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contributor authorW. J. Jasinski
contributor authorS. C. Noe
contributor authorM. S. Selig
contributor authorM. B. Bragg
date accessioned2017-05-08T23:57:47Z
date available2017-05-08T23:57:47Z
date copyrightFebruary, 1998
date issued1998
identifier issn0199-6231
identifier otherJSEEDO-28276#60_1.pdf
identifier urihttp://yetl.yabesh.ir/yetl/handle/yetl/121107
description abstractThe effects of rime ice on horizontal axis wind turbine performance were estimated. For typical supercooled fog conditions found in cold northern regions, four rime ice accretions on the S809 wind turbine airfoil were predicted using the NASA LEWICE code. The resulting airfoil/ice profile combinations were wind tunnel tested to obtain the lift, drag, and pitching moment characteristics over the Reynolds number range 1−2 × 106 . 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/variable-pitch modes. Performance losses on the order of 20 percent were observed for the variable-speed/ variable-pitch rotor. For the stall-regulated rotor, however, a relatively 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 percent because at high angles the rime ice shape acted like a leading edge flap, thereby increasing the airfoil Cl,max and delaying stall.
publisherThe American Society of Mechanical Engineers (ASME)
titleWind Turbine Performance Under Icing Conditions
typeJournal Paper
journal volume120
journal issue1
journal titleJournal of Solar Energy Engineering
identifier doi10.1115/1.2888048
journal fristpage60
journal lastpage65
identifier eissn1528-8986
keywordsWind turbines
keywordsIce
keywordsAirfoils
keywordsRotors
keywordsTurbines
keywordsShapes
keywordsWind tunnels
keywordsHorizontal axis wind turbines
keywordsDrag (Fluid dynamics) AND Reynolds number
treeJournal of Solar Energy Engineering:;1998:;volume( 120 ):;issue: 001
contenttypeFulltext


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