Fabrication of Exhaust Fan Cum Micro Wind Turbine and Its Performance Analysis in High-Rise Building Window

As a consequence of the exponential increase in energy usage within urban areas, rooftop micro wind turbines have surfaced as a potent method to supply sustainable energy while also strategically mitigating the environmental impact of carbon emissions. However, significant knowledge gaps exist regarding how to install a rooftop micro wind turbine in conjunction with an exhaust fan in a tall building. The objective of this study is to fabricate an exhaust fan cum micro wind turbine (EFCMWT). It is used as an exhaust fan as well as a micro wind turbine. There are various components of EFCMWT, and their dimensions are also discussed in this article. The main components are one-way bearings and couplings, both of which are used to connect dual shaft AC motors and DC generators. For demonstration research, the EFCMWT was placed at the height of 14.111 m on the windows of Kosi Hostel Building, NIT Patna. When the wind speed is 7 m/s, the wind turbine produces a maximum power output of 1.2167 watts and a maximum power coefficient of 0.1247. An exhaust fan cum micro wind turbine can make a significant contribution to reducing the environmental carbon footprint.