BEIJING,Nov.21(Xinhua)--AgroupofChinesescientistsfoundanewtypeofceramicmaterialstorealizepassivecoolingofbuildingsandsaveenergyconsumedbyairconditioners,accordingtotherecentissueofthejournalScience.Theelectricityusedbycoolingsystemsaccountsforabout10percentofglobalelectricityconsumption.Therefore,developingnewcoolingtechnologiesforsavingenergyandpromotingcarbonneutralityiscrucial.Radiativeskycoolingisapassivecoolingtechnologythatemitsheattoouterspacethroughtheatmosphericwindowfrom8to13micrometers.Iftheradiatedheatisgreaterthanthesolarenergyabsorbed,thendaytimeradiativecoolingisachievedwithoutanyenergyinput.Theresearchteam,ledbyProf.ZhaoDongliangfromtheSchoolofEnergyandEnvironmentatChina'sSoutheastUniversity,analyzedtheopticalcharacteristicsofdifferentmaterialsinthesolarandinfraredbandsbasedontheircrystalstructure.Theyputforwardthatceramicsmainlycomposedofaluminaandsilicawithcertainstructuraldesignscouldachieveradiativeskycoolingofbuildingsbyahighsunlightreflectionrateandhighemissionsofinfraredradiation.Moreover,suchceramicsaredurable,thermostable,andwater-resistant.Thestudyalsointroducedexamplesofsuchceramicradiativecoolingmaterials.Afterusingsuchmaterialsonthebuildingroof,theenergyconsumptionofairconditionersinsidethebuildingcanbereducedby26.8percentcomparedwithbuildingsusingordinarywhitepaint.Thestudysaidfurtherresearchwillbecarriedouttorealizethemassiveproductionofsuchmaterialsatalowcost.Editor:DisclaimerTheviewsandopinionsexpressedinthisarticlearethoseoftheauthor's,GMW.cnmakesnorepresentationsastoaccuracy,suitability,orvalidityofanyinformationonthissiteandwillnotbeliableforanyerrors,omissions,ordelaysinthisinformation.