strategy and design
Atfer the site analysis, wind pattern research and material (piezoelectricity) research, we decided to make a high density and sustainable housing community, a housing complex in a small part of the general site (London City Airport), which aims to settle the problem of housing shortage and the high house price. Also, we want to make sustainable energy strategy for the community, whichi means, on the one hand, most of the energy consumed by the residents is from renewable resource, like solar, wind, and water, instead of using fossil fuel as now. According to the data from GOV.UK, by 2013, total electricity production stood at 335 TWh (down from a peak of 385 TWh in 2005), generated from the following sources: Gas: 30.2% (0.05% in 1990) Coal: 29.1% (67% in 1990) Nuclear: 19.0% (19% in 1990) Wind: 9.4% (0% in 1990) Bio-Energy: 6.8% (0% in 1990) Hydroelectric: 1.8% (2.6% in 1990) Solar: 1.2% (0% in 1990) Oil and other: 2.5% (12% in 1990) On the other hand, we tried to make the community produce as much as possible energy for its own use, such as daily living consumption, and public facilities, or even have possibility to provide surrounding area. We also do some case studies about the high density communities, Habitat 67, designed by the IsraeliCanadian architect Moshe Safdie as the Canadian Pavilion for the World Exposition of 1967, was originally intended as an experimental solution for highquality housing in dense urban environments. Safdie explored the possibilities of prefabricated modular units to reduce housing costs and allow for a new housing typology that could integrate the qualities of a suburban home into an urban high-rise. Also, some wind energy generate architecture, like Strata Tower in London, it is from 2010 and is 148 meters high and have 43 storeys. At the top it has installed three wind turbines, each of 19 kW, which are expected to deliver up to 8% of the building's energy needs.
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As the building was planned consideration was given to several different forms of renewable energy, but the choice fell on wind turbines because of the height of the building and because they were very visible and thus could expose renewable energy. To do this, the proposal is to use wind as a tool in the design process. Different from most cases which use wind as a evaluation tool, we want to use it not only to evaluate the housing configureation, but also as a shape finding method to generate the housing complex. We started from the wind errosion simulation for the complex in Realflow to do the shape finding; Then we used grasshopper algorithm to transfer the particles from the realflow into the cubes which will be the houses or the energy capture facilities. After that, we put the configuration back to the CFD application to test the new wind conditon in the area, including the wind pressure on the cube facades and wind pattern in the community, so as to choose one option which can generate most energy compared with other options. Finally, having decided the configuration we will use to build the housing complex, we next classify the cubes its wind velocity arround them, which will be a basis data to decide whether the cube will be make as housing cubes or cubic frame with piezo panel. During this procedure, we tried to balance the population capacity and wind energy generating capacity, and get the best solution.
Section of Habitat 67
Habitat 67
"Stastistics at DECC - Department of Energy & Climate Change - GOV.UK". Decc.gov.uk. Retrieved 5 October 2013. "A Look Back at Habitat '67 with Moshe Safdie", by Amanda Demaron. "Habitat 67, Old Port of Montreal". http://www.the fabweb.com/
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conceptual strategic elements
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