Wind Turbine Performance Under Icing Conditions

Wind Turbine Performance Under Icing Conditions

Research output: Contribution to conference › Paper

Abstract

The effects of rime ice on horizontal axis wind turbine performance were estimated. For typical supercooled fog conditions found in cold northern regions, four rine ice accretions on the S809 wind turbine airfoil were predicted using the LASA LEWICE code. The resulting airfoil/ice profile combinations were wind-tunnel tested to obtain the lift, drag and pitching moment characteristics over theReynolds number range 1-2 x 10 to the 6th. These data were used in the PROPID wind-turbine performance prediction code to predict the effects of rime ice on a 450-kW rated-power, 28.7-m diameter turbine operated under both stall-regulated and variable-speed models. Performance losses on the order of 20% were observed for the variable-speed rotor. For the stall-regulated rotor, however, arelatively small rime ice profile yielded significantly larger performance losses. For a larger 0.08c long rime ice protrusion, however, the rated peak power was exceeded by 16% because at high angles the rime ice shape acted like a leading edge flap, thereby increasing the airfoil

Original language	American English
Pages	371-372E
Number of pages	2
State	Published - 1997
Event	1997 ASME Wind Energy Symposium Technical 35th AIAA Aerospace Sciences Meeting and Exhibit - Reno, Nevada Duration: 6 Jan 1997 → 9 Jan 1997

Conference

Conference	1997 ASME Wind Energy Symposium Technical 35th AIAA Aerospace Sciences Meeting and Exhibit
City	Reno, Nevada
Period	6/01/97 → 9/01/97

Bibliographical note

Work performed by University of Illinois at Urbana-Champaign, Urbana, Illinois

NREL Publication Number

NREL/CP-23295

Cite this

@conference{c814ceac7e1c4359a9109c5af05accde,

title = "Wind Turbine Performance Under Icing Conditions",

abstract = "The effects of rime ice on horizontal axis wind turbine performance were estimated. For typical supercooled fog conditions found in cold northern regions, four rine ice accretions on the S809 wind turbine airfoil were predicted using the LASA LEWICE code. The resulting airfoil/ice profile combinations were wind-tunnel tested to obtain the lift, drag and pitching moment characteristics over theReynolds number range 1-2 x 10 to the 6th. These data were used in the PROPID wind-turbine performance prediction code to predict the effects of rime ice on a 450-kW rated-power, 28.7-m diameter turbine operated under both stall-regulated and variable-speed models. Performance losses on the order of 20% were observed for the variable-speed rotor. For the stall-regulated rotor, however, arelatively small rime ice profile yielded significantly larger performance losses. For a larger 0.08c long rime ice protrusion, however, the rated peak power was exceeded by 16% because at high angles the rime ice shape acted like a leading edge flap, thereby increasing the airfoil",

author = "NREL",

note = "Work performed by University of Illinois at Urbana-Champaign, Urbana, Illinois; 1997 ASME Wind Energy Symposium Technical 35th AIAA Aerospace Sciences Meeting and Exhibit ; Conference date: 06-01-1997 Through 09-01-1997",

year = "1997",

language = "American English",

pages = "371--372E",

}

TY - CONF

T1 - Wind Turbine Performance Under Icing Conditions

AU - NREL, null

N1 - Work performed by University of Illinois at Urbana-Champaign, Urbana, Illinois

PY - 1997

Y1 - 1997

N2 - The effects of rime ice on horizontal axis wind turbine performance were estimated. For typical supercooled fog conditions found in cold northern regions, four rine ice accretions on the S809 wind turbine airfoil were predicted using the LASA LEWICE code. The resulting airfoil/ice profile combinations were wind-tunnel tested to obtain the lift, drag and pitching moment characteristics over theReynolds number range 1-2 x 10 to the 6th. These data were used in the PROPID wind-turbine performance prediction code to predict the effects of rime ice on a 450-kW rated-power, 28.7-m diameter turbine operated under both stall-regulated and variable-speed models. Performance losses on the order of 20% were observed for the variable-speed rotor. For the stall-regulated rotor, however, arelatively small rime ice profile yielded significantly larger performance losses. For a larger 0.08c long rime ice protrusion, however, the rated peak power was exceeded by 16% because at high angles the rime ice shape acted like a leading edge flap, thereby increasing the airfoil

AB - The effects of rime ice on horizontal axis wind turbine performance were estimated. For typical supercooled fog conditions found in cold northern regions, four rine ice accretions on the S809 wind turbine airfoil were predicted using the LASA LEWICE code. The resulting airfoil/ice profile combinations were wind-tunnel tested to obtain the lift, drag and pitching moment characteristics over theReynolds number range 1-2 x 10 to the 6th. These data were used in the PROPID wind-turbine performance prediction code to predict the effects of rime ice on a 450-kW rated-power, 28.7-m diameter turbine operated under both stall-regulated and variable-speed models. Performance losses on the order of 20% were observed for the variable-speed rotor. For the stall-regulated rotor, however, arelatively small rime ice profile yielded significantly larger performance losses. For a larger 0.08c long rime ice protrusion, however, the rated peak power was exceeded by 16% because at high angles the rime ice shape acted like a leading edge flap, thereby increasing the airfoil

M3 - Paper

SP - 371-372E

T2 - 1997 ASME Wind Energy Symposium Technical 35th AIAA Aerospace Sciences Meeting and Exhibit

Y2 - 6 January 1997 through 9 January 1997

ER -

Wind Turbine Performance Under Icing Conditions

Abstract

Conference

Bibliographical note

NREL Publication Number

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