This Table Sucks Up Heat to Lower Your AC Bills

Air Conditioning is a modern wonder. It’s also an expensive luxury and a total drain on the environment. Most buildings address thermal control on a structure level by building in HVAC systems, but two designers from Paris think there might be a better way, or at least an alternative way.

“We wanted to see if it was possible to address climate and energy issues on a furniture scale,” says designer Jean-Sébastien Lagrange. The designer, along with architect and engineer Raphaël Ménard, developed the first piece in their Zero Energy Furniture line: a table that can store excess heat and release it when a room gets cold again.


This table has a very high thermal inertia, despite its sharpness. The secret lies into innovative use of phase-change materials (PCM), integrated between the surface of plain wood and the folded sheet of anodized aluminum. The waved geometry of the conductive aluminum fosters thermal exchanges between the room and the PCMs located inside the Climatic Table. The folds of the light-weight sheet of aluminum give also an excellent structural rigidity and carrying strength. Thus, the plateau might have a very large span.

At first glance, the Zero Energy table looks like an ordinary wood conference table, but hidden underneath the slab of oak is a sandwich of materials that turns the table into a thermal sponge of sorts. Between a layer of corrugated aluminum is a waxy phase-changing material that softens when the room reaches about 71 degrees Fahrenheit.


This isn’t an entirely new concept—phase-changing materials have long been known for their ability to store and release energy like heat. Lagrange and Ménard simply harnessed this science and embedded it into a compelling industrial design, which they hope to begin selling later this year.

The duo says under optimal conditions—a small conference room fit for around 15 people—the table is able to reduce up to 30 percent of the energy consumed by air conditioning. Of course, the table is rendered pointless if the room never breaks 71 degrees, so it helps if the temperature range is expansive.

Still, it’s a interesting idea, particularly when you consider the cost and energy savings it could produce during a building’s off hours. Instead of turning on the heat overnight, a building could use the heat stored in the table throughout the day. The team is looking to incorporate the same principle in lighting design, where it would be easier to harness excess heat, but they have plans to build it into all sorts of home goods.

Source: Off Grid Insights


One Comment

Add a Comment

Your email address will not be published. Required fields are marked *