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1、VIPartLIGHTING33ChapterDaylightingUntilrecently,theworkdayendedwhenthesunwentbuilding.Inthelastdecade,daylightinghasbeenlinkeddown.Attheendoftheday,everyonehuddledaroundtoincreasedproductivity.Thepromiseofevenamod-thefire,andthenheadedofftobedinthedark.Fire
2、s,est1percentincreaseinproductivityislikelytoappealcandles,andoillampsprovidedweakillumination,andtoabusinessownermorethanabuildingthatis20per-wereoftentooexpensiveforpoorerpeople.Peoplede-centmoreenergyefficient.Thepotentialforagoodday-pendedondaylightente
3、ringtheirbuildingstogivelightingdesigntoimproveproductivity,evenbyasmallenoughlightfordailytasks.Architectsandbuildersun-increment,andthustoincreasecorporateprofits,isaderstoodtheroleofnaturallightinbuildingsintuitively.strongjustificationforadaylightingdes
4、ign.Buildingorientations,configurations,andinteriorfin-isheswereselectedtoprovidesufficientlevelsofday-lightingininteriorspaces.Whenenergyischeap,itistemptingtoeliminatePHYSIOLOGICALEFFECTSthevariationsinherentindaylightandsupplyallinte-OFDAYLIGHTINGriorlig
5、htingwithelectriclightingsupplementedbyafewwindows.AlthoughdaylightingofferssignificantInproperamounts,ultraviolet(UV)raysfromthesunopportunitiesforenergyconservation,thebudgetforhelpourbodiesproducevitaminDandkeeptheskinlightingoperationandmaintenancerepre
6、sentsonlyahealthy.Inaddition,UVlightdilatesskincapillaries,verysmallportionoftotalbuildingcostsoveritsentirecausesbloodpressuretofallslightly,createsafeelingoflifecycle.Itisdifficulttojustifydaylightingoncostsav-well-being,quickensthepulserateandappetite,an
7、dingsalone.However,anenergy-consciousapproachisstimulatesenergeticactivity,perhapsevenincreasingmandatedbymanybuildingcodes,anddaylightingisworkactivity.Ontheotherhand,overexposuretoUVoneofthemosteffectivewaystoreduceenergyuse.rayscandamagetheskinandcausema
8、lignanttumorsInadditiontobeinganeconomicalresponsetoandcataracts.WereceivealmostnoUVinanartificiallycode-mandatedenergybudgets,daylightingcansavelitenvironment.ThereisalmostnoUVinincandescentbusinesses
