Hypothetical new build climate zone 5 PDF

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Hypothetical new build climate zone 5 HD Assignment sample...

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AT2: Short Answer Question – Design for Climate

Housing context The project is a future, hypothetical new build located in (Climate Zone 5 – warm temperate). The build will be in a medium-density suburb of A tiny, stand-alone home is intended, and I would ideally like more garden than house space. There are some subdivisions of blocks currently happening that may be ideal. I will be the sole owner and occupier of the property and intend to live there for at least the next ten years, beyond that I am not sure. Climate context: 192 words temperature statistics are shown in Table 1. summers are hot, with a significant diurnal range of 13.1°C. Winters in are mild with diurnal range of 10.6°C. Table 1. Temperature statistics for Data from the Bureau of Meteorology 2020a. Season Mean monthly temperature (°C) Daily extreme (°C) Minimum Maximum Minimum Maximum Summer (January) 18.1 31.2 8.9-29.7 19.7-44.4 Winter (July) 7.9 18.5 0-16.5 12.5-25.8

is a windy city (Table 2). The as a cool southwesterly breeze in summer afternoons, which can be used for passive cooling. Table 2. Wind statistics for Season Summer Morning (January) Afternoon Winter Morning Afternoon (July)

Data from the Bureau of Meteorology 2020b. Wind direction Strength (km/hr) Likelihood (%) Easterly 20-30 35 South-westerly 20-30 40 North-easterly 0-30 30 None particular 0-30 15

Calm (%) 4 1 20 7

is generally flat with one- or two-story housing, so there is unlikely to be major shading or relief from the wind from microclimate factors. Shading will, therefore, be important given the hot climate. The windy conditions can also be used advantageously to passively cool the house through ventilation. References: Bureau of Mereology 2020a, Climate statistics viewed 28 October 2020, . Bureau of Mereology 2020b, Wind roses for selected locations in Australia, viewed 26 October 2020, .

AT2: Short Answer Question – Design for Climate Climate Design Priorities: 246 words High Thermal Mass Given the diurnal range of is greater than 7°, heavyweight materials with high thermal mass should be prioritized. These materials will absorb heat during the day and slowly release the heat at night, thus minimizing the extremes in daily temperatures. In summer, thermal mass must be used with nighttime ventilation, to ensure the materials can cool down. In winter, direct solar access to the materials is required for sufficient warming. Thermal mass should also be on the inside of an insulated space and exposed directly to internal air to be effective. Shading Creative shading design is needed to reduce the green-house effect in summer yet allow for solar passive heating winter. As the sun angles for range from 34.5° (winter) to 81.5° (summer), this can be achieved by favouring north-facing windows with an eave approximately 45% of the window height. This design maximises winter solar gain yet provides shade in summer. As temperatures are highly variable, flexibility in shading (through moveable shutters, eaves etc) is required to respond to daily conditions. Ventilation presents the ideal climate for passive cooling from ventilation, as it is hot and windy. Openings on the south-easterly side could capture the prevailing cool breeze. Higher openings on the north-western side could then draw out risen, hot air. Night purging is also important to expel warm air that has built up during the day and cool the thermal mass. Again, flexibility is important as conditions can change....