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Un chercheur de l'université de Sydney qui a développé un matériau 'hyper réflectif', lui permettant de ne pas (trop) chauffer par le rayonnement solaire. Là où une toiture en zinc monte à 65°, ce matériau reste à la température ambiante. Surtout utile dans les pays chauds pour éviter la surchauffe (transfert de chaleur de la couverture vers l'intérieur du bâtiment). En belgique, on compte parfois sur cette forte chaleur pour assécher la paroi en été de l'humidité accumulée toute l'année. (FAAST).
A new, ultra-reflective roof material is the first to stay cooler than the surrounding air.
As summers keep getting hotter because of climate change, it sets up a vicious cycle: By the end of the century, the world may be using more than 30 times more energy for air conditioning, pushing temperatures up even more. But a new variation on cool roofs could help.
A typical dark roof soaks in sunlight, heating up the building underneath and releasing more heat back into the surrounding neighborhood at night. While cool roofs—made from white, reflective material—aren't new, they still absorb some heat. A new material is the first to actually stay cooler than ambient air.
University of Technology, Sydney
"What we set out to do was maximize the solar reflectance to see how far it could be pushed...to see the extent of further improvements that are possible with open roofing technologies," says Angus Gentle, a researcher at the University of Technology Sydney, who developed the material along with physics professor Geoff Smith.
By adding layers of plastic on top of silver, the researchers were able to create a roof surface that bounces sunlight back into space, leaving it as much nine degrees cooler than a state-of-the-art cool roof. "The coating keeps the roof cool by reflecting almost all of the incoming solar radiation," Gentle says. "A vast majority of this emitted radiation goes directly into space without being absorbed by the atmosphere."
University of Technology, Sydney
Compare that to a standard roof—which absorbs as much as 90% of light—or the best cool roofs, which can only reflect 70% to 85% of sun. "This still equates to a summer heat load of 150-300 watts per square meter of heat being absorbed," says Gentle. In cities, roofs are a major driver of the so-called urban heat island effect, keeping urban neighborhoods several degrees warmer than less developed areas nearby.
Plastered across a neighborhood, the new roofs could help keep local temperatures down, while also directly keeping individual building more comfortable. And if fewer people have to crank up the AC in a city, that helps reduce the chance that the power company will have to flip on an extra power plant—often running on coal—to meet peak demand on the hottest days.
In tests, the new roofing material stayed cool even after it was coated in dust and grime from polluted city air.
Though the material is still in the lab, it uses commonly available, affordable materials. "There are various options for lifting current roofing products towards these results," says Gentle.
[Top Illustration: Petr Vaclavek via Shutterstock]
Une nouvelle université à New York, par les architectes Marion Weiss and Michael Manfredi. L'intérêt ici est d'avoir astucieusement mélangé, dans le même bâtiment, l'université et un bâtiment tertiaire 'traditionnel' permettant de faire des liens permanents entre le monde académique et de terrain... Idée à mettre dans un coin de sa tête... (FAAST).
Cornell Tech is building a new type of campus where companies and academia will work together more closely than ever.
At New York City’s newest university, the Ivory Tower is being declared dead before it even gets built.
That’s the philosophy embodied in the name the Bridge, one of three buildings slated to open in 2017 during the first phase of construction of Cornell Tech’s new $2 billion, 12-acre campus on Roosevelt Island. The graduate school—a pillar of New York City’s efforts to grow its tech economy—is not shy about its desire to knock down traditional barriers between academia and industry collaboration. The Bridge, formerly referred to as the "corporate co-location" building, is where the action will happen.
"It's taking this notion of the commercialization of academia to a higher plane," says MaryAnne Gilmartin, CEO of Forest City Ratner Companies, the owner and developer of the building. She revealed the name exclusively to Co.Exist before a groundbreaking ceremony on June 16 (see a promo video here). Cornell Tech will lease about one-third of the seven-story building, while a co-working space and a mix of startups and larger companies will occupy much of the rest of 200,000 square-feet.
Stanford University is probably the school best known for working closely with the tech economy it helped create. For better, or some say for worse, the walls between Silicon Valley and the school are fluid today. Cornell Tech is looking for similar deep connections with industry, but it knows it needs to go about it more deliberately.
"We’re trying to build a different type of tech ecosystem in a different city with a different character," says Greg Pass, Cornell Tech’s Chief Entrepreneurial Officer and the former CTO of Twitter. "Stanford is really sitting adjacent to industry—it’s more natural and organic, the collaborations there. New York is a much bigger city, and it’s a much more diverse city. There’s so much more going on, which is wonderful, but it also requires a bit more design to make the collaboration happen. It can’t be as organic."
The Bridge is unusual for New York office space in that it doesn't have pre-leased anchor tenants other than Cornell Tech. The companies in the building will be carefully curated by Forest City Ratner, in discussions with the university. The goal is to bring in an eclectic mix of startups (ideally involving the school's graduates) and larger companies working on applications that match Cornell’s program areas: connective media, the built environment, and health tech. However, established companies won't be an ideal fit unless they bring in an R&D unit or entrepreneurial project detached from headquarters, says Gilmartin. Nor will leases generally last more than a few years, so there can be a constantly rotating mix of ideas. Right now, the team has a list of first-choice tenants it's courting.
"Much about academia is rooted in the industrial age," says Pass. "We're about reinventing academia for digital age."
The design of the open, loft-like glass building, which will sit alongside an academic building and residential building, is meant to facilitate interactions between and among students and companies. Designed by architects Marion Weiss and Michael Manfredi, it will contain indoor and outdoor shared spaces for conversations, gatherings, and events. At the campus level, there will be a glass central atrium that opens to the campus and offers stunning views of Manhattan and Queens. Though there will be private spaces for companies with intellectual property needs, anyone will be able to walk by a studio space in the building and see what’s being built in inside. "That kind of transparency is not common for a building—to be able to walk around and get a sense of its production," says Pass.
Today, Cornell Tech, which is actually a partnership between Cornell University and Israel’s Technion university, is already up and running at a much small scale, using space inside Google’s Chelsea headquarters. An emphasis on real-world applications runs through everything the program does, from its unorthodox hiring criteria for faculty to its requirement that students design products or businesses to graduate, advised by mentors who from the tech or business world. Five spin-out companies came from the most recent graduating class, says Pass. So far, almost 100 students have graduated in the first two years of the program.
For the city, which launched the campus by awarding the prime real estate and putting in $100 million, there is a bet that Cornell Tech can help the innovation economy flourish and create more companies rooted in New York. While the city’s tech and startup clout has grown a lot over the years, it’s yet to birth many major companies like Google or Facebook. In a first-of-its-kind collaboration, the U.S. Department of Commerce evenplans to station a U.S. patent officer there.
Gilmartin believes that the building itself is a model for a new type of office building that fosters collaboration among tenants.
"Individual companies have done it in their space—you see places that have been designed for high performance, high connectivity, and high creativity. But I think the idea that it’s happening beyond the boundaries of a particular company [or university] is interesting," she says. "Our job is not to hyper manage it, but to allow it to become whatever it wants to become."
[All images credited to architects Weiss/Manfredi.]
The U.S. Department of Commerce doesn't plan to open a patent office at Cornell Tech, but it does plan to station a patent officer. This article was corrected.
Joli challenge pour les fans d'impression 3D. Un premier pont va être imprimé à Amsterdam... (FAAST).
La société de R&D en impression 3D, MX3D prévoit d’imprimer un pont sur un canal. Il est à espérer que les robots utilisés imprimeront leurs propres supports et se déplaceront peu à peu sur l’eau, en créant le pont au fur et à mesure.
Le projet est une collaboration avec, entre autres, la société de logiciels de conception Autodesk et l’entreprise de construction Heijmans et intégrera de la robotique, du génie logiciel, de l’artisanat et du design. Le designer Joris Laarman, qui a déjà travaillé avec la société MX3D pour imprimer des sculptures en 3D qui se tiennent debout, utilise les logiciels Autodesk pour concevoir ce qui est décrit comme «un pont métallique orné » (ornate metal bridge)
« Je crois fermement en l’avenir de la production numérique et de la production locale, dans un nouveau métier», lance Joris Laarman. « Ce pont va montrer comment l’impression 3D entre enfin dans le monde des objets fonctionnels à grande échelle et les matériaux durables, tout en permettant une la liberté de forme sans précédent. »
MX3D affirme que le projet est rendu possible par sa technologie d’impression 3D robotisé qui permet effectivement dessiner en l’air. Les robots industriels multi-axes qui seront utilisés, peuvent imprimer des métaux, des plastiques et des combinaisons de matériaux.
«Ce qui distingue notre technologie des procédés d’impression 3D traditionnels est que nous travaillons selon le principe « d’impression en dehors de la boîte » le directeur technique de MX3D, Tim Geurtjens, » En imprimant avec des robots industriels à 6 axes, nous ne sommes plus limités à une boîte carrée dans laquelle tout se passe « .
Pour le projet de pont, les robots imprimeront avec de l’acier. Ils utiliseront des bras spécialement conçus qui chauffent le métal à 1 500°C avant de souder la structure. Cette approche signifie que des structures peuvent être créées de manière solide, durable et complexe.
Qui plus est, il est à espérer que l’ensemble du processus se déroulera sur place. En supposant que ce soit le cas, les robots vont commencer à créer la structure d’un côté du canal et créeront des supports de rails au fur et à mesure. Ils seront alors en mesure de glisser progressivement vers l’avant sur les supports, créant littéralement le pont tout en traversant le canal.
Un centre d’accueil où les personnes qui voudront l’évolution des robots devrait être ouvert au public en Septembre, mais l’emplacement exact du pont est encore à confirmer.
le Lighting Solutions Awards est un concours réputé organisé chaque année (pour la 6e fois cette année) et présente ici les 21 finalistes... Solutions esthétiques et durables ... plein d'inspirations en vue. (FAAST).
Courtesy of LAMP Lighting
LAMP Lighting has revealed its top picks for this year’s Lamp Lighting Solutions Awards. Now in their 6th year, the awards recognize projects that effectively explore the intersections of architecture, interior design, and landscaping with original, innovative, andsustainablelighting. With record internationalization, this year’s awards received 598 submitted projects from 54 countries worldwide.
The Lamp Lighting Solutions Awards span the categories of Architectural Outdoor Lighting, Indoor Lighting, Urban and Landscape Lighting, and Students Proposals. Winners will be announced at a ceremony in Barcelona in June, and will receive monetary prizes between € 2,000 and € 8,000. Additionally, one professional will receive the “Life of Light” award for committing his or her career to lighting.
Light of Ancestral Seas / Valle Medina (ETH Zurich, Switzerland)
Light of Ancestral Seas / Valle Medina. Image Courtesy of LAMP Lighting
Lighting Umbrella / Lee Jin Wook, Lee Eun Ji, Kim Dong Jun, Bang Jae Woong and Yang In Yeong, (Inje University, Republic of Korea)
Lighting Umbrella / Lee Jin Wook, Lee Eun Ji, Kim Dong Jun, Bang Jae Woong and Yang In Yeong. Image Courtesy of LAMP Lighting
Pow Light [Myliobatidae Light] / Arash Abbaszadeh (Islamic Azad University Bandar Abbas Branch, Islamic Republic of Iran)
Body Fabric Light / Neal Qiongyu Li and Daichi Yamashita (University of British Columbia, Canada)
Body Fabric Light / Neal Qiongyu Li. Image Courtesy of LAMP Lighting
The reflection of daylight / Ewa Krysa and Natalia Lenczyk (Politechnika Rzeszowska im. Ignacego Łukasiewicza, Poland)
The reflection of daylight / Ewa Krysa and Natalia Lenczyk. Image Courtesy of LAMP LightingCite:Giermann, Holly. "21 Finalists Named for 2015 LAMP Lighting Solutions Awards" 30 Apr 2015. ArchDaily. Accessed 26 May 2015. <http://www.archdaily.com/?p=625863>30APR2015 by Holly Giermann
Derrière IKEA se cache un job réalisé par le bureau IDEO en collaboration avec des étudiants de la polytechnique de Eindhoven. Quelques principes de base :
- Moins de stockage et plus d'aliments frais à manger (via des drones ou un retour au marché local journalier). Cela peut paraître dingue, mais le concept de cogénération pour le chauffage est identique pour un frigo ... C'est plus efficace de tout refroidir au même endroit que si chacun a un frigo dans sa maison.
- Tous les aliments n'ont pas besoin d'être à une température de frigo habituel.
- Des technologies connues depuis longtemps (pots en argile, etc.) avec de nouvelles technologies (inductions qui seraient réversibles (?) froid / chaud)
- La pénurie d'eau qui devrait arriver va nous faire manger moins de viande...
(FAAST).
From bio-refrigerators that cool food with gel to zero-energy clay alternatives, we see a lot of designs that look to make one of the home’s most energy-hungry appliances more efficient. But in Ikea’s Concept Kitchen 2025 installation at the Milan Design Fair, the Swedish furniture giant goes one step further, and suggests that 10 years from now we might forgo fridges entirely in favor of a “modern pantry” that keeps food cool using a combination of smart technology and traditional methods, with an open display to cut down on waste.
The Concept Kitchen 2025 is the result of a collaboration between Ikea, design firm IDEO, and students from Lund University and Eindhoven University of Technology. The overall project seeks to explore our changing relationship with food; specifically “how we’ll be growing our food, storing it; how we’ll be cooking, eating, living and working in the kitchen.”
The concept doesn’t suggest we do away with cooling entirely—where dairy, meat and fish are concerned, storing food at room temperature isn’t entirely prudent. But they do suggest a few substantial shifts that could make the refrigerator redundant; among them, the possibility that autonomous delivery systems (ie., drones), could mean the end of the weekly shop—meaning we store less and eat more fresh food. It might sound a tiny bit fanciful, but admittedly a highly convenient alternative to trekking to the farmers market every day. They also predict that as water shortages continue, we’ll be eating less meat, reducing the need for energy-hungry refrigeration.
As an alternative to the fridge, Ikea and the students propose a “modern pantry” which features “wooden shelves that contain hidden sensors and smart induction cooling technology.” Double-walled glass containers with a magnetic, stainless steel-gadoliminium alloy base would be wirelessly cooled by the shelves, and could then be used to store more perishable items. This alloy base could then switch to heating when placed on an induction stove, and a porcelain inset (which helps keep the food cool on the shelf) could be detached for use as a plate.
Traditional methods would also be utilized, such as naturally cool terracotta pots to store items such as garlic and potatoes. Eggs, fruit and vegetables meanwhile would stored visibly and at counter level, so as to reduce over-buying and waste.
There’s a lot of other great ideas in the Concept Kitchen 2025, including gray water systems for the kitchen sink and a kitchen table the serves as “preparation surface, hob, dining table, work bench and children’s play area,” with built in sensors to provide guidance in cooking and make us “more confident cooks.” While the Concept Kitchen is very much just that—a concept—it’s understood that Ikea will take inspiration from the designs in future.
Une église (ou en tout cas, une sculpture d'église, par l'architecte Gijs Van Vaerenbergh, en Belgique. Personnellement assez fan du concept. Du moins pour une partie de bâtiment ou une entrée d'un bâtiment tertiaire ... du boulot en parametrical design ?
(FAAST)
Les architectes qui ont dessiné cette église ont réussi à créer un monument unique et magique. Une véritable œuvre d’art qui se transforme en fonction de l’angle de vue de celui qui la regarde.
Cette église se situe en Belgique, dans la campagne de Looz, et elle a été conçue par le groupe d’architectes « Gijs Van Vaerenbergh ».
Vue du dessus cette église semble tout à fait banale.
Vue de face elle devient presque invisible.
Cette création nommée «Lire entre les lignes » est composée de 100 couches d’acier empilées et décalées à égale distance. Une technique qui permet de créer des alternances de vides et de pleins qui donnent une vision différente du bâtiment en fonction de l’angle de vue.
Vue sous certains angles, la structure joue avec notre esprit.
Tantôt « pleine » et « normale », parfois ajourée, presque transparente ou comme coupée en deux ce bijoux d’architecture offre une vision poétique, épurée et tellement féérique… Un travail tout droit sorti de l’imaginaire !
Vue de l’intérieur on comprend mieux la façon dont la structure a été pensée.
Bon, on ne verrait peut-être pas sa propre maison comme ça, mais pour le coup… c’est impressionnant, non ?
Une réflexion pas bête sur le "active design", chemin de pensée d'architectes et de designers pour pousser les gens naturellement à se mouvoir sainement dans les espaces (exemple classique de l'escalier glauque à côté du bel ascenseur à proscrire).
Plus d'informations sur, évidemment, au Center Active Design of NYC.
(FAAST)
Design influences our health and quality of life, for better or worse and in ways we might not even realize. These are six inspiring examples of the best.
Ever walk into the a building and the stairwell is so dark and dingy, that you decide to take the elevator, even if you’re only going up one flight?
That’s one very basic way that building design influences our health and fitness. The emerging concept of "active design" aims to push people in the right direction by getting architects, designers, and urban planners thinking about the major role their work plays in getting people to lead healthier lives.
In New York City, the Center for Active Design—established by public health policy guru and former mayor Michael Bloomberg—is working to formalize and popularize principles that guide this kind of thinking. In its second annual excellence awards, its outside jury panel chose six exemplary "active designs" that were built or published in the last year and included at least one of four approaches: active transportation, active recreation, active building, or healthy food access.
In 1999, this Spanish city became an early adopter of active design, setting the goal of transforming itself to support walking and cycling rather than driving. Its community-driven master plan put people and public spaces first—widening sidewalks, improving street lighting and adding 400,000 trees. Today, 81% of schoolchildren walk to school, half of them on their own. From 1996 to 2014, traffic downtown has dropped 70% and 30% in the city overall. There have been zero traffic fatalities in eleven years. The judges called it a "great precedent" for other communities.
Guthrie Green, Tulsa, Oklahoma
This 2.7-acre park serves as a social and cultural hub in a city with some of the worst obesity and life expectancy rates in the nation. The design converted a former truck yard into a gathering venue, with gardens, a central lawn, an outdoor stage, and "interactive" fountains. A foundation provides support for activities like year-round fitness classes, bike races, and farmers markets. The judges laud the design for "addressing health and equity issues in a state with high rates of obesity."
New Settlement Community Campus, Bronx, New York
This campus started with a push for a public swimming pool but extended far beyond that to address overcrowded schools and poor community services. The campus, complete with rooftop garden, cooking classes, and outdoor playgrounds, now brings together activities once located separately in nearby affordable housing facilities and serves a neighborhood with 1,160 K-12 students. The judges say the design works because it shows that "health and community are visible and valued."
Casitas de Colores, Albuquerque, New Mexico
This "holistic housing project" brought needed affordable living spaces to downtown Albuquerque and has been recognized for making walking a more visible part of city living. With open, wide stairwells, terraces, and patios that provide community facilities and offer views and colorful and inviting walking paths, the project "not only addressed active design but also spurred economic development downtown, leading to the opening of a new grocery story," say the judges.
Queens Plaza, Long Island City, New York
Before its redesign, Queens Plaza was a mess—a parking lot surrounded by 16 lanes of traffic and several loud subway lines. These days, it is "a space that prioritizes the pedestrian." The multi-agency project created new crosswalks, bike lanes, sidewalks, seating, trees, and public art. Landscaping helps improve the air and tamp down the noise. Bicycle traffic is up 12%, with more than 3,400 people using the route daily, and walking rates have doubled.
Stanford Healthy Neighborhood Discovery Tool, United States, Mexico, and Israel
This is a little different from all the designs above. It’s a research project that is supposed to give citizens a louder voice in policy decisions that affect the build environment around them. The app allows citizen scientists to assess their neighborhoods using geo-coded photos, audio narratives, and GPS walking routes, and surveys. The app has been used in three countries so far. The judges says it is a "big step towards broader community engagement."
Suite à un récent séminaire organisé par l'ISSEP, je me suis dit qu'il serait nécessaire de faire le point sur ces technologies nouvelles et ouvrant un certain champ d'application.
Si le séminaire en question répondait davantage à la question de la sécurité face à ces produits (par exemple, le risque d'explosion de certaines nano particules), j'ai fait quelques recherches sur l'application que l'on peut déjà rencontrer dans le secteur du bâtiment.
Nanoparticules : définition, et avantages.
Une particule est considérée comme étant une nanoparticule à partir du moment où ses dimensions (ou une de ses dimensions) est inférieure à 100 Nanomètres.
source : "les nanos, définitions, notions de base et normes" Ir J. Lecomte - SIRRIS.
Soit 1 milliardième de mètre, ou un millième de millimètre.
Il est effectivement possible que l'ensemble des dimensions de la particule ne soient pas toutes de l'ordre nanoscopique, c'est là que l'on retrouvera les expressions de nanopoudres (3 dimensions nanométriques), nanotubes (2 dimensions nanométriques) ou de nanotuiles (1 dimension nanométrique)
Alors, pourquoi utiliser les nanoparticules ?
Parce que cela modifie les aspects physiques. En effet, il y aura plus de particules en surface, plus de joints et les réactions s'apparenteront davantage aux réactions cantiques que de physique classique.
La surface d'un matériau devient donc une dimension à part entière, réagissant particulièrement.
Les quantités sont souvent réduites, possibilité dans certaines conditions d'atteindre une transparence tout en gardant certaines propriétés.
Quels sont les dangers des nanoparticules ?
Il est difficile de prédire avec certitude la réaction entre les nanoparticules et leur support.
La technologie est encore neuve, les risques d'inflammation et d'explosion sont différents que pour le produit de base (non nano par exemple)
Nanoparticules : applications dans le bâtiment aujourd'hui.
- l'aérogel, composé de nanoparticules de silice, séparées par des nanopores. Son avantage est qu'il est super isolant avec un lambda de 0,0055 W/mK (soit pratiquement 10 plus isolant qu'une laine minérale... 3 cm suffiraient pour un bâtiment passif). C'est cher, pas simple à mettre en oeuvre, mais dans certains cas... Un exemple : Thermabloc. Cela pourrait tout à fait convenir pour des passages difficiles en rénovation, des jonctions, etc.
Dans le cas présent, une bande collée sur des structures de cloison métalliques pour couper les ponts thermiques.
- Le vitrage avancé, qui permet une diffusion de la lumière et s'adapte (voir ce site). Avantage : la transmission lumineuse peut évoluer en fonction de l'ensoleillement. Le vitrage est super isolant (U = 0,31 soit deux fois plus performant qu'un triple vitrage).
Ces vitrages ont déjà été placés à New York notamment sur l'immeuble à appartement des architectes Gerner Kronick + Valcarel en 2012 (c'était les premiers).
d'autres exemples plus 'légers' architecturalement :
La Detroit School of Art - Hamilton Anderson Association
Joggins Fossil Cliff Museum - WHW Architects.
National Circus School of Montreal - Lapointe Magne et Associés.
- Cellules photovoltaïques. Elles sont encore peu développées et coûteuses, mais offrent différents intérêts (meilleure performance, transparence, etc.). La société SOLARME serait cependant à contacter ... ses produits ont l'air intéressant.
- Des revêtements invisibles, permettant de protéger le bâtiment. Par exemple : NanoSTONE de chez Nanoprotect. D'après leur fiche, ce produit protège contre les efflorescences, les graffitis, les dégâts dus aux cycles de gel-dégel, etc.
Existe aussi, des produits "autonettoyants" pour vitrages, qui se placent après la pose... (bon à savoir).
Possibilité également de rendre 'RF' des éléments qui ne le sont pas par un coating approprié. C'est à discuter évidemment avec les pompiers, mais cela exste.
voir les vidéos assez impressionnantes ci-dessous qui proviennent du fabricant Percenta AG :
Et si vous avez 8 minutes pour la passion du traitement de surface :
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