For a long time, heat insulation was en vogue – and nearly no one was concerned about poor indoor air quality. And yet excess CO2 hampers concentration. Now, researchers have come up with an intelligent door seal system.
Heated debates and no agreement in sight: the eight employees sitting in a small conference room have come together to get an important project moving. But after an hour, some of them have trouble focusing on the discussion, and some are even beginning to become drowsy. No wonder: the air in the conference room is stuffy and stale, and increased levels of carbon dioxide (CO2) are making them tired and robbing meeting participants of their concentration.
There’s only one solution: air the room out. Or else rely on the intelligent door seal system that has now been developed by researchers at the Fraunhofer Institute for Microelectronic Circuits and Systems IMS in cooperation with the Athmer Company. Users of the system not only spare themselves the effort of regular airing: the door seal is also cold air’s worst enemy, insulating to provide a perfect indoor climate.
Indoor concentrations of CO2 are still a problem, particularly in newer buildings. “Modern buildings are becoming increasingly airtight,” according to Hans-Jürgen Schliepkorte, group manager at Fraunhofer IMS in Duisburg. On the one hand, better windows and construction materials provide effective insulation – an issue that was long a major concern. But air quality was overlooked in the process. “In many cases, the supply of fresh air still comes through an open window,” Schliepkorte points out. “This has consequences for the energy efficiency.”
Read more at: Phys.org