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1、,Case Study Project Exeter Library4243323,Exeter LibraryLouis Kahn,“Inspiration is the feeling of beginning as the threshold where Silence and Light meet.Silence,the unmeasurable,desire to be,desire to express,the source of new need,meets Light,the measurable,giver of all presence,by will,by law,the
2、 measure of things already made,as a threshold which is inspiration,the sanctuary of art,the Treasury of Shadow.”“No space is really an architecture unless it has natural light.”“Evenaroom which must be darkneeds at least a crack of light to know howdarkit is.”“A great building,in my opinion,must be
3、gin with the unmeasurable,go through measurable means when it is being designed,and in the end must be unmeasurable.”“I see the library as a place where the librarian can lay out the books,open especially to selected pages to seduce the readers.There should be a place with great tables on which the
4、librarian can put the books,and the readers should be able to take the book and go to the light.”If you were given the first commission before libraries were ever built to build a place where these books can be,what would you do?That is the thought you have about its nature when you are given the pr
5、ivilege of designing a building.There could be indecision as to what a library is.It depends on how much you love the book,how much you think it should not taken out and its being so precious that nobody disturbs its location.”,Exeter Library design philosophy,Jan-May and Sep-Dec need heatingJune-Au
6、g can be free runningLocation:Exeter,New HampshireLatitude:43 Summer solstice:70 Winter solstice:23 Equinox:49,Exeter Library micro-climate analysis,Exeter Library shadow analysis,equinox,Summer solstice,Winter solstice,9.00,12.00,15.00,18.00,9.00,12.00,15.00,18.00,9.00,12.00,15.00,18.00,Exeter Libr
7、ary SOLAR AZIMUTH,equinox,Summer solstice,Winter solstice,/,Exeter Library SOLAR ANGEL,Summer solstice12.00:70,Winter solstice12.00:23,Equinox12.00:49,Exeter Library space sequences,6,N,8,OVERCAST SKY,OVERCAST SKY,OVERCAST SKY,Exeter Library space sequences,OVERCAST SKY,Sunny sky,OVERCAST SKY,Exeter
8、 Library space sequences,Exeter Library space sequences,OVERCAST SKY,OVERCAST SKY,OVERCAST SKY,OVERCAST SKY,Exeter Library space sequences,http:/,Sunny sky,overcast sky,Sunny sky,http:/,Exeter Library space sequences,daylight factor（%）,daylight factor（%）,Exeter Library window typology,Size:1.85m*4.6
9、m number:32Not openable,Size:1.45m*2.2mnumber:24 Not openable,Size:2.5m*0.8m number:12 Not openable,Size:1.85m*4.6m number:64 Not openable,Size:0.9m*7.8m number:4 Not openable,Exeter geometry analysis,Exeter analysis,Exeter Library facade,Exeter Library design development,Exeter Library sections,Exe
10、ter Library scale analysis,Exeter Library research questions and methodologies,TopicThe Environmental performance of light and heat in Exeter library by louis kahnObjectivesThe daylight performance in the building in different areas including the atrium,book collection area and the reading area.The
11、potential thermal problem in the reading area because of the full glass when it is free running.The energy consumption to keep the temperature in the mechanic building.Research questions How would the side faade and atrium work together to achieve the designed luminosity?What is the impact of glass
12、faade on the thermal environment in the reading area?AssumptionThe atrium can benefit from the roof light and the book collection area can not benefit because of the book need to be protected from the daylight.It may experience overheating in the hot summer because of the full glass and it may cause
13、 the heat loss in winter.MethodologyComputer models：sketch up,pda,iesve,ecotect radiancePhysical model:heliodon and overcast sky,Exeter Library PDA analysis,On the coldest day,On the hottest day,Exeter Library case one,Average daylight,Average daylight factor:3.95,Exeter Library case one,Reading are
14、a,Collection area,Reading area,Atrium,Collection area,daylight factor（%）,daylight factor（%）,Exeter Library case one,Exeter Library case one,Exeter Library case one,Exeter Library case one,Exeter Library case one,Exeter Library case one,Exeter Library case one,Exeter Library case one,Exeter Library c
15、ase one,Exeter Library case one,Exeter Library case one,79280,Exeter Library case one,Exeter Library case one,Exeter Library case two,Average daylight factor:4.05%,Exeter Library case two,Exeter Library case two,Exeter Library case two,Reading area,Collection area,Reading area,Atrium,Collection area
16、,daylight factor（%）,daylight factor（%）,Exeter Library case three,Average daylight factor:4.3%,Exeter Library case three,Exeter Library case three,Exeter Library case three,Reading area,Collection area,Reading area,Atrium,Collection area,daylight factor（%）,daylight factor（%）,Exeter Library reference,
17、Lobell,J.and Kahn,L.(1979).Between silence and light.Boulder:Shambhala.Gargiani,R.and Piccolo,S.(n.d.).Louis I.Kahn.Dietsch,D.and Steeneken,S.(1981).Architecture in the public realm.New York:Columbia University Graduate School of Architecture and Planning.Brownlee,D.and De Long,D.(1997).Louis I.Kahn.New York,NY:Universe Pub.Alexandra Tyng(1984)Beginnings:Louis I.Kahns Philosophy of Architecture(1984),
