Analysis of counter-rotating wind turbines

Wen Zhong Shen; Vinod Arun Kumar Zakkam; Jens Nørkær Sørensen; Kari Appa

Analysis of counter-rotating wind turbines

Wen Zhong Shen
, Vinod Arun Kumar Zakkam
, Jens Nørkær Sørensen
, Kari Appa

Appa Renewable Energy Systems, Inc.

Research output: Contribution to journal › Conference article › Research › peer-review

Abstract

This paper presents a study on the performance of a wind turbine with two counter-rotating (CRWT) rotors. The characteristics of the two counter-rotating rotors are on a 3-bladed Nordtank 500 kW rotor. The analysis has been carried out by using an Actuator Line technique implemented in the Navier-Stokes code EllipSys3D. The analysis shows that the Annual Energy Production can be increased to about 43.5 %, as compared to a wind turbine with a single rotor. In order to determine the optimal settings of the CRWT turbine, parameters such as distance between two rotors and rotational speed have been studied.

Original language	English
Book series	Journal of Physics: Conference Series (Online)
Volume	75
Pages (from-to)	9 pages
ISSN	1742-6596
Publication status	Published - 2007
Event	2nd International Conference on "The Science of Making Torque From Wind" - Kgs. Lyngby, Denmark Duration: 28 Aug 2007 → 31 Aug 2007 Conference number: 2 http://www.twind2007.mek.dtu.dk/

Conference

Conference	2nd International Conference on "The Science of Making Torque From Wind"
Number	2
Country/Territory	Denmark
City	Kgs. Lyngby
Period	28/08/2007 → 31/08/2007
Internet address	http://www.twind2007.mek.dtu.dk/

Keywords

Counter Rotating Wind Turbine
Actuator Line Model

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http://www.iop.org/EJ/abstract/1742-6596/75/1/012003

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@inproceedings{c1677945a5c84aceadff8c6f03606e85,

title = "Analysis of counter-rotating wind turbines",

abstract = "This paper presents a study on the performance of a wind turbine with two counter-rotating (CRWT) rotors. The characteristics of the two counter-rotating rotors are on a 3-bladed Nordtank 500 kW rotor. The analysis has been carried out by using an Actuator Line technique implemented in the Navier-Stokes code EllipSys3D. The analysis shows that the Annual Energy Production can be increased to about 43.5 \%, as compared to a wind turbine with a single rotor. In order to determine the optimal settings of the CRWT turbine, parameters such as distance between two rotors and rotational speed have been studied.",

keywords = "Counter Rotating Wind Turbine, Actuator Line Model",

author = "Shen, \{Wen Zhong\} and Zakkam, \{Vinod Arun Kumar\} and S{\o}rensen, \{Jens N{\o}rk{\ae}r\} and Kari Appa",

year = "2007",

language = "English",

volume = "75",

pages = "9 pages",

journal = "Journal of Physics: Conference Series (Online)",

issn = "1742-6596",

publisher = "IOP Publishing",

note = "2nd International Conference on {"}The Science of Making Torque From Wind{"} ; Conference date: 28-08-2007 Through 31-08-2007",

url = "http://www.twind2007.mek.dtu.dk/",

}

TY - GEN

T1 - Analysis of counter-rotating wind turbines

AU - Shen, Wen Zhong

AU - Zakkam, Vinod Arun Kumar

AU - Sørensen, Jens Nørkær

AU - Appa, Kari

N1 - Conference code: 2

PY - 2007

Y1 - 2007

N2 - This paper presents a study on the performance of a wind turbine with two counter-rotating (CRWT) rotors. The characteristics of the two counter-rotating rotors are on a 3-bladed Nordtank 500 kW rotor. The analysis has been carried out by using an Actuator Line technique implemented in the Navier-Stokes code EllipSys3D. The analysis shows that the Annual Energy Production can be increased to about 43.5 %, as compared to a wind turbine with a single rotor. In order to determine the optimal settings of the CRWT turbine, parameters such as distance between two rotors and rotational speed have been studied.

AB - This paper presents a study on the performance of a wind turbine with two counter-rotating (CRWT) rotors. The characteristics of the two counter-rotating rotors are on a 3-bladed Nordtank 500 kW rotor. The analysis has been carried out by using an Actuator Line technique implemented in the Navier-Stokes code EllipSys3D. The analysis shows that the Annual Energy Production can be increased to about 43.5 %, as compared to a wind turbine with a single rotor. In order to determine the optimal settings of the CRWT turbine, parameters such as distance between two rotors and rotational speed have been studied.

KW - Counter Rotating Wind Turbine

KW - Actuator Line Model

M3 - Conference article

SN - 1742-6596

VL - 75

SP - 9 pages

JO - Journal of Physics: Conference Series (Online)

JF - Journal of Physics: Conference Series (Online)

T2 - 2nd International Conference on "The Science of Making Torque From Wind"

Y2 - 28 August 2007 through 31 August 2007

ER -

Analysis of counter-rotating wind turbines

Abstract

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Keywords

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