System for recovering energy from exhaust air, in particular from process exhaust air or air conditioning exhaust air and industrial building with such a system

摘要

System for recovering energy from exhaust air with an exhaust duct (16), through which exhaust air is guided, with a fan (20) arranged to drive the exhaust air in the exhaust duct (16), wherein the exhaust duct (16) from a suction point (16) 22) extends to an outlet (24), characterized in that a turbine (26) is provided which converts at least a part of the kinetic energy of the exhaust air into mechanical energy.