ARCHITECTURE A BIONIC AND ENERGETICALLY SELF-SUFFICIENT ARCHITECTURE the Dragonfly by Vincent Callebaut architect The architecture of Dragonfly prototype suggests reinventing the vertical building (that outlined the urbanistic booming of New York City since the 19th Century) as structurally and functionally as ecologically and energetically. To ensure the social diversity and a permanent life cycle (24h/24) in the tower, the mixed programmation is mainly laid out around two poles of housing and work places. Around housings, offices and research laboratories as well as the most private to the most public agricultural and leisure spaces are designed in gardens, kitchen gardens, orchards, meadows, rice fields, farms and suspended fields. The distribution of flows is made around a true safe spine spreading in loop the numerous elevators, the goods elevators and stair wells serving all the levels by separating simultaneously the inputs and the outputs recycled from plants, animals and human beings. Architecturally, the functional organisation is represented by two oblong towers symetrically arranged in pair around a huge climatic greenhouse that links them and deploys itself between two crystalline wings. These very light wings in glass and steel retake the loads of the building and are directly inspired from the structure of the dragonfly wings coming from the family of “Odonata Anisoptera” whose transparent membrane is very finely nervured. Two inhabited rings buttress around these wings. Their organically chiselled exo-structure accommodates the inter-climatic spaces that receive the agrarian cultures. They buttress. The whole set forms «double layer» architecture in bee nest mesh that exploits the solar passive energy at its maximum level, by accumulating the warm air in the winter in the thickness of the exo-structure, and by cooling the atmosphere by natural ventilation and by evapo-perpiration of the plants in the summer. Protecting thus the cultures from climatic changes in New York (from -25.5°C in the winter to +41°C in the summer), these plug spaces are useful to reflect on the agriculture not anymore in terms of surface area but really in terms of volume. Actually, whereas grounds nourish orchards, each wall and each ceiling are metamorphosed into three-dimensional kitchen gardens. The interior frontages of the housing and offices throw towards the skyline of New York the cantilever of their hydrophonic balconies with hexagonal section thanks to what it multiplies the culture layers by floors. The vegetation abounds, the earth is swarming of insects and animals are freely brought up in holding tanks by urban consumers with low income. The architecture becomes eatable ! In addition to this thermal called « passive » system, the integration of renewable energies has been thought from the design of Dragonfly to meet the needs of a completely energetically self-sufficient project in urban centre. Actually, the South prow of the tower receives in all the heights of its curve a solar shield producing half of the electric energy needed for its functioning. The other half is ensured by the three wind machines with vertical axes of Darrieus type that coils itself up in the three lenses hollowed in the North part of the micro-pearled shell towards dominated wind of New York. The exterior façades of the tower present a double personality. Actually, in the West of the Island near Manhattan, the façades are treated in planted walls, whereas in the East near the Queens’ district, the wet exterior walls are cultivated with tropical essences. These vertical gardens enable to filter the rain water and the effluents of domestic liquid waste of the tower inhabitants. The collected waters undergo an appropriate organic treatment for the farming reuse, bringing all the nitrogen and an important part of phosphor as well as potassium needed for the production of fruits, vegetables and cereals. Outlining the bank of the Roosevelt Island, the tower widens at each side of its basis to better integrate the flows that cross it and to welcome two marinas along the East River. This widening out forms two huge photovoltaic vaults such as a solar dress floating above these two urban harbours: on the western marina side, the wooden pontoons of the taxi boats open panoramically on the Midtown bank and on the eastern marina side, the floating market oriented towards the Queens’ district is designed to distribute through the river the food production of this vertical farm to the heart of Manhattan and to its million and a half of city slickers. Moreover, these two marinas accommodate two huge aquaculture ponds, true tank of soft water filtered by the planted frontages and dedicated to be reinjected in the hydroponic network of the Dragonfly tower. According to the evolution of the urban agriculture enhanced by the FAO (Food and Agriculture Organization of the United Nations) that has been realising since 2007 that the organic agriculture on a large scale would be able to nourish the planet, the Dragonfly project challenges the city of New York to rethink its food production. In response, this project of inhabited vertical farm replies to the contemporary dilemma of producing not only ecologically but also more intensively on non-extensive earth. This by merging also directly production place and consumption place in the heart of the city! Vincent Callebaut Architect
Posted on: Fri, 18 Jul 2014 14:01:50 +0000
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