Personalised “bubbles of heat” could
replace inefficient central heating
architect Carlo Ratti claims the heating system he developed with MIT, which uses motion sensors to focus beams of infrared radiation on people as they move through a building, can be “one order of magnitude more efficient” than traditional methods.
“If you think about it, we waste a huge amount of energy to heat up buildings even when they are empty or if there are very few people in there,” says Ratti, whose Local Warming project is on show at Rem Koolhaas’ Elements exhibition at the Venice Architecture Biennale. “The idea was, what about concentrating heat just on people? To create almost like a bubble of heat around ourselves.”
“You create an infrared radiation that can be focussed and concentrated on people,” Ratti explains. “As you move the infrared radiation will move with you. The lamps throw light in a parallel way, and they can rotate and focus on a person and then create a local climate around them.”
The system relies on using motion tracking technology, which can be implemented in a variety of ways. One option, Ratti says, is to use the signals from people’s mobile phones to track their position in a building, which means each person could choose their own temperature settings.
“Our environment is becoming much more responsive, it’s almost talking to us,” he says. “Our interaction with space is changing. It can become more dynamic, more playful and fluid.”