Design of Direct and Indirect Wind Energy Harvest Systems

-Developing wind energy by using wind collector and
electroactive materials are proposed and investigated in this
article. Two systems will be considered to harvest energy:
direct and indirect system. In direct system, wind induced
drag force directly blow and vibrate the electroactive
materials in the duct for generating electricity. Wind flowguided
mechanism is designed to collect arbitrarily blowing
wind in environment and guide the flow direction
perpendicular to the cross section of the nozzle as much as
possible so that more uniform velocity distribution profile is
achieved. Nozzle accelerator is designed for the purpose of
increasing wind velocity. Indirect system uses gear as
additional mechanism to impact and vibrate the electroactive
materials. Two types of indirect system integrating the wind
collector with fan and roof turbine ventilator to impact and
vibrate electroactive materials are proposed.