concept
WIND DIAGRAM Access
Due to the site’s location surrounded on all sides by buildings of similar heights - it does not recieve a lot of natural ventilation.
The site is currently accessed from Abercrombie Street (on the south) and Raglan Street (on the western side), The site is currently used as a car park and has a small service road running through it. In order to build student housing, this connection would need to be severed and the site would need to isolate that connection.
A site analysis showed that the site recieved on average less than 1 knot of wind at around 1.7 metrers on a day with fine weather,
Shadow Studies
21 March/23 September
21 June
21 December
A psychometric anaylsis of Sydney shows that a design can achieve 100% comfort throughout the year if both active and passive cooling methods are used. Most importantly, a majority of comfortable hours throughout the year can be achieved through passive methods alone such as shading windows, using thermal mass to store heat during the day and to radiate throughout the night, as well as natural ventilation methods.
380 Abercrombie Street BAEN2002 | Design Integr ation lab:Energy
Student Housing
Jarrod Haynes | 440173788
CLIMATE RESPONSE S TRATEGIES
[2] Median EUI values for Australian Buildings
[1] Glass to mass ratios in Australian cities.
The amount of thermal mass to glazing requirements in Sydney are some of the highest (after Hobart). Any design should aim to effectively use thermal mass to store heat during winter days to be radiated throughout the night.
Currently, the national median Energy Usage Index value for Australian Residence Halls/Dormitories is around 180. Any vlaue significantly less than this value would be well within The 2030 Challenge goal of a median EUI of 12.
[4] Passive thermal mass design
[3] Casement Window, Passive Design
The use of angled casement windows can ensure that cooling winds can penetrate apartments and communal spaces to keep them cool throughout the summer months while ensuring that any excess heat can escape.
Heating costs can be reduced throughout the year by ensuring that the low winter sun can reach internal thermal mass. Effective ventilation will also ensure that the radiated heat from internal thermal mass can circulate and increase human comfort.
Sources: [1] Baggs & Mortenson 2006. ‘Glass to mass ratios in Australian cities’. http:// www.yourhome.gov.au/passive-design/thermal-mass [2] Energy Star, ‘National Median EUI’, https://www.energystar.gov/buildings/ facility-owners-and-managers/existing-buildings/use-portfolio-manager/understand-metrics/what-energy [3] ‘ Sun, Wind and Light: Architectural Design Strategies’, https://www.academia.edu/2430484/SUN_WIND_and_LIGHT_Architectural_Design_Strategies_3rd_edition [4] Your Home, ‘Thermal Mass’, http://www.yourhome.gov.au/passive-design/ thermal-mass
380 Abercrombie Street BAEN2002 | Design Integr ation lab:Energy
Student Housing
Jarrod Haynes | 440173788
concept
Broader context
The use of narrow windows that span from the floor to the roof ensures that sunlight and passive southern light can penetrate each room. Ensuring that communal areas (on the northern side) are effectively cross-ventilated ensures that comfort can be achieved for a majority of the residents for a majority of the day.
Double glazed casement win-
380 Abercrombie Street BAEN2002 | Design Integr ation lab:Energy
Student Housing
Jarrod Haynes | 440173788
ANALYSIS
Although most of bthe building is overlit, the lower level, when measured from six feet high, is lacking direct sunlight throughout the year. Carful attention to how light is being directed and captured can help to overcome these problems, reducing heating and lighting costs throughout the year.
Analysis and Results
After analysing my design in Sefaria, it is apparent that, although my design has a relatively low energy use intensity rating, the design has some faults that - with careful attention - can be overcome.
380 Abercrombie Street BAEN2002 | Design Integr ation lab:Energy
Student Housing
Jarrod Haynes | 440173788