Technology & Environment 2
location,condition,response 2: microclimatic Pavilion internet cafe-george square gardens
shimal morjaria/jonathan piper/greg robins/oscar selemba
contents location microclimate analysis
condition shaddow and wind simulation
response environmental stratagies technical drawings thermal performance lighting response acoustic behaviour three dimensional
renders
edinburgh
Technology & Environment 2
location,condition,response 2: microclimatic Pavilion internet cafe george sqaure
location ,condition,response 2: microclimatic Pavilion
1:500 location plan
location ,condition,response 2: microclimatic Pavilion
3d simulating of sun path
21st june- these results conclude that in the summer month of june, very little of the site is in the shade, during the hours between 9 am and 3 pm. location,condition,response 2: microclimatic Pavilion
3d simulating of sun path
21st march/september- the following results conclude that in the months of march and september, there is a larger shaddow cast in geogre sqaure, than during the high sun months of summer. location,condition,response 2: microclimatic Pavilion
3d simulating of sun path
21st decemeber- in the winter months, the site is overwhelmed by overshadowing and the sun rarely meets the gardens. after considering these 3 points in the year. it is concluded that the north west quadrant of the site offers the greatest solar gain.
location,condition,response 2: microclimatic Pavilion
3d simulation of wind path
the diagram conveys a strong wind movement from south west to north east through the site during the months from july through to may. The quadrant corners in the north west and the south east remain sheltered from the strong winds.
location,condition,response 2: microclimatic Pavilion
3d simulation of wind path
a lilghter wind blows in the opposing direction during the months of may and june. north west and south east qaudrants remain shelter, thus revleaing optimum postitions for minamal wind. upon cross referencing the wind path and building shadow casting, it is concluded that the north west quardrant is the most suitable location for the situation of a microclimate pavilion. location,condition,response 2: microclimatic Pavilion
3d simulation of wind path
the following image shows the building in its situatied context and its response to the south westerly wind. the oversized triangular walls shelter the entrance and exterior space(pink)from the prevailing winds.
location,condition,response 2: microclimatic Pavilion
the grass roof was a key element in the environemtal response, as it increases biodiversity and thermal mass.
the rain water collection system collects rainfall, via drainage in the slope, then filters and stores to be reused in the flushing of toilets and watering of the green roof.
District heating systems are managed by combined central heat and power plants as well as boilers located next to edinburgh university library. heating is pupmed through pipes, heating the building through cold periods.
this diagram demonstrates the key stratagies employed by the microclimatic internet cafe. location,condition,response 2: microclimatic Pavilion
1:100 plan
outdoor space circulation toilets reception working space group meeting space catering
1:100 diagramatic plan
location,condition,response 2: microclimatic Pavilion
1:100 elevation
1:100 Section
1:1000 north-south section (east facing)
1:1000 east-west section (north facing)
200mm re-inforeced concrete slab 1
200mm turf & soil 2
50mm acrylic drainage 3 layer 100mm sand & cement 4
100mm phenolic foam board 5 100mm timber roof joists 6
50mm external board cladding 7
150mm insulation fitted within timber frame 8
250mm Concrete Block 9
50mm Internal Ply Wood 10
7
8
9
10
location,condition,response 2: microclimatic Pavilion
sunray
cross ventilation cooling during the day summer day
re-emittance of heat at night summer night
sunray
thermal mass absorbtion of heat winter day
heat is then re-emitted back into building at night winter night
1:100
location,condition,response 2: microclimatic Pavilion
during the summer months the solar gain and the heat emittance from the computer may create an uncomfortable enforonment, to solve this problem the large windows can be opened to create air flow across the building.
cross ventilation
1:50 section
interior render illustration cross ventilation
location,condition,response 2: microclimatic Pavilion
quantifying daylight
Quantifying Daylight Average Daylight factor average daylight factor
Transmittance (T) = 0.7 Area of windows (W) = 36m2 Angle of unobstructed view of sky ( ) = 55째 Area of all room surfaces (A) = 285 The area weighted reflectance of all room surfaces (R) =
Rwindow= 36 x 0.1 = 3.6 Rwall = 120 x 0.2 (Timber panelling) = 24 Rceiling = 64.5 x 0.6 (White emulsion paint on concrete) = 38.7 Rfloor = 64.5 x 0.35 (carpet) = 22.575
Average Daylight Factor = 5.40% location,condition,response 2: microclimatic Pavilion
interior render illustrating sunliight
location,condition,response 2: microclimatic Pavilion
artificial lighting
location,condition,response 2: microclimatic Pavilion
interior render illustrating artifical lighting
location,condition,response 2: microclimatic Pavilion
Calculating reverberation time for Internet café interior Area of Walls – 120m2 Area of Glazing – 36m2 Area of Ceiling – 64.5m2 Area of Floor – 64.5m2 Volume of room = Area of floor x Height = 64.5m2 x 3m = 193.5m3
Absorption Coefficient Plywood Glass window Concrete slab ceiling Heavy carpet on concrete
250Hz 0.20 0.25 0.02 0.06
500Hz 0.10 0.18 0.04 0.16
Majority of noises produced in an Internet café are from conversation. Therefore the above frequencies were chosen as they appropriately represent the average frequency of a male voice (250Hz) and a female voice (500Hz).
Absorption Coefficient for 250Hz
Absorption Coefficient for 500Hz
120 x 0.20 = 24
120 x 0.10 = 12
36 x 0.25 = 9
36 x 0.18 = 6.48
64.5 x 0.02 = 1.29
64.5 x 0.04 = 2.58
64.5 x 0.06 = 3.87
64.5 x 0.16 = 10.32
Total = 38.16
Total = 31.38
TR = 0.16 x
TR = 0.16 x
TR250 = 0.16 x
TR500 = 0.16 x
TR250 = 0.81s
TR500 = 0.99s
high absorbtion in interior surface materials
The low reverberation time attained is optimum for the environment of an Internet café as conversations over video calls are not carried through the room, hence providing the required privacy.
location,condition,response 2: microclimatic Pavilion
location,condition,response 2: microclimatic Pavilion
location,condition,response 2: microclimatic Pavilion
location,condition,response 2: microclimatic Pavilion
location,condition,response 2: microclimatic Pavilion