《Microclimatic Experimentation Applied to Insulating Horizontal Coverage in Mexicali, Mexico》.pdf

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《Microclimatic Experimentation Applied to Insulating Horizontal Coverage in Mexicali, Mexico》.pdf

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JournalofEnvironmentalScienceandEngineeringA2(2013)561—568 FormerlypartofJournalofEnvironmentalScienceandEngineering，ISSN 1934-8932 … … … MicroclimaticExperimentationAppliedtoInsulating HorizontalCoverageinMexicali，Mexico ZaliaHaro．Rinc6n，N6storSantillfin．Soto，RafaelGarcia．Cueto，SaraOjeda．BenitezandAlejandro Lambert—Arista 』InstituteofEngineering,AutonomousUniversityofBajaCalfiornia，Mexicali21280，Mexico 2FaculytofEngineering,AutonomousUniversiytofBajaCalfiornia，Mexicali21280，Mexico Received：July07，2013／Accepted：August06，2013／Published：September20，2013 Abstract：Thethermalresponseofhedgesalterstheurbanclimate，resultinginenergyandcomfort affectationsthatimpactcity dwellers，sotheaim ofthisstudyisto analyzetheenergyfluxesofurbanhorizontalcoverage，especiallyexpandedpolysytrene waterproofedwithelastomericpaintintheciyt ofMexicali．BajaCalifornia．1ocatednorthwestofMexico．Theexperimentwas realizedonsummerof20l1and20l2bvusingfourcomponentsradiometricsensor，eddycovarianceequipment，whichwaspossible toanalyzethebehaviorandintensitiesofheatfluxesusingthemodelQ =QE+QG+QH+QF+QD．Theresultsshowthatinboth campaignsthesensibleheatfluxexceedsthenetradiation．in20l1thenetradiationwas3l-4lW ／m nadsensibleheatfluxof74．9 W ／m ．in20l2resulted43．46W ／m and87．32W ／m ．respectively．ThisadditionaIheatfluxisattributedtothethermalinfluenceof theairconditioningunits，whichchangestheenergybalancemodeltoQ =QH+QF+QD．Withtheresultsarisetheneedfor experimentationonalargerscaleinwhichitispossibletomodeltheflow inhousingdevelopment．Theknowledgeoftheenergy balancemodelwil1helptoproposematerialsthatminimizethethermalimpacttotheciytofMexicali． Keywords：Energyfluxes，coatinginsulatingcoverage，thermalimpact，urbanclimatology 1．IntrOductiOn impacts that modify vegetation， air quality and