Wednesday, February 1, 2017

The end of air conditioning

Ecosistema Urbano's "Air Tree" in Shanghai aims to make the outdoor climate more comfortable, harnessing principle of bioclimatic architecture such as natural air flow and orientation.Asia architects use green solutions to cool buildings

Going back to basics

Since that first project, Gallavardin has built several luxury bioclimatic hotels in Cambodia and Myanmar, a concept restaurant in Ho Chi Minh City, and even his own green office for the T3 team.

Other architects are also experimenting with this style of building.
In Indonesia, Andyrahman Architect's Biophilic Boarding House was shortlisted in the World Architecture Festival's Building of the Year 2016 competition, praised for its perforated walls that help the building stay cool in tropical Surabaya, a congested port city in East Java.
In China, American architecture firm Perkins & Will took a bioclimatic approach to the new Shanghai Natural History Museum -- while the building provides air-conditioning in gallery areas to protect the artwork from humidity, it also has automated windows and skylights to naturally ventilate public areas.
The museum saves 15% on energy consumption compared to a standard-design museum.
Nothing new
Of course, bioclimatic buildings are nothing new.
Before the 20th century, bioclimatic architecture was the norm, and it's still visible today in vernacular buildings from Spanish haciendas to traditional Chinese village homes.
Could this smog-eating tower solve China's pollution problem?
Could this smog-eating tower end pollution in China?
But with the invention of AC in 1902, by Willis Haviland Carrier, in the United States, bioclimatic solutions fell out of favor. Today, heating and cooling systems account for 40% of global building energy consumption, according to the International Energy Agency (IAE), which predicts that by 80% of air-conditioning demand will come from Asia by 2050.
"In (rural areas) of South and Southeast Asia, air-conditioning is not the norm -- but it is becoming more common in city centers, contributing to high energy consumption," Marlyne Sahakian, a research associate at the Faculty of Geosciences and the Environment at the University of Lausanne in Switzerland, who penned "Keeping Cool in Southeast Asia", tells CNN.
"In the Philippines, there was a strong 'West is best' trend, with architecture styles mimicking models from the north western hemisphere, which were not appropriate for the local climate," she adds, citing the "glass tower" model.
Breath of fresh air
Overall, Gallavardin says, Asia has been slow to embrace environmentally friendly building methods.
"What I see in Asia, even in rich countries like Hong Kong or Singapore, is that they love 'green washing.' They put trees on the facade, add solar panels and call it a green building.
"But when you look a bit closer, it's not really that green -- sometimes it's the opposite. We will see more truly energy-efficient buildings in Asia in the future, but it's very slow still."



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