Solar Urban Planning and Design城市太阳能使用概略Word文档格式.docx
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Solar Urban Planning and Design城市太阳能使用概略Word文档格式.docx
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Abstract:
Inrecentdecades,urbanpopulationgrowth,theaccelerationofenergyconsumptionandenergyprice,theincreaseofpublicconcernsaboutenvironmentalpollutionandthedemolitionofnonrenewableenergies,haveadvertedtheattentionofdifferentgroupstotheuseofsustainable,availableandcleansolarenergyasasustainableenergy.
Specialistslikearchitectsandengineershaveconsideredsolarenergyindesigningsystems,buildingsandequipments.Stragglesuccessachievedinthecase,causetheprogressofreplacingsolarsystemsinbuildingsandequipmentsinsteadofsystemsconsumingunsustainableresourceslikefossilfueltobeaccelerated.Buttheyhavenotappliedcoherentlyyet.Inotherwords,beforetheenforcementofsolarprojectsincities,itisnecessarytonoteallthedimensionsrelatedtotheirexecutioninordertoreachtheiroptimumefficiency.Thegoalthatcouldbeattainedbylong-timeandmultidimensionalplanning.
Thispaperguidesthefocusofurbanandtownplanninganddesignontheapplicationofsolarenergy.Thaturbanplannersshouldconsiderthreeaspectsofenvironment,economyandsocietyinthreerelatedelementsofcitiesconsistingbuildingsandurbanspaces,urbaninfrastructuresandurbanlandusestoachievesustainablegoalsisdiscussedinthispaper.So,afterthereviewoffewexperiences,theissuesandguidelineswhoseconsiderationleadtothemoreefficientsolarurbanplanninganddesignareoutlined.
Keywords:
SolarUrbanPlanning-SolarPotential-SustainableCity-SolarMasterPlan-SmartInfrastructure
1.Introduction:
theincreaseofattentiontosolarenergy
Theincreaseofurbanpopulation,activitiesandtechnologiesusingfossilfuels,energyprice,energyconsumptionandtheincreaseofpublicconcernsaboutenvironmentalpollutionandthedestroyofnon-renewableenergyresources,arecausingdifferentexpertsincludingspecialistsrelatedtobuildingandconstructiontolookforalternativewaysofenergyprovision.Buildingprofessionalshavenotconsideredtheaimofgooddesignaestheticallymoreandtrytodesignthe
building’scharacteristicsandrequirementsindependonthedecreaseofusingfossilfuelsandavoidanceofwastingenergy.Hagman(2005)saysthatgreatimprovementsinenergyefficiencyofbuildingsortheutilizationofsolartechnologiesonbuildingshavebeenmadesince20yearsago.Hesaysthatvisionaryclientsaswellasasmallbutveryactiveandinnovativwcommunityofarchitects,designersandengineerstooktherisktouseandtodevelopfurthersolartechnologiesandstrategiesforurbanplansandbuildings(Hagman,2005).HealsoaddressestotheculturalmovementofBernhardRudofskyinthemiddleof1960’sinholdinganexhibition“ArchitecturewithoutArchitects”intheMuseumofModernArt,NewYork.Buildingexamplespresentedintheexhibitionareeffectiveintheattractionofarchitect’sattentiontothevarietyofdesignandstructuralsolutions,Integrationinthelocallandscape,exclusiveuseoflocallyavailable,naturalconstructionmaterials,uniformityoftheconstructionstructures,applicationoftraditionalandtime-testedconstructiontechniques.
InGermany,attheendofthe1960’sagroupofarchitects,designers,engineersandsociologist,calledLOGID,wereaimingatalifewithinagreenenvironment.Thelifeandworkinagreenhousegottestedandpromoted.Homedesigns,similarenergygainingandaheatstorage.Theidealisticgoalwasthedreamoftheself-supply(Hagemann,2005).Then,straggleeffortshavebeendoneandvariousconceptssuchas“Biologicaldesign”,“NaturalDesign”,“AlternateBuildingDesign”,“SustainableArchitecture”,“EcologicalArchitecture”,“SolarArchitecture”,“OrganicArchitecture”,“VernacularArchitecture”,“ClimateArchitecture”,“GreenArchitecture”and“NaturalArchitecture”havebeencreatedinordertocreateahealthyandenvironmentallyfriendlyenvironment.Todaythesesingleapproachesofthevariousdirectionsareadoptedundertheumbrellaofan“ecologicalandsolarbuildingdesign”whichaimsataholisticdesignapproach(Hagemann,2005).
“EcologicalandSolarBuildingDesign”canbedescribedasanyformofdesignthatminimizesenvironmentallydestructiveimpactsbyintegratingitselfwiththelivingprocesses(Hagemann,2005).SomeofthetargetsHagman(2005)presentedasthetargetsofecologicalandsolardesigninitspaperarelowestpossiblepollutantdeliveryattheenvironment,lowestpossiblepowerconsumptionfromfossilenergyresources,maximumuseofrenewableenergysourcesincludingtheuseofactiveandpassivesolarsystems,exclusiveuseofrenewable,recyclableandenvironmentallyharmlessconstructionmaterials,exclusionofallbuildingmaterialswithunhealthyoutgassing,inparticulariftheyareusedinsidethebuilding,lowestpossibleinterferenceoftheenvironmentincludingtheuseofland,improvementofthenaturalconditionsforadiverselocal-orientedanimalandplantworld,lowestpossibleconsumptionofdrinkingwater,reductionandavoidanceofthesettlementwastetobedeposited,optimallifehygienicconditionsandsociallybeneficiallivingconditions,costeffectivebuildingconstruction,creationofalong-termuse-value,i.e.thebuildingmustbeeasilyadjustable,alterableandrepairable.
Althoughtheeffort,thelimitedinformationandknowledgeofarchitectsaboutnewtechnologiesandvariousdesignsofsolartechnologiesanditsstrategies,thescarceoflimitationsofarchitecturalplan,lowknowledgeofurbanplannersonconsiderationofprerequisitesofbuildingdevelopmentandurbanauthorities’inadequateattentioninfinancialandeducationalprogramstosampleprojects,prohibitthevastdevelopmentofusingtheenergyandrelatedstrategiesincities.Therefore,thefrequentusageofsolartechnologiesarelimitedtosinglebuildingshavingnoaccesstootherenergysourcesorenergytransfertotheirplacementisnoteconomical.
2.Thenecessityofusingsolarenergyinurbanscale
Therearethreemajorreasonsthatinterpretthenecessityofusingsolarenergyinurbanscaleandtheconsiderationofitsprerequisitesinurbanplanningandurbandesignscales.Thefirstistheaccelerationofurbanpopulationgrowtharoundtheworldandtheglobalpredictionresultsshowingtheexhaustingofnone-renewableenergyresources.IndependontheestimationsdoneinBerlin,urbanbuildingsconsume40%ofurbanenergymostlyachievedbyfossilfuel,whileeachbuildingcanprovideitsnecessaryenergyfromcheap,sustainable,cleanandhealthysolarenergybydifferentmethodsofusingsolarenergyspeciallythroughphotovoltaicsystems.Thethirdreasonisthelonglifeofurbanstructuresincomparisonwithurbanplanninglifeandinfrastructures’life.Thedifferenceandthepossibilityofchangingurbaninfrastructureinordertousethemaximumpossiblesolarenergyandtheeasyinstallationandchangeofphotovoltaicequipmentsonthebuildingsandevenbuildingreconstructioninthisregard,arevaluableandurgentbecauseeachactioninurbanbuildingsandinfrastructureswhicharedonetodayhavethelongresultonthetotalurbanstructure.
Usingtheapproach,someofthecitiessuchasBerlinandNewYorkhavestartedsomechangesandreparationsoftheconstructionofresidentialbuildings.Andalsothroughtheapplicationofsomebylawsandcodes,theyappreciateorobeyedoccupantstoalternateunsustainableenergyresourcesintheirhouseswithsolartechnologies.
Inaddition,withoutanydoubt,urbanauthoritiesandlocalmanagementhaveakeyroleonempowermentandpersuasionofusingsolarenergyamongindividualpartsanddifferentgroupsofthesocietybyintroducingsomelocalpoliciesandanappropriatelegalframework.Asaresult,thedevelopmentandexpansionofsolartechnologiesinurbanbuildingscouldnotbeeasilyoccurredwithouttheconsiderationofnecessarymeasuresinurbanscale.Berlincouldbementionedasasuccessfulcityintheapplicationofsolartechnologies.Inthecity,in1996,EuropeanCharterforSolarEnergyinArchitectureandUrbanPlanning”wasset.Thechartermentionedsomeinstructions,standards,statutoryregulationsandlawstoguidethedesignofbuildingandurbanspacesinsuchawaythatnaturalresourceswillbeconservedandrenewableformsofenergy-especiallysolarenergy-willbeusedasextensivelyaspossible.
Hagemann(2005)saysthattoday,insomecountries,suchasSwitzerlandandGermany,approachesthatwereseenas“ecological”or“solar”inthepast,areconsideredasa“stateofthetechnology”andareappliedforpredominantlyeconomicandtechnicalreason.Inthisrespect,somestandardsaresetfortheseriousapplicationofsolartechnologiesinGermany.Also,asGuedietal(2006)saymanycitieslikeNewYork,SanFrancisco,TelAvivandTorontohavedefinedregulationstokeepsolarrightsfromapublicpointofviewortoensurethefulluseofprivateproperties.InsomecountriessuchasIsrael,althoughtherearenogeneralregulationstoensuresolarrightsforeitherpublicorprivateproperties,althoughenvironmentassessmentisrequiredwhentallbuildingsaredesigned(Capeluto&
etc.,2006).Moreover,PVCityGuidemakesindicationsandrecommendationshowstrategicurbanpoliciescanbedevelopedinordertoincreasetheuseofphotovoltaics(Nowak&
Gutschner,2001).Inaddition,asolarurbanmasterplanforBerlinwascreatedbyEcofysin2004attherequestoftheCityCouncilinordertodeterminethesolarpotentialsofthedifferentcityquarters(Lindner,2007).
3.Methodsofusingsolarenergyincities
Inrecentyears,solarenergyisappliedbydifferentsystemsandfor
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