Development of a Small scale power generation system using Rooftop Ventilator

The ever ending demand for electrical power has led to widening of electricity demand - supply gap, which has compelled researchers to enhance the power production from Renewable sources of energy like solar, wind etc. trying out every possible ways. Rooftop ventilators (RTV) generally used for ventilation purpose, can be used to extract wind power by suitably designing a generator to couple with it. Rooftop Ventilators do not consume any electrical power for its working. The paper discusses the development of a power generation system using a typical RTV. The paper emphasize on the materials and the construction methodology adopted for developing a Rooftop power producing system. As a test case, the RTV power generation system is designed to charge a battery and power up the LED lighting load connected to it. Experimental results shows that the system could generate a maximum DC voltage of 25V with the ventilator blade speed of 150rpm. This type of Small scale power generation systems are suitable to charge low power loads. An exhaust device which does not consume electrical power for its working is utilized to produce electrical power, thus enhancing the use of green energy for a sustainable tomorrow.