Development of micro air flow generator for electrical charging system

This paper presents the development of micro air flow generator from motorcycle exhaust system. The project is used to utilize the air flow from exhaust in order to generate electrical energy. The kinetic energy from the air flow can be used to turn a turbine. From the turbine shaft, it then will rotate the rotor of a DC motor. The rotation of the rotor having a winding will cut the magnetic field created by the permanent magnet (stator); the electricity then will be produced. This generated electricity is delivered to the rechargeable battery for storage. From the storage, the energy can be used for other purposes such as charging a hand phone. The prototype has been developed and open-circuit and closed-circuit tests have been carried out. The results show that the generator is able to produce electricity and charge electrical appliances such as hand- phone.