The present application belongs to the technical field of
green building, and particularly relates to a passive energy-saving building facade chord wave guide flow outer envelope
system, which comprises an outer facade
assembly, including chord wave guide flow mechanisms and an outer
curtain wall arranged alternately from top to bottom, the chord wave guide flow mechanism is in a wave-shaped
ridge structure and has a containing cavity inside; a wind
turbine is installed in the containing cavity; wherein a gas collecting port is arranged at the upper top
surface wave trough and / or the lower bottom
surface wave peak of the chord wave guide flow mechanism, and a gas permeable hole is arranged on the outer surface. The present application can converge, guide and
discharge natural
wind field, improve the wind energy capture efficiency, can adapt to different direction air flow, hide the installation of the wind
turbine, does not affect the building facade effect, can be arranged flexibly, can adapt to complex and changeable
wind direction conditions, improves the stability and reliability of wind energy utilization, and can also continuously generate air flow power in windless weather, effectively makes up the problem of insufficient
wind power, and ensures the continuity and stability of
building energy supply.