useful of Just Box Ticking. Mark Young 2 July 2012
Power Performance Testing: Truly Useful of Just Box Ticking Mark Young DNV KEMA Energy & Sustainability Part of DNV Group an independent foundation with HQ in Norway founded in 1864 with 11,000 employees
More informationEFFECTS OF COMPLEX WIND REGIMES ON TURBINE PERFORMANCE
EFFECTS OF COMPLEX WIND REGIMES ON TURBINE PERFORMANCE Elisabeth Rareshide, Andrew Tindal 1, Clint Johnson, AnneMarie Graves, Erin Simpson, James Bleeg, Tracey Harris, Danny Schoborg Garrad Hassan America,
More informationNordex SE. Capital Markets Day Products & Sales - Lars Bondo Krogsgaard
Nordex SE Capital Markets Day Products & Sales - Lars Bondo Krogsgaard Rostock, 13 October 2011 SUMMARY The situation in the wind industry has changed: Attractive medium-term growth prospects Overcapacity
More informationENERGY YIELD ASSESSMENT
Module 2.4-2 ENERGY YIELD ASSESSMENT Gerhard J. Gerdes Workshop on Renewable Energies November 14-25, 25 Nadi, Republic of the Fiji Islands Contents power curve of wind turbine and international regulations
More informationNACA Nomenclature NACA 2421. NACA Airfoils. Definitions: Airfoil Geometry
0.40 m 0.21 m 0.02 m NACA Airfoils 6-Feb-08 AE 315 Lesson 10: Airfoil nomenclature and properties 1 Definitions: Airfoil Geometry z Mean camber line Chord line x Chord x=0 x=c Leading edge Trailing edge
More informationENERCON WIND TURBINES
Sales ENERCON GmbH Dreekamp 5 2665 Aurich Germany Phone +49 494192 7 Fax +49 4941 92 71 9 vertrieb@enercon.de E-33 E-44 E-48 E-53 E-7 E-82 ENERCON WIND TURBINES PRODUCT OVERVIEW ENERCON GmbH Dreekamp 5
More informationCFD SIMULATIONS OF WAKE EFFECTS AT THE ALPHA VENTUS OFFSHORE WIND FARM
CFD SIMULATIONS OF WAKE EFFECTS AT THE ALPHA VENTUS OFFSHORE WIND FARM Annette Westerhellweg, Thomas Neumann DEWI GmbH, Ebertstr. 96, 26382 Wilhelmshaven, Germany Phone: +49 (0)4421 4808-828 Fax: +49 (0)4421
More informationImproved Bankability. The Ecofys position on LiDAR use. Summary
Improved Bankability The Ecofys position on LiDAR use Summary A key goal of a wind measurement campaign is to reduce project uncertainty, as this will improve bankability in terms of better financing terms
More informationSound Power measurements according to IEC 61400-11
Sound Power measurements according to IEC 61400-11 Siemens Wind Power All Rights Reserved 2011 Sound Power measurements according to IEC 61400-11 Tomas Hansen, Lars Enggaard email: trh@siemens.com Page
More informationPractice Problems on Boundary Layers. Answer(s): D = 107 N D = 152 N. C. Wassgren, Purdue University Page 1 of 17 Last Updated: 2010 Nov 22
BL_01 A thin flat plate 55 by 110 cm is immersed in a 6 m/s stream of SAE 10 oil at 20 C. Compute the total skin friction drag if the stream is parallel to (a) the long side and (b) the short side. D =
More informationCritical Limitations of Wind Turbine Power Curve Warranties
Critical Limitations of Wind Turbine Power Curve Warranties A. Albers Deutsche WindGuard Consulting GmbH, Oldenburger Straße 65, D-26316 Varel, Germany E-mail: a.albers@windguard.de, Tel: (++49) (0)4451/9515-15,
More informationDevelopment and Design of a Form- Adaptive Trailing Edge for Wind Turbine Blades
Development and Design of a Form- Adaptive Trailing Edge for Wind Turbine Blades Master Thesis Alireza Taheri REMENA Batch 5 Matriculation Number - 33105532 Institut Thermische Energietechnik 10.02.2015
More informationAERODYNAMIC ANALYSIS OF BLADE 1.5 KW OF DUAL ROTOR HORIZONTAL AXIS WIND TURBINE
AERODYNAMIC ANALYSIS OF BLADE 1.5 KW OF DUAL ROTOR HORIZONTAL AXIS WIND TURBINE HITENDRA KURMI Research scholar, School of Energy and Environmental Managment,UTD, RGPV Bhopal,MP,INDIA htr.ptl@gmail.com
More informationAdjustment of Anemometer Readings for Energy Production Estimates WINDPOWER June 2008 Houston, Texas
Adjustment of Anemometer Readings for Energy Production Estimates WINDPOWER June 2008 Houston, Texas Matthew Filippelli, Julien Bouget, Michael Brower, and Dan Bernadett AWS Truewind, LLC 463 New Karner
More informationNew Airfoil in LM s Wind Tunnel: High Efficiency and Roughness Insensitivity
New Airfoil in LM s Wind Tunnel: High Efficiency and Roughness Insensitivity Christian Bak, Helge A. Madsen, Mac Gaunaa, Peter B. Andersen, Mads Døssing Risø DTU Peter Fuglsang, Stefano Bove LM Glasfiber
More informationLift and Drag on an Airfoil ME 123: Mechanical Engineering Laboratory II: Fluids
Lift and Drag on an Airfoil ME 123: Mechanical Engineering Laboratory II: Fluids Dr. J. M. Meyers Dr. D. G. Fletcher Dr. Y. Dubief 1. Introduction In this lab the characteristics of airfoil lift, drag,
More informationAdvanced nacelle anemometry and SCADA-data, analysis techniques and limitations. Frank Ormel Chief Specialist in Product Integration Vestas
Advanced nacelle anemometry and SCADA-data, analysis techniques and limitations Frank Ormel Chief Specialist in Product Integration Vestas Outline Introduction State of the art Advanced methods Nacelle
More informationCOMPARISON OF LIDARS, GERMAN TEST STATION FOR REMOTE WIND SENSING DEVICES
COMPARISON OF LIDARS, GERMAN TEST STATION FOR REMOTE WIND SENSING DEVICES A. Albers, A.W. Janssen, J. Mander Deutsche WindGuard Consulting GmbH, Oldenburger Straße, D-31 Varel, Germany E-mail: a.albers@windguard.de,
More informationGerman Test Station for Remote Wind Sensing Devices
German Test Station for Remote Wind Sensing Devices A. Albers, A.W. Janssen, J. Mander Deutsche WindGuard Consulting GmbH, Oldenburger Straße, D-31 Varel, Germany E-mail: a.albers@windguard.de, Tel: (++9)
More informationHow Noise is Generated by Wind Turbines The mechanisms of noise generation. Malcolm Hayes Hayes McKenzie Partnership Ltd Machynlleth & Salisbury
How Noise is Generated by Wind Turbines The mechanisms of noise generation Malcolm Hayes Hayes McKenzie Partnership Ltd Machynlleth & Salisbury Overview Main sources of noise from wind turbines Causes
More informationRisø-R-1374(EN) Design of a 21 m Blade with Risø-A1 Airfoils for Active Stall Controlled Wind Turbines
Risø-R-1374(EN) Design of a 21 m Blade with Risø-A1 Airfoils for Active Stall Controlled Wind Turbines Peter Fuglsang, Risø National Laboratory Ole Sangill, Norwin A/S Peter Hansen, LM Glasfiber A/S Risø
More informationComparison of Resource and Energy Yield Assessment Procedures
Comparison of Resource and Energy Yield Assessment Procedures Niels G. Mortensen and Hans E. Jørgensen Wind Energy Division, Risø DTU EWEA Wind Resource Assessment Technology Workshop 2011 F Acknowledgements
More informationGE Power & Water Renewable Energy. Digital Wind Farm THE NEXT EVOLUTION OF WIND ENERGY. www.ge.com/wind
GE Power & Water Renewable Energy Digital Wind Farm THE NEXT EVOLUTION OF WIND ENERGY www.ge.com/wind GE S DIGITAL WIND FARM PITCH Since entering the wind industry in 2002, GE Power & Water s Renewable
More informationTheory of turbo machinery / Turbomaskinernas teori. Chapter 3
Theory of turbo machinery / Turbomaskinernas teori Chapter 3 D cascades Let us first understand the facts and then we may seek the causes. (Aristotle) D cascades High hub-tip ratio (of radii) negligible
More informationINTERNATIONAL STANDARD
INTERNATIONAL STANDARD IEC 61400-2 Second edition 2006-03 Wind turbines Part 2: Design requirements for small wind turbines This English-language version is derived from the original bilingual publication
More informationForest Experiments Ferhat Bingöl
Forest Experiments Ferhat Bingöl f bi@ i dt dk febi@risoe.dtu.dk PostDoc Risø DTU 2009 Outlook Instruments Experiment Sites Models Results Conclusion Questions 2 Risø DTU, Technical University of Denmark
More informationNational-Scale Wind Resource Assessment for Power Generation
National-Scale Wind Resource Assessment for Power Generation Modern Approaches to Support the Development of a Nation s Wind Energy Potential E. Ian Baring-Gould Asia Clean Energy Forum 2013 June 28, 2013
More informationQUALITY OF WIND POWER. How does quality affect the cost of electricity generation from wind power?
QUALITY OF WIND POWER How does quality affect the cost of electricity generation from wind power? QUALITY OF WIND POWER Wind power is a cornerstone in the green transition of the power sector, and onshore
More informationDocument number #12 DNS13006. Authors #20 Telephone: Date #40 AUGUST 2013
#0 INSPECTION REPORT Discipline or report series #0 Inspection VESTAS wind turbines Title #5 VESTAS WIND TURBINE #2 Report number #52 #3 Authors #20 Telephone: Date #40 AUGUST 203 Summary #60 6 UNIT VESTAS
More informationÓbuda University Power System Department. The wind. Dr. Péter Kádár Óbuda University, Power System Department, Hungary kadar.peter@kvk.uni-obuda.
The wind Dr. Péter Kádár,, Hungary kadar.peter@kvk.uni-obuda.hu Draft Wind basics Drivers of the wind energy application The energy of the wind Dynamic simulation Wind forecast Wind basics - Patra, 2012
More informationEVALUATION OF ZEPHIR
EVALUATION OF ZEPHIR A. Albers Deutsche WindGuard Consulting GmbH, Oldenburger Straße 5, D-31 Varel, Germany E-mail: a.albers@windguard.de, Tel: (++9) ()51/9515-15, Fax: : (++9) ()51/9515-9 Summary Since
More informationVirtual Met Mast verification report:
Virtual Met Mast verification report: June 2013 1 Authors: Alasdair Skea Karen Walter Dr Clive Wilson Leo Hume-Wright 2 Table of contents Executive summary... 4 1. Introduction... 6 2. Verification process...
More informationA. Hyll and V. Horák * Department of Mechanical Engineering, Faculty of Military Technology, University of Defence, Brno, Czech Republic
AiMT Advances in Military Technology Vol. 8, No. 1, June 2013 Aerodynamic Characteristics of Multi-Element Iced Airfoil CFD Simulation A. Hyll and V. Horák * Department of Mechanical Engineering, Faculty
More informationDESIGN CRITERIA AND OPERATIONAL LIMITS FOR AXIAL FLOW FANS OPERATED IN PARALLEL MODE
- 90 - DESIGN CRITERIA AND OPERATIONAL LIMITS FOR AXIAL FLOW FANS OPERATED IN PARALLEL MODE Dr.-Ing. Schiller, F. Howden Ventilatoren GmbH, Heidenheim ABSTRACT Axial Flow Fans are the preferred fan types
More informationWind Energy Conversion Systems
Wind Energy Conversion Systems Lecture Notes by Prof. Shireesh B. Kedare Adjunct Assistant Professor ENERGY SYSTEMS ENGINEERING INDIAN INSTITUTE OF TECHNOLOGY, BOMBAY Powai, Mumbai 400076, INDIA Contents
More informationThe aerodynamic center
The aerodynamic center In this chapter, we re going to focus on the aerodynamic center, and its effect on the moment coefficient C m. 1 Force and moment coefficients 1.1 Aerodynamic forces Let s investigate
More informationV52-850 kw The turbine that goes anywhere
V2-8 kw The turbine that goes anywhere Versatile, efficient, dependable and popular The highly efficient operation and flexible configuration of the V2 make this turbine an excellent choice for all kinds
More informationSmall wind PV-curves Schoondijke
PV-curves of 7 small wind turbines based on test results of Schoondijke, The Netherlands Repport 1009000.R01 September 24, 2010 . c Ingreenious BV. No part of this publication may be reproduced, stored
More informationResearch and Education in the Field of Wind Energy at the Technical University of Denmark
Research and Education in the Field of Wind Energy at the Technical University of Denmark Jens Nørkær Sørensen Head of Section of Fluid Mechanics DTU Wind Energy DTU Wind Energy The department, which was
More informationModels of Lift and Drag Coefficients of Stalled and Unstalled Airfoils in Wind Turbines and Wind Tunnels
NASA/CR 2008-215434 Models of Lift and Drag Coefficients of Stalled and Unstalled Airfoils in Wind Turbines and Wind Tunnels David A. Spera Jacobs Technology, Inc., Cleveland, Ohio An errata was added
More informationHALE UAV: AeroVironment Pathfinder
HALE UAV: AeroVironment Pathfinder Aerodynamic and Stability Analysis Case Study: Planform Optimization Desta Alemayehu Elizabeth Eaton Imraan Faruque Photo courtesy NASA Dryden Photo Gallery 1 Pathfinder
More informationAerodynamic Department Institute of Aviation. Adam Dziubiński CFD group FLUENT
Adam Dziubiński CFD group IoA FLUENT Content Fluent CFD software 1. Short description of main features of Fluent 2. Examples of usage in CESAR Analysis of flow around an airfoil with a flap: VZLU + ILL4xx
More information1.0 Background 1.1 Historical background 1.2 Cost of wind turbines
1.0 Background 1.1 Historical background Wind energy has been used for thousands of years for milling grain, pumping water and other mechanical power applications. Wind power is not a new concept. The
More informationWind resources and wind turbine wakes in large wind farms. Professor R.J. Barthelmie Atmospheric Science and Sustainability
Wind resources and wind turbine wakes in large wind farms Professor R.J. Barthelmie Atmospheric Science and Sustainability Overview Wind resource of Egypt Based on Wind Atlas for Egypt Wind turbine wakes
More informationExperimental Wind Turbine Aerodynamics Research @LANL
Experimental Wind Turbine Aerodynamics Research @LANL B. J. Balakumar, Los Alamos National Laboratory Acknowledgment: SuhasPol(Post-doc), John Hoffman, Mario Servin, Eduardo Granados (Summer students),
More informationDeutsche WindGuard. WindGuard North America Varel / Berlin /Bremerhaven, Germany Goderich, Canada. info@windguard.de www.windguard.
Deutsche WindGuard WindGuard North America Varel / Berlin /Bremerhaven, Germany Goderich, Canada info@windguard.de www.windguard.de Test- and Calibration Laboratory with Quality Management System according
More informationMicropower from Tidal Turbines
Micropower from Tidal Turbines Brian Polagye 1, Rob Cavagnaro 1, and Adam Niblick 2 1 Northwest National Marine Renewable Energy Center, University of Washington 2 Creare, Inc. 13th International Symposium
More informationPower Performance Measured Using a Nacelle-mounted LiDAR
Power Performance Measured Using a Nacelle-mounted LiDAR R. Wagner, M. Courtney, T. F. Pedersen; DTU Wind Energy, Risø Campus, Roskilde, Denmark R. Wagner External Article English Introduction Wind turbine
More informationDesign and Structural Analysis of the Ribs and Spars of Swept Back Wing
Design and Structural Analysis of the Ribs and Spars of Swept Back Wing Mohamed Hamdan A 1, Nithiyakalyani S 2 1,2 Assistant Professor, Aeronautical Engineering & Srinivasan Engineering College, Perambalur,
More informationTHE EFFECT OF BLADE ANGLE AND SIZE ON WIND TURBINE PERFORMANCE
THE EFFECT OF BLADE ANGLE AND SIZE ON WIND TURBINE PERFORMANCE Anish Bhattacharya, 8 th Grade, Unity Point School District 140 PURPOSE We have experienced a major fall in the economy in the recent past.
More informationWorking Group 1: Wind Energy Resource
Wind Energy Technology Platform Working Group 1: Wind Energy Resource Presented by Ignacio Martí CENER imarti@cener.com Authors: wg1 participants WG1 Participants Erik Lundtang Petersen (Chairman) Risø
More informationGE Energy Wind Technology and Windfarm Overview
GE Energy Wind Technology and Windfarm Overview Forum on Renewable Energy Development in Myanmar November 1, 2012 saumil.shah@ge.com Topics for discussion Introduction to Wind Power technology Windfarm
More informationApplication of CFD Simulation in the Design of a Parabolic Winglet on NACA 2412
, July 2-4, 2014, London, U.K. Application of CFD Simulation in the Design of a Parabolic Winglet on NACA 2412 Arvind Prabhakar, Ayush Ohri Abstract Winglets are angled extensions or vertical projections
More informationUpwind 20MW Wind Turbine Pre- Design
Upwind 20MW Wind Turbine Pre- Design Blade design and control Johan Peeringa, Remco Brood(WMC), Ozlem Ceyhan, Wouter Engels, Gerben de Winkel(WMC) ECN-E--11-017 December 2011 Acknowledgement This project
More informationNACA 2415- FINDING LIFT COEFFICIENT USING CFD, THEORETICAL AND JAVAFOIL
NACA 2415- FINDING LIFT COEFFICIENT USING CFD, THEORETICAL AND JAVAFOIL Sarfaraj Nawaz Shaha 1, M. Sadiq A. Pachapuri 2 1 P.G. Student, MTech Design Engineering, KLE Dr. M S Sheshgiri College of Engineering
More informationTECHNICAL SPECIFICATION
TECHNICAL SPECIFICATION IEC TS 61400-14 First edition 2005-03 Wind turbines Part 14: Declaration of apparent sound power level and tonality values IEC 2005 Copyright - all rights reserved No part of this
More informationRelative Power Curve Measurements Using Turbine Mounted, Continuous-Wave Lidar
Relative Power Curve Measurements Using Turbine Mounted, Continuous-Wave Lidar Chris Slinger, Matthew Leak, Mark Pitter, Michael Harris ZephIR Ltd., The Old Barns, Fairoaks Farm, Hollybush, Ledbury, Herefordshire,
More informationWIND TURBINE TECHNOLOGY
Module 2.2-2 WIND TURBINE TECHNOLOGY Electrical System Gerhard J. Gerdes Workshop on Renewable Energies November 14-25, 2005 Nadi, Republic of the Fiji Islands Contents Module 2.2 Types of generator systems
More informationUSE OF REMOTE SENSING FOR WIND ENERGY ASSESSMENTS
RECOMMENDED PRACTICE DNV-RP-J101 USE OF REMOTE SENSING FOR WIND ENERGY ASSESSMENTS APRIL 2011 FOREWORD (DNV) is an autonomous and independent foundation with the objectives of safeguarding life, property
More informationPrediction of airfoil performance at high Reynolds numbers
Downloaded from orbit.dtu.dk on: Jul 01, 2016 Prediction of airfoil performance at high Reynolds numbers. Sørensen, Niels N.; Zahle, Frederik; Michelsen, Jess Publication date: 2014 Document Version Publisher's
More informationComputational Modeling of Wind Turbines in OpenFOAM
Computational Modeling of Wind Turbines in OpenFOAM Hamid Rahimi hamid.rahimi@uni-oldenburg.de ForWind - Center for Wind Energy Research Institute of Physics, University of Oldenburg, Germany Outline Computational
More informationin-service inspections www.sgs.com
in-service inspections www.sgs.com Minimising down -time for wind turbines One of the major concerns in investing in wind farm projects is related to turbine availability, which represents the risk of
More informationWIND TURBINE DESIGN. N.D. Fowkes, A.D. Fitt, D.P. Mason and F. Bruce
WIND TURBINE DESIGN N.D. Fowkes, A.D. Fitt, D.P. Mason and F. Bruce Industry representative Richard Naidoo Durban University of Technology, Durban, Natal, South Africa Abstract The brief was to design
More informationSiemens Wind Turbine SWT-2.3-108. The new productivity benchmark. www.siemens.com/wind
Siemens Wind Turbine SWT-2.3-108 The new productivity benchmark www.siemens.com/wind The industry standard, redefined The Siemens 2.3-MW family has firmly established itself as the tried and tested workhorse
More informationOverturning Stability of Offshore Wind Power Substructure with Bucket Foundation
Website: www.ijetae.com (ISSN 2250-2459, ISO 9001:2008 Certified Journal, Volume 5, Issue 10, October 2015) Overturning Stability of Offshore Wind Power Substructure with Bucket Foundation Young-Jun You
More informationOnshore Services for. Wind Farms. Developers, Operators, Owners, Lenders & Investors
Onshore Services for Wind Farms Developers, Operators, Owners, Lenders & Investors Research & Studies Customers benefit from our in-depth knowledge based on UL participation in a number of state-ofthe-art
More informationRelevance of Modern Optimization Methods in Turbo Machinery Applications
Relevance of Modern Optimization Methods in Turbo Machinery Applications - From Analytical Models via Three Dimensional Multidisciplinary Approaches to the Optimization of a Wind Turbine - Prof. Dr. Ing.
More informationHigh-Lift Systems. High Lift Systems -- Introduction. Flap Geometry. Outline of this Chapter
High-Lift Systems Outline of this Chapter The chapter is divided into four sections. The introduction describes the motivation for high lift systems, and the basic concepts underlying flap and slat systems.
More informationCFD Calculations of S809 Aerodynamic Characteristics 1
Walter P. Wolfe Engineering Sciences Center Sandia National Laboratories Albuquerque, NM 87185-0836 Stuart S. Ochs Aerospace Engineering Department Iowa State University Ames, IA 50011 CFD Calculations
More informationWind Resource Assessment for BETHEL, ALASKA Date last modified: 2/21/2006 Compiled by: Mia Devine
813 W. Northern Lights Blvd. Anchorage, AK 99503 Phone: 907-269-3000 Fax: 907-269-3044 www.akenergyauthority.org Wind Resource Assessment for BETHEL, ALASKA Date last modified: 2/21/2006 Compiled by: Mia
More informationNUMERICAL ANALYSIS OF WELLS TURBINE FOR WAVE POWER CONVERSION
Engineering Review Vol. 32, Issue 3, 141-146, 2012. 141 NUMERICAL ANALYSIS OF WELLS TURBINE FOR WAVE POWER CONVERSION Z. 1* L. 1 V. 2 M. 1 1 Department of Fluid Mechanics and Computational Engineering,
More informationGE Renewable Energy. GE s 3 MW Platform POWERFUL AND EFFICIENT. www.ge.com/wind
GE Renewable Energy GE s 3 MW Platform POWERFUL AND EFFICIENT www.ge.com/wind GE S 3 MW PLATFORM PITCH Since entering the wind industry in 2002, GE Renewable Energy has invested more CONTROLS than $2 billion
More informationDatabases. by David Cerda Salzmann
Databases by David Cerda Salzmann In the previous lecture... What data you need What you use it for This hour: where to get data from Introduction OWT Design Procedure Fatigue Loads Extreme Loads Site-specific
More informationLetter Report No. 100413407CRT-004 Project No. G100413407
3933 US Route 11 Cortland, NY 13045 Telephone: (607) 753-6711 Facsimile: (607) 753-1045 www.intertek.com Letter Report No. 100413407CRT-004 Project No. G100413407 Mr. Steve Turek Phone: 952-447-6064 Wind
More informationExcerpts from: Performance, Duration and Acoustic test reports for the Skystream 3.7 wind generator
Excerpts from: Performance, Duration and Acoustic test reports for the Skystream 3.7 wind generator Report One: Power performance measurement on the Skystream 3.7 according to IEC 61400-12-1 and BWEA Report
More informationWind Turbine Design of Turbine Blade
Wind Turbine Design of Turbine Blade Ryo S. Amano University of Wisconsin, Milwaukee, U.S.A. Abstract As renewable energy sources become increasingly popular, wind power provides a safe and dependable
More informationTesting the Performance of a Ground-based Wind LiDAR System One Year Intercomparison at the Offshore Platform FINO1
Testing the Performance of a Ground-based Wind LiDAR System One Year Intercomparison at the Offshore Platform FINO1 B. Cañadillas, A. Westerhellweg, T. Neumann; DEWI GmbH, Wilhelmshaven B. Canadillas English
More informationOutline. Introduction to Wind Energy. US Wind Energy Installations. ME 483 Alternative Energy Engineering II 1
Wind Power Introduction February, Introduction to Wind Energy Larry Caretto Mechanical Engineering 48 Alternative Energy Engineering II February, Outline Current use of wind energy Advantages and disadvantages
More informationDESIGN OF THE MODERN FAMILY OF HELICOPTER AIRFOILS 51
DESIGN OF THE MODERN FAMILY OF HELICOPTER AIRFOILS Wojciech KANIA, Wieńczysław STALEWSKI, Bogumiła ZWIERZCHOWSKA Institute of Aviation Summary The paper presents results of numerical design and experimental
More informationDIRECT MATCHING TO GRID WITHOUT INVERTER VARIABLE PITCH. 20/24/30 mt TOWER WITH HYDRAULIC SYSTEM YAWING SYSTEM SAFETY LEVELS PLC CONTROL
Wind turbine EW 50 Ergo Wind srl can boast of thirty years experience in the field of renewable energies as a producer of low environmental impact systems. The core business is represented by small wind
More informationDAN-AERO MW: Detailed aerodynamic measurements on a full scale MW wind turbine
DAN-AERO MW: Detailed aerodynamic measurements on a full scale MW wind turbine Christian Bak, Helge A. Madsen, Uwe Schmidt Paulsen, Mac Gaunaa Risø DTU National Laboratory for Sustainable Energy, DK-4000
More informationXFlow CFD results for the 1st AIAA High Lift Prediction Workshop
XFlow CFD results for the 1st AIAA High Lift Prediction Workshop David M. Holman, Dr. Monica Mier-Torrecilla, Ruddy Brionnaud Next Limit Technologies, Spain THEME Computational Fluid Dynamics KEYWORDS
More informationWind Turbine Post-Stall Airfoil Performance Characteristics Guidelines for Blade-Element Momentum Methods
October 004 NREL/CP-500-36900 Wind Turbine Post-Stall Airfoil Performance Characteristics Guidelines for Blade-Element Momentum Methods Preprint J. Tangler National Renewable Energy Laboratory J. David
More informationAeroelastic models for wind turbines
Aeroelastic models for wind turbines how accurate does the flow model have to be? Helge Aagaard Madsen Georg Pirrung Torben J. Larsen Section Aeroelastic Design Department of Wind Energy hama@dtu.dk How
More informationSimple methodology to map and forecast icing for wind power
Simple methodology to map and forecast icing for wind power Winterwind 2014 Sundsvall 11-12.2.2014 Ville Lehtomäki, Simo Rissanen VTT Technical Research Centre of Finland 2 Outline Motivation, market potential
More information2.1MW PLATFORM Generations ahead
2.1MW PLATFORM Generations ahead WORLD S FIRST AND TALLEST LATTICE-TUBULAR HYBRID TOWER Innovative 120 meter hybrid tower with lattice structure at the base & tubular upper section Increased hub height
More informationCFD Analysis of Swept and Leaned Transonic Compressor Rotor
CFD Analysis of Swept and Leaned Transonic Compressor Nivin Francis #1, J. Bruce Ralphin Rose *2 #1 Student, Department of Aeronautical Engineering& Regional Centre of Anna University Tirunelveli India
More informationThe DTU 10-MW Reference Wind Turbine
Downloaded from orbit.dtu.dk on: Nov 22, 2015 The DTU 10-MW Reference Wind Turbine Bak, Christian; Zahle, Frederik; Bitsche, Robert; Kim, Taeseong; Yde, Anders; Henriksen, Lars Christian; Hansen, Morten
More informationSiemens D7 platform 6.0-MW and 7.0-MW direct drive wind turbines. The new standard for offshore. siemens.com/wind
Siemens D7 platform 6.0-MW and 7.0-MW direct drive wind turbines The new standard for offshore siemens.com/wind The first SWT-6.0-154 prototype Siemens, the offshore leader Intelligent ways to drive down
More informationOPERATION AND MAINTENANCE. Levent İshak Service Manager, Vestas Turkey
OPERATION AND MAINTENANCE Levent İshak Service Manager, Vestas Turkey IWPC 2015-Istanbul- April 2015 If your new car drove as much as a wind turbine, it would have to be scrapped after 6 months*. ) The
More informationINTERNATIONAL STANDARD
INTERNATIONAL STANDARD IEC 61400-1 Second edition 1999-02 Wind turbine generator systems Part 1: Safety requirements Aérogénérateurs Partie 1: Spécifications de sécurité IEC 1999 Copyright - all rights
More informationComparison between OpenFOAM CFD & BEM theory for variable speed variable pitch HAWT
ITM Web of Conferences 2, 05001 (2014) DOI: 10.1051/itmconf/20140205001 C Owned by the authors, published by EDP Sciences, 2014 Comparison between OpenFOAM CFD & BEM theory for variable speed variable
More informationThe BASIS module in WindPRO is necessary for the use of any of the other calculation modules. It contains the four following elements:
The BASIS module in WindPRO is necessary for the use of any of the other calculation modules. It contains the four following elements: 1. Project Management / Globe (Project Explorer) 2. WTG Catalogue
More informationWIND RESOURCE OF MICROREGIONS IN SOUTH AND NOTHEAST OF BRAZIL: AN EVALUATION OF METEROLOGICAL DATA AND COMPUTACIONAL TOOL
EWEA 211 - Europe s Premier Wind Energy Event 1-17 March 211, Brussels, Belgium WIN RESOURCE OF MICROREGIONS IN SOUTH AN NOTHEAST OF BRAZIL: AN EVALUATION OF METEROLOGICAL ATA AN COMPUTACIONAL TOOL Jorge
More informationTitle: IEC WT 01 vs. IEC 61400-22 Development of a new standard and innovations in certification of Wind Turbines. mike.woebbeking@gl-group.
Title: IEC WT 01 vs. IEC 61400-22 Development of a new standard and innovations in certification of Wind Turbines Author: Address: Mike Woebbeking Germanischer Lloyd Industrial Services GmbH, Business
More informationControlling Wind in ECN s Scaled Wind Farm
Controlling Wind in ECN s Scaled Wind Farm J.W. Wagenaar L.A.H. Machielse J.G. Schepers j.wagenaar@ecn.nl machielse@ecn.nl schepers@ecn.nl ECN Wind Energy ECN Wind Energy ECN Wind Energy Abstract ECN holds
More informationIntegrating Wind Energy into the Design of Tall Buildings A Case Study of the Houston Discovery Tower WINDPOWER 2008
Integrating Wind Energy into the Design of Tall Buildings A Case Study of the Houston Discovery Tower WINDPOWER 2008 Brad C. Cochran, MS Rick R. Damiani, PhD, P.E. (Europe) CPP, Inc. 1415 Blue Spruce Drive
More information