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DNVGL-RP-0171

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Erosion test | DNVGL-RP-0171. Wind turbine blades are continuously exposed to UV rays from the sun, as well as to a constant barrage of rain drops, ... Searchwebsite Contact English Dansk Tests Rainerosiontesting Lightningtest Weatheringtesting Tensiletesting Customisedtests Third-partytests Testingfacilities Testcenter,Bramming(DEN) LightningTestCenter,Herning(DEN) Accreditation Contact sitemap PolytechTestCenters: Industrivej37 DK-6740Bramming HIPark445 DK-7400Herning VAT-No:DK40013792 Denmark Phone:+4575101026 Fax:+4575101126 [email protected] Home Tests Rainerosiontesting DNVGL-RP-0171 Erosiontest-Maximizeservicelifeofyourwindturbineblades Polytechhastwoaccreditedtestcenters.AtourcenterinBramming,Denmark,weperformerosiontestsonwindturbinebladesinaccordancewiththerecommendedpractice:DNVGL-RP-0171. Rainerosiontesting DNVGL-RP-0171 ASTMG73-10 Rainerosiondamages Erosiontest|DNVGL-RP-0171 WindturbinebladesarecontinuouslyexposedtoUVraysfromthesun,aswellastoaconstantbarrageofraindrops,grainsofsand,dustparticles,hail,insectsandmore.Theprotectivepropertiesofthesurfacearethereforecrucialtotheservicelifeoftheblade–especiallyontheleadingedge,whichbearsthebruntoftheimpacts.Itisessentialtochoosethebestpossiblesurfacesoastomaximiseservicelife,fulfilwarrantyobligationsandcontrolcosts. Erosiontestsofthehighestquality PolytechhastwoaccreditedtestcentersinDenmark.AtourcenterinBramming,weperformerosiontestsonwindturbinebladesinaccordancewiththelatestrecommendedpractice:DNVGL-RP-0171.Thetestisdesignedtoestablishthedurabilityoftheprotectivelayerontheleadingedge.Itispossibletocombinetheerosiontestwithanacceleratedweatheringtest,suchasISO20340(Simulationofimpactsinoffshoreenvironment). ProcedureforerosiontestDNVGL-RP-0171 Thecustomerreceivestestprofilesinfibreglass-reinforcedpolymer(FRP) Thecustomerappliestheleadingedgeprotectionproduct ThecustomersendsthecoatedtestprofilestoPolytech Thetestprofilesareinstalledinthetestmachine Theprofilesareacceleratedtothespeeddesignatedbythecustomer(typicallyabladetipspeedof160m/s). The“rain”isstartedandthetestbegins Onrequest,thetestcanbeinterruptedatpre-definedintervalstocollectphotodocumentationofthedevelopmentoftheerosion DataandphotosfromthetestarecollatedinaTestReport. Variabletestparameters Raindropsize:2–2.5mmor3–3.5mm Precipitationvolume:29–56mm/hour Watertemperature:4°C–30°C Speed:63–173m/s Intervalsbetweenphotodocumentation Durationoftestandsequences Photooptions Automatichigh-resolution(20MP)photosatdefinedintervals Manualhigh-resolutionphotos Manualhigh-resolutionphotoswithhighcontrast   WecalibrateourtestequipmentinaccordancewithDNVGL-RP-0171whenevercriticalparametersarechanged,aswellasatfixed,predefinedintervals. Recommendedevaluationoftestresults Thepicturesfromanerosiontestcanbeconvertedintoagraphbymeasuringthedevelopmentoftheerosion(mm)ineachintervalandplottingthemin.Oncomparisonofseveraltests,theleadingedgeprotectionwiththeshallowestslopewillbethemostresistanttoerosion.Twovalidparametersforthedevelopmentoferosionare: incubationtime(timebeforeerosionbecomesapparentontheleadingedge) breakthroughtime(timebeforeerosionhascompletelybrokenthroughthematerialtested) Independentthird-partytests ThePolytechTestCenterisaccreditedbyDANAKinaccordancewiththeISO17025standardandoperatesasanindependenttestinstitute.Contactusforadditionalinformation. RainErosionTest Seeourstate-of-the-artrainerosionsysteminaction.     DownloadDNVGL-RP-0171RainErosionTest DOWNLOADHowtoOrderaRainErosionTest     JanWrang HeadofTest&Validation +4575101026 AnneK.Osberg SalesSupporter-RainErosion,WeatheringandTensileTests +4541999053     Webbythefriendlydotpeople

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