Self-sustaining communities in China

Micro-communities

War and conflict often bring about the destruction of architecture, however these forces can also result in new constructions that define a cultural identity and place.Stressed by China’s growing population, the Hakkapeople have been confronted with armed warfare for local resources since the 17th century. To remedy their situation the Hakka began building massive structures that could not only stave off intruders, but would also form amazing self-sustaining micro-communities complete with food storage, space for livestock, living quarters, temples, armories and more.

more>www.inhabitat.com

New windturbine to the neighbours´liking

Windturbine that silences NIMBYs

Rooftop solar panels are unlikely to elicit complaints from neighbors–they’re silent and relatively unobtrusive. But loud rooftop wind turbines? That’s where the virtually NIMBY-proof Ridgeblade turbine comes in. The turbine, designed by a former Rolls Royce turbine engineer at UK-based The Power Collective, boasts a sleek profile that is both powerful and visually pleasing.

continue> inhabitat.com

Barn architecture two

Dairy barn transformed

With a love for spaces in decay reused and delicately transformed, we like the plan for the old dairy barn transformed into a home by architect Charlotte Scene Cataling from Skene Catling de la Peña Architects .

More> www.egodesign.ca

Rolling hills of housing

Green building in Gothenburg, Sweden

Kjellgren Kaminsky Architects New Heden project transforms a vacant city block is a self-contained sustainable city interspersed with cycling paths and walkways. Envisioned as a “green lung” for Gothenburg, Sweden, the development will introduce a beautiful expanse of fresh green space to an area currently consumed by parking lots and football fields.

LINK> Inhabitat

Kjellgren Kaminsky Architects

Cement that eats CO2

Revealed: The cement that eats carbon dioxide

Tuomo Siitonen Architects´ plan for apartments in downtown Helsinki

Cement accounts for 5% of the world’s CO2 emissions – more than aviation. Now British engineers have discovered a new form of cement that instead reduces CO2 emissions. Cement is the key ingredient in concrete. In Finland, concrete is the most common material for building bearing structures of high-rise apartment houses.  Scientists predict, that worldwide, the demand for cement will grow by 50% in the years to come.

Cement, a vast source of planet-warming carbon dioxide, could be transformed into a means of stripping the greenhouse gas from the atmosphere, thanks to an innovation from British engineers.

Making traditional cement results in greenhouse gas emissions from two sources: it requires intense heat, and so a lot of energy to heat up the ovens that cook the raw material, such as limestone. That then releases further CO2 as it burns. But, until now, noone has found a large-scale way to tackle this fundamental problem.

The new cement, based on magnesium silicates, not only requires much less heating, it also absorbs large amounts of CO2 as it hardens, making it carbon negative. Set up by chief scientist at Novacem, Nikolaos Vlasopoulos and his colleagues at Imperial College London, the innovation has already attracted the attention of major construction companies and investors.

VIA > The Guardian

Finnish architecture in Latvia

JKMM -Art Nouveau now

The Finnish architecture office “JKMM” is planning an apartment building for Riga, Latvia. The project is a result of an international architecture competition for the building, that will be located in the famous art nuveau-district in Riga. The building could be categorized as nouveau art nouveau, new-jugend – still keeping it very contemporary.

Link> The project /JKMM

Risky play and treehouses

As architects we often get frustrated by building codes. Finnish building codes are strict, and cut in stone, there are no excuses made. A step higher than 40-50 cm; has to have a safety rail of 90 cm high. Apple trees in apartment building gardens; forbidden, raw apples can be toxic if consumed in huge quantities (and I mean HUGE). A staircase cannot be too narrow or too steep – ever. Etc, etc. By all these rules we think we make the world safer. But is safety first right? We are actually by eliminating risk, also eliminating part of life, and the process of learning. Learning gives you joy and confidence. And arent small risks so much more fun than someone telling you “play NOW!”.//aito

www.baumraum.de

Kids need the adventure of ‘risky’ play

A major study says parents harm their children’s development if they ban tree-climbing

A major study by Play England, part of the National Children’s Bureau, found that half of all children have been stopped from playing; climbing trees, playing conkers or taking part in games of tag or chase. Some parents are going to such extreme lengths to protect their children from danger that they have even said no to hide-and-seek.

‘Children are not being allowed many of the freedoms that were taken for granted when we were children,’ said Adrian Voce, director of Play England. ‘They are not enjoying the opportunities to play outside that most people would have thought of as normal when they were growing up.’

Voce argued that it was becoming a ’social norm’ for younger children to be allowed out only when accompanied by an adult. ‘Logistically that is very difficult for parents to manage because of the time pressures on normal family life,’ he said. ‘If you don’t want your children to play out alone and you have not got the time to take them out then they will spend more time on the computer.’

Voce pointed out how irrational some of these decisions were. Last year, almost three times as many children were admitted to hospital after falling out of bed as those who had fallen from a tree.

The tendency to wrap children in cotton wool has transformed how they experience childhood. According to the research, 70 per cent of adults had their biggest childhood adventures in outdoor spaces among trees, rivers and woods, compared with only 29 per cent of children today. The majority of young people questioned said that their biggest adventures took place in playgrounds.

Voce said Play England was determined to spread the message that children ought to be taking risks and that it is ‘not the end of the world if a child has an accident’. The latest study will be launched on Wednesday to coincide with Play Day, when hundreds of events will take place across the country to celebrate children’s right to play. It will show that play providers also feel the opportunities for children to ‘test and challenge themselves in play involving a level of risk’ have reduced over the past decade. They blame overcautious health and safety officers and the fear of litigation if children have accidents.

link> The Guardian

Electricity through my window

MIT opens new ‘window’ on solar energy

Cost effective devices expected on market soon

glass facades

Imagine windows that not only provide a clear view and illuminate rooms, but also use sunlight to efficiently help power the building they are part of. MIT engineers report a new approach to harnessing the sun’s energy that could allow just that.

The work, to be reported in the July 11 issue of Science, involves the creation of a novel “solar concentrator.” “Light is collected over a large area [like a window] and gathered, or concentrated, at the edges,” explains Marc A. Baldo, leader of the work and the Esther and Harold E. Edgerton Career Development Associate Professor of Electrical Engineering.

As a result, rather than covering a roof with expensive solar cells (the semiconductor devices that transform sunlight into electricity), the cells only need to be around the edges of a flat glass panel. In addition, the focused light increases the electrical power obtained from each solar cell “by a factor of over 40,” Baldo says.

Because the system is simple to manufacture, the team believes that it could be implemented within three years–even added onto existing solar-panel systems to increase their efficiency by 50 percent for minimal additional cost. That, in turn, would substantially reduce the cost of solar electricity.

…

LINK

> http://web.mit.edu/newsoffice/2008/solarcells-0710.html

WIRED SCIENCE: See-Through Solar Hack Could Double Panel Efficiency:

LINK> blog.wired.com

Energy from waste and the bottom of the sea

Vaasa Housing Exhibition runs on waste

The houses at the Housing Exhibition 2008 in Vaasa will be heated by energy from the old abandoned waste dump and by energy from the bottom of the sea.

-”We realized that the temperature of the sea bottom a few metres deep will remain at +8-9 degrees celsius even in the coldest winter. Up on land at the same depth the temperature is only +3-4 degrees. “, one of the two innovators of the idea tells. “Even the experts were surprised”.

The housing exhibition area has its own energy station that transforms and moves out the energy into the city´s energy network. The methane gas taken to use from the old waste dump in Suvilahti will last for twenty years, but the sea is a huge energy reservoir. “There is potential for the future”, Mauri Lieskoski says.//aito

Från den nedlagda sopstationen i Sunnanvik transporteras metangas till en nybyggd energianläggning. Enheten, utrustad med bränslecell och mikroturbiner, producerar el och värme som sedan körs ut i Vasa Elektriskas nät. Totalt får över 40 småhus och tre höghus sin el- och värmeenergi via mässans kraftverk.
Juvelen i kronan är det lågtemperaturnät som suger upp jordvärme från ett 40 meter tjockt sedimentlager på havsbottnen. Nästan åtta kilometer rör är begravda under vattenytan i Stadsfjärden.
– Nätet ska vara i bruk året runt. På somrarna används det till att kyla ner husen, säger Mauri Lieskoski på företaget Mateve.
Det var Vasaborna Lieskoski och Pertti Reinikainen som gjorde den sensationella upptäckten. Deras mätningar visade att medeltemperaturen i jordlagret är 8–9 grader på 3–4 meters djup – vintertid. Uppe på landbacken, i torr mark, är motsvarande temperatur 3–4 grader.
– Haven och insjöarna är stora solpaneler. Det handlar om enorma energikällor och värmeförråd, säger Lieskoski.
– Den största utmaningen består i att fördela värmen på ett jämnt sätt. Det fungerar bra på ett avgränsat område men vi vet inte hur långt man kan transportera havsvärmen. Det krävs mera forskning.
Fyndet överraskade energispecialisten Jarmo Kallio på Geologiska forskningscentralen.
– Bottensedimentet lagrar solvärme effektivt under sommaren. Tack vare vattenmassorna avkyls det inte ens under kalla perioder. Här finns stor potential.
Framtidens teknik
Bränslecellen har utvecklats av Wärtsilä. Kraftverket är det första i sitt slag som drivs med gas från en avstjälpningsplats. Mikroturbinerna och bränslecellen producerar en energimängd som motsvarar den årliga förbrukningen för 150 egnahem.
– Enheten tillverkar miljövänlig el- och värmeenergi med mycket hög verkningsgrad. Utsläppen ligger på en ultralåg nivå. Om några år kan man börja använda tekniken kommersiellt i hotell och butiker. Vi kommer till exempel att testa bränsleceller i fartygsmotorer, säger Juha Kytölä, vd på Wärtsilä Finland.
Sopstationen är ingen evig gasleverantör. Enligt Kytönen räcker metangasen i minst tjugo år, kanske längre.
– Fördelarna med decentraliserad energiproduktion är att kraftverken kan utnyttja lokala energikällor effektivare. Dessutom blir bränsletransporterna kortare.
Stort intresse
Enligt Henrik Vehkaoja är lågtemperaturnätet en relativt billig affär för husbyggarna.
– Investeringskostnaderna är höga, men driften är billig. Intresset har varit stort. Merparten av husen kommer att vara anslutna till nätet.
Anslutningsavgiften för ett egnahem är 1 500 euro plus moms. Energiförbrukningen mäts inte men hushållen betalar en bruksrättsavgift på 2,50 euro plus moms per uppvärmd kvadratmeter och år.
Satsningen i Vasa har väckt uppmärksamhet också utomlands. I den senaste upplagan av State of the World, som ges ut av Worldwatch-institutet, används Vasaprojektet som exempel på att det går att producera energi ur biogas från avstjälpningsplatsen.

– Projektet kan tjäna som föredöme för hela energisektorn. Det här är hållbar utveckling och ekologiskt boende, säger projektchef Keijo Ullakko.

(link) HBL continue>

(link) Pohjalainen

(link) Asuntomessut

The living housing block

La tour vivante – the vertical farm

Grow your own food!

Would you have ever thought it conceivable to grow vast amounts of produce in the heart of densely populated cities ?

The concept of eco-tower “Tour Vivante” aim is to associate agricultural hydroponic production, dwelling and activities in a single and vertical system.

A continuous agriculture, emancipated from seasons and climatic hazards (drought, flood, weather), which provides a production 5 to 6 time better than open fields cultures.

Tour Vivante allows a local production and to wipe out transportation needed for food supply and thus, the process of the very energy-consuming preservation.

The hydroponic agricultural production purifies the districts air by the provision of plants oxygen.
An efficient use of salvaged rainwater is transformed into drinking water by the evaporation/respiration of plants.
Tour Vivante generates a large amount of methane or electricity by the fermentation of food waste and vegetals.

Located at the top of the tower, two large windmill directed towards the dominant winds produce electricity facilitated by the height of the tower. The produced electric power is about 200 to 600 kWh per annum.

4 500 m of photovoltaic panels included into the facades generate electricity from solar energy.

This tower will have as well : Rainwater and Black water systems, Ecological or recycled materials and Thermal and hygrometrical regulation.

Vertical farming could revolutionize the way we produce food. This new model could replace, traditional farming methods. This is one idea where the sky is truly the limit.

www.livingtower.new.fr

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