文档名：风力发电机叶片防除冰涂层二温升数值计算及防除冰性能
摘要：针对电热超疏水涂层覆冰过程中表现出的三类不同冰层形貌,该文建立了电加热融冰数值计算模型,并对仿真计算结果进行了相应的试验验证,验证结果与仿真结果基本一致,该模型能有效模拟融冰过程和温度分布.临界融冰功率的计算结果表明,电热超疏水涂层融冰所需功率大于非超疏水电热涂层,尤其在乳突状冰层出现后,融冰功率将大幅增加.电热超疏水涂层防冰试验结果表明,在雨凇覆冰环境中,超疏水性能单独作用时,叶片在覆冰前期能延缓覆冰;电热性能与超疏水性能共同作用时,叶片无覆冰形成.电热超疏水涂层用于风力发电机防覆冰具有较好的效果,但用于覆冰后的融冰时将需要更多的能量.
Abstract：Accordingtotheobservationandstatisticsoftheicemorphologyonthesurfaceoftheelectrothermalsuperhydrophobiccoating,thecoatingshowsthreedifferenttypesoficemorphologyintheprocessoficecoating.Thefirsticetype,theicecoatingisscatteredonthesurfaceofthecoatinginblocks,mostlyintheearlystageoficecoating;Thesecondicetype,thecoatingisalmostcoveredbyice,formingapapillaryicelayer,mostlyinthemiddleoftheicecoating;Thethirdicetype,whichisfullycoveredwithcorrugatedice,issimilartothenonsuperhydrophobiccoatingicetype,andmostlyoccursinthelatestageoficecoating.Basedonthesethreetypesoficing,anumericalcalculationmodelofelectricheatingicemeltingisestablished,includingthecalculationmodelofcoatingtemperatureriseandcriticaldeicingpower.Theresultsofthesimulationmodelareverifiedbyexperiments.Theexperimentalresultsarebasicallyconsistentwiththesimulationresults.Themodelcaneffectivelysimulatetheicemeltingprocessandtemperaturedistributionoftheelectrothermalsuperhydrophobiccoating.Theantiicinganddeicingtestsoffanbladescoatedwithelectrothermalsuperhydrophobiccoatingsarecarriedoutinthispaper.Theresultsofrelevantsimulationcalculationsandicingtestsareasfollows:Thecalculationresultsofthecriticaldeicingpowershowthat:Theincreaseoftheicethicknessofthecommonelectrothermalcoatinghindersthelossofthecoatingheat,andthecriticaldeicingpowerdecreases;Forthefirsticetypeofelectrothermalsuperhydrophobiccoating,thedeicingpowerrequiredforpowersupplyheatingissmall;Foricetype2,duetotheformationofitscolumnaricetype,theconvectiveheattransferareaincreases,theheatlossincreases,andthecriticalicemeltingpowerislarge;Theicetype3issimilartotheicecoatedtypeofordinarycoating,theicethicknesshinderstheheatlossofthecoating,andtherequireddeicingpowerisroughlyequivalenttothatofordinaryelectrothermalcoating.Thecalculationresultsindicatethatthepowerrequiredforicemeltingofelectrothermalsuperhydrophobiccoatingsisgreaterthanthatofnonsuperhydrophobicelectrothermalcoatings,especiallyaftertheemergenceofpapillaryice,theicemeltingpowerwillincreasesignificantly.Theresultsoftheanti-icinganddeicingtestoftheelectrothermalsuperhydrophobiccoatingshowthat:Intheglazeicingenvironment,whenthesuperhydrophobicperformanceactsalone,thebladecandelaytheicecoatingintheearlystageoftheicecoating.Oncethepapillaryicecoatingappearsonthewindwardsideoftheelectrothermalsuperhydrophobicblade,theicecoatingweightwillincreasesignificantly,andwiththeincreaseoftheicecoatingtime,theicecoatingseveritywillbegreaterthanthatoftheordinarybladesurface;Whenelectrothermalperformanceandsuperhydrophobicperformancearecombined,noicecoatingisformedonthebladecoatingsurface.Thesynergisticeffectofelectrothermalsuperhydrophobiccoatinghasagoodeffectonanti-icingofwindturbine,butitwillrequiremoreenergywhenusedforicemeltingaftericing.
作者：胡琴 朱茂林 舒立春 蒋兴良 徐兴 Author：HuQin ZhuMaolin ShuLichun JiangXingliang XuXing
作者单位：重庆大学雪峰山能源装备安全国家野外科学观测研究站重庆400044重庆大学雪峰山能源装备安全国家野外科学观测研究站重庆400044;国网浙江省电力有限公司杭州市余杭区供电公司杭州311199重庆大学雪峰山能源装备安全国家野外科学观测研究站重庆400044;国网湖南省电力有限公司长沙供电分公司长沙410035
刊名：电工技术学报
Journal：TransactionsofChinaElectrotechnicalSociety
年，卷(期)：2024, 39(1)
分类号：TM242
关键词：风力发电机 超疏水电热涂层 防除冰 数值模型 人工试验
Keywords：Windturbine super-hydrophobicelectricheatingcoating anti-icing numericalmodel manualtest
机标分类号：TM315TK83U443.33
在线出版日期：2024年1月18日
基金项目：国家自然科学基金，重庆市科学技术局资助项目风力发电机叶片防除冰涂层(二):温升数值计算及防除冰性能[
期刊论文] 电工技术学报--2024, 39(1)胡琴 朱茂林 舒立春 蒋兴良 徐兴针对电热超疏水涂层覆冰过程中表现出的三类不同冰层形貌,该文建立了电加热融冰数值计算模型,并对仿真计算结果进行了相应的试验验证,验证结果与仿真结果基本一致,该模型能有效模拟融冰过程和温度分布.临界融冰功率的计...参考文献和引证文献
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风力发电机叶片防除冰涂层(二):温升数值计算及防除冰性能 Anti-Deicing Coatings for Wind Turbine Blades Part 2:Numerical Calculation of Temperature Rise and Anti-Deicing Performance
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