1、BRITISH STANDARD BS EN ISO 15927-1:2003 Hygrothermal performance of buildings Calculation and presentation of climatic data Part 1: Monthly means of single meteorological elements The European Standard EN ISO 15927-1:2003 has the status of a British Standard ICS 91.120.10; 91.120.30 BS EN ISO 15927-
2、1:2003 This British Standard was published under the authority of the Standards Policy and Strategy Committee on 2 December 2003 BSI 2 December 2003 ISBN 0 580 43007 3 National foreword This British Standard is the official English language version of EN ISO 15927-1:2003. It is identical with ISO 15
3、927-1:2003. The UK participation in its preparation was entrusted by Technical Committee B/540, Energy performance of materials, components and buildings, to Subcommittee B/540/1, European Standards for thermal insulations, which has the responsibility to: A list of organizations represented on this
4、 subcommittee can be obtained on request to its secretary. Cross-references The British Standards which implement international or European publications referred to in this document may be found in the BSI Catalogue under the section entitled “International Standards Correspondence Index”, or by usi
5、ng the “Search” facility of the BSI Electronic Catalogue or of British Standards Online. This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application. Compliance with a British Standard does not of itself confer immunity f
6、rom legal obligations. aid enquirers to understand the text; present to the responsible international/European committee any enquiries on the interpretation, or proposals for change, and keep the UK interests informed; monitor related international and European developments and promulgate them in th
7、e UK. Summary of pages This document comprises a front cover, an inside front cover, the EN ISO title page, pages 2 to 29 and a back cover. The BSI copyright notice displayed in this document indicates when the document was last issued. Amendments issued since publication Amd. No. Date CommentsEUROP
8、EANSTANDARD NORMEEUROPENNE EUROPISCHENORM ENISO159271 November2003 ICS91.120.10;91.120.30 Englishversion HygrothermalperformanceofbuildingsCalculationand presentationofclimaticdataPart1:Monthlymeansofsingle meteorologicalelements(ISO159271:2003) PerformancehygrothermiquedesbtimentsCalculet prsentati
9、ondesdonnesclimatiquesPartie1:Moyennes mensuellesetannuellesdeslmentsmtorologiques simples(ISO159271:2002) WrmeundfeuchteschutztechnischesVerhaltenvon GebudenBerechnungundDarstellungvonKlimadaten Teil1:MonatsundJahresmittelwerteeinzelner meteorologischerElemente(ISO159271:2002) ThisEuropeanStandardw
10、asapprovedbyCENon10April2003. CENmembersareboundtocomplywiththeCEN/CENELECInternalRegulationswhichstipulatetheconditionsforgivingthisEurope an Standardthestatusofanationalstandardwithoutanyalteration.Uptodatelistsandbibliographicalreferencesconcernings uchnational standardsmaybeobtainedonapplication
11、totheManagementCentreortoanyCENmember. ThisEuropeanStandardexistsinthreeofficialversions(English,French,German).Aversioninanyotherlanguagemadebytra nslation undertheresponsibilityofaCENmemberintoitsownlanguageandnotifiedtotheManagementCentrehasthesamestatusasthe official versions. CENmembersarethena
12、tionalstandardsbodiesofAustria,Belgium,CzechRepublic,Denmark,Finland,France,Germany,Greece, Hungary,Iceland,Ireland,Italy,Luxembourg,Malta,Netherlands,Norway,Portugal,Slovakia,Spain,Sweden,SwitzerlandandUn ited Kingdom. EUROPEANCOMMITTEEFORSTANDARDIZATION COMITEUROPENDENORMALISATION EUROPISCHESKOMIT
13、EEFRNORMUNG ManagementCentre:ruedeStassart,36B1050Brussels 2003CEN Allrightsofexploitationinanyformandbyanymeansreserved worldwideforCENnationalMembers. Ref.No.ENISO159271:2003EENISO159271:2003(E) 2 Contents Page Foreword3 1 Scope 4 2 Normativereferences 4 3 Terms,definitions,symbolsandunits . .4 3.
14、1 Termsanddefinitions. .4 3.2 Symbolsandunits .6 4 Periodsoverwhichparametersarecalculated 7 5 Airtemperature . .8 5.1 Sourcesofdata . .8 5.2 Calculationofthemonthlymean . 8 5.3 Calculationofthestandarddeviationofdailymeansaboutthemonthlymean.9 5.4 Calculationoftheannualmeanandstandarddeviation. 10
15、5.5 Expressionofresults . .10 6 Atmospherichumidity .11 6.1 Sourcesofdata . .11 6.2 Relationshipsbetweentemperatureandhumidityparameters11 6.3 Calculationofmonthlymean. .13 6.4 Expressionofresults . .14 7 Windspeedanddirection .16 7.1 Methodsofmeasurement .16 7.2 Environmentalinfluenceonmeanwindspee
16、d .16 7.3 Statisticalelements .20 7.4 Expressionofresults . .21 8 Precipitation .22 8.1 Sourcesofdata . .22 8.2 Calculationofmonthlytotal 22 8.3 Expressionofresults . .22 9 Solarradiation. .22 9.1 Sourcesofdata . .22 9.2 Calculationofmonthlytotalsolarirradiation .23 9.3 Expressionofresults . .24 9.4
17、 Estimatingirradiancesthatarenotmeasured 24 10 Longwaveradiation . 24 10.1 General24 10.2 Sourcesofdata 24 10.3 Calculationofmonthlytotallongwaveirradiationfromtheatmosphere(sky).24 10.4 Expressionofresults 25 AnnexA(informative)Methodsforsplittingglobalsolarirradianceintothedirectanddiffuseparts.26
18、 AnnexB(informative)Methodsforestimatingthelongwaveatmosphericirradiances(longwavesky irradiances)andtheskytemperature .27 Bibliography 29ENISO159271:200 3 (E) 3 Foreword Thisdocument(ENISO159271:2003)hasbeenpreparedbyTechnicalCommitteeCEN/TC89,“Thermal performanceofbuildingsandbuildingcomponents ”,
19、thesecretariatofwhichisheldbySIS,incollaborationwith TechnicalCommitteeISO/TC163,“Thermalperformanceandenergyuseinthebuiltenvironment” , SubcommitteeSC 2 “Calculationmethods“ . ThisEurop eanStandard shall be giventhestatusofa nationalst andard, eitherbypublicationofanidenticaltext orbyendorsement, a
20、t the latestbyMay20 04,and conflictingnational standardsshallbewithdrawnatthe latest by May 2004. Thisstandar d isone of aseries of standards oncalc ulation methods forth e design and evaluation of the thermal andmoisture performanceof buildings.EN ISO 15927, HygrothermalperformanceofbuildingsCalcul
21、ationand presentationofclimaticdata, consistsofsixparts: Part1: Monthlymeansofsinglemeteorologicalelements ; Part2: Datafordesigncoolingloadsandriskofoverheating ; Part3: Calculationofadrivingrainindexforverticalsurfacesfromhourlywindandraindata ; Part4: Dataforassessingtheannualenergyforheatingandc
22、ooling ; Part5: Winterexternaldesignairtemperaturesandrelatedwinddata ; Part6: Accumulatedtemperaturedifferencesforassessingenergyuseinspaceheating . Annexes AandBar e informative. Thisdocu mentinclu des a Bibliography. AccordingtotheCEN/CENELECInternalRegulations,thenationalstandardsorganizationsof
23、thefollowing countriesarebound toimplement thisEuropeanStandard:Austria,Belgium,CzechRepublic,Denmark,Finland, France,Germany,Greece,Hungary,Iceland,Ireland,Italy,Luxembourg,Malta,Netherlands,Norway,Portugal, Slovakia,S pain, Sweden,Swi tzerlandandtheUnitedKin gdom.ENISO159271:2003(E) 4 1Scope ThisE
24、uropeanStandardspecifiesproceduresforcalculatingandpresentingthemonthlymeansofthose parametersofclimaticdataneededtoassesssomeaspectsofthethermalandmoistureperformanceof buildings.Numericalvaluesshouldbeobtainedfromthemeteorologicalserviceintherelevantcountry. ThisEuropeanStandardcoversthefollowings
25、ingleclimatevariables: airtemperature; atmospheric humidity; wind speed; precipitation; solar radiation; longwave radiation. Meteorologicalinstrumentationandmethodsofobservationarenotcovered;thesearespecifiedbytheWorld MeteorologicalOrganisation(WMO). 2 Normativereferences ThisEuropeanStandardincorp
26、oratesbydatedorundatedreference,provisionsfromotherpublications.These normativereferencesarecitedattheappropriateplacesinthetext,andthepublicationsarelistedhereafter.For datedreferences,subsequentamendmentstoorrevisionsofanyofthesepublicationsapplytothisEuropean Standardonlywhenincorporatedinitbyame
27、ndmentorrevision.Forundatedreferencesthelatesteditionofthe publicationreferredtoapplies(includingamendments). WorldMeteorologicalOrganisation: Guidetometeorologicalinstrumentsandmethodsofobservation. 6thEdition WMONo.81996. 3 Terms,definitions,symbolsandunits 3.1 Termsanddefinitions Forthepurposesof
28、thisEuropeanStandard,thefollowingtermsanddefinitionsapply. 3.1.1 mixingratio ratioofthemassofwatervapourtothemassofdryairwithwhichthewatervapourisassociated 3.1.2 watervapourpressure partofthetotalatmosphericpressureexertedbywatervapour 3.1.3 saturatedvapourpressureoverwater vapourpressureofmoistair
29、inequilibriumwithaplaneliquidwatersurface 3.1.4 relativehumidity ratioofthevapourpressureofmoistairtothevapourpressureitwouldhaveifitweresaturated 3.1.5 referencewindspeed windspeedmeasuredataheightof10mabovegroundlevelinopencountrywithoutnearbyobstacles 3.1.6 gustspeed greatestinstantaneouswindspee
30、dobservedduringtheperiodoverwhichthemeaniscalculatedENISO159271:2003(E) 5 3.1.7 solarirradiance radiationpowerperareageneratedbythereceptionofsolarradiationonaplaneofanytiltandorientation Thefollowingspecialquantitiescanbedistinguishedaccordingtotheconditionsofreception: 3.1.7.1 globalsolarirradianc
31、e irradiancegeneratedbyreceptionofsolarradiationfromthefullhemisphere NOTE Accordingtothefollowingdefinitionsitisequaltothereceptionofdirectsolaranddiffusesolarradiationona horizontalplane.Inthecaseoftiltedplanesaportionofthegroundreflectedglobalsolarradiationisalsoreceived. 3.1.7.2 directsolarirrad
32、iance irradiancegeneratedbythereceptionofsolarradiationfromaconicalanglewhichsurroundsconcentricallythe apparentsolardisk NOTE1 Alsoreferredtoas“beamsolarradiation“. NOTE2 Thehorizontalcomponentofthedirectsolarirradianceisapartoftheglobalsolarirradiance. NOTE3 Anycomponentofthedirectsolarirradiancei
33、sgeneratednearlyexclusivelyfromunscatteredsolarradiation. NOTE4 Thediameteroftheapparentsolardiskcorrespondstoabout0,5degrees;fortechnicalreasonstheavailable radiometersreceivethedirectsolarirradiancefromsolidanglesaroundthesolardiskwhichcorrespondmostlytofieldofvie w anglesbetween3 and6 . 3.1.7.3 d
34、iffusesolarirradiance irradiancegeneratedbythereceptionofscatteredsolarradiationfromthefullskyhemisphere,withtheexception ofthatsolidanglewhichisusedtomeasurethedirectsolarirradiance NOTE1 Practicalmeasurementrequiresasunfollowingdisk,whichpermanentlyshadesthe receiver of the radiometer withafieldof
35、shadeanglewhichequalsthefieldofviewangleusedformeasuringdirectsolarirradiance.Thisallowsthe globalirradiancetobecalculatedasthesumofdiffusesolarandthehorizontalcomponentofthedirectsolarirradiance. NOTE2 Theuseofaringtoshadethesunalongitsdailypathinsteadofadiskrequiresanequationtocorrectforthe corres
36、pondinglossesofdiffusesolarirradiance. 3.1.7.4 reflectedsolarirradiance irradiancegeneratedbyreceptionoftherisingreflectedglobalradiationonadownwardlookingplane NOTE1 Theratioofreflectedsolarandglobalsolarirradianceiscalledalbedo. NOTE2 Partofthereflectedglobalsolarradiationisreceivedonanytiltedplan
37、e. 3.1.8 solarirradiation radiantenergyperareareceivedfromthesunonaplaneofdefinedinclinationandorientationduringagiven periodoftime NOTE Thesamecomponentsasindicatedin3.1.7forirradiancecanbedistinguished. 3.1.9 longwave(terrestrial)radiation radiationwithwavelengthgreaterthan3 mfromsurfacesatthegrou
38、ndandfromtheatmosphere NOTE Theexchangeoflongwaveradiationoccurspermanentlybetweenbuildings,thegroundandtheatmosphereat temperaturesbetween240Kand340K.ENISO159271:2003(E) 6 3.1.10 thermometerscreen whitepainted,wooden,plastic,oraluminiumlouveredenclosure,whichallowsafreeflowofairover thermometerswhi
39、leshieldingthemfromsolarradiation,longwaveradiationandprecipitation 3.2 Symbolsandunits Symbol Quantity Unit C R roughnesscoefficient C T topographycoefficient D winddirectionfromNorth d m numberofdaysinamonth d y numberofdaysinayear G l,a longwaveirradiancefromtheatmosphereonahorizontalplane W/m 2
40、G s G s,b G s,d solarirradiance direct(beam)solarirradiance diffusesolarirradiance W/m 2 W/m 2 W/m 2 G s,g globalsolarirradiance W/m 2 G s,r reflectedglobalsolarirradiance W m 2 H effectiveheightoftopographicfeature m H s solarirradiation MJ/m 2 h m numberofhoursinamonth K R terrainfactor L d actual
41、lengthofdownwindslope m L e effectivelengthofupwindslope m L u actuallengthofupwindslope m R rainfalltotal(orequivalentamountofmeltedsolidprecipitation) mm P totalatmosphericpressure hPa p watervapourpressure hPa p sat ( ) saturatedvapourpressureoverwaterattemperature hPa s scalefactorfortopographyc
42、oefficient T temperature K v windspeed m/s v gustwindspeed m/sENISO159271:2003(E) 7 Symbol Quantity Unit r v referencemeanwindspeed m/s s v meanwindspeedatasite m/s x mixingratio g/kg x sat ( ) saturatedmixingratiowithrespecttoliquidwaterattemperature g/kg y horizontaldistanceofsitefromcrestoftopogr
43、aphicfeature m z heightaboveground m z min minimumheight m z 0 roughnessheight m ratioofgasconstantofdryairtogasconstantofwatervapour ( =0,62198) airtemperature C upwindslopeoftopographicfeature relativehumidity 3.2.1 Subscripts Subscript Meaning a atmosphere dm meanoveraday dx maximumoveraday dn mi
44、nimumoveraday h valuesrepresentativeofanhour(eitherinstantaneousmeasurementsorthe meanofmanyreadingsinthehour) ic inclinationofasurface mm meanoveramonth N valuesrepresentativeofanumberofhours N(e.g.3h,6hor12hbutless than24h)(eitherinstantaneousmeasurementsorthemeanofmany readingsintheperiod) l longwave pq valueexceededfor q%ofthetime s sol
