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

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Abstract

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.

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Abbreviations

MWT:

Micro Wind Turbine

EFCMWT:

Exhaust Fan Cum Micro Wind Turbine

GW:

Giga Watt

HWAT:

Horizontal Axis Wind Turbine

VAWT:

Vertical Axis Wind Turbine

MNRE:

Ministry of New and Renewable Energy

KE:

Kinetic Energy

BEM:

Blade Element Momentum

AC:

Alternating Current

DC:

Direct Current

mm:

Millimetre

KW:

Kilowatt

m/s:

Metre Per Second

M :

Mass of the Wind

\(v\) :

Velocity of the Wind

P w :

Wind Power

V :

Voltage

I :

Current

C P :

Power Coefficient

P T :

Turbine Power

A :

Swept Area of the Blade

\(\theta \) :

Pitch Angel

\(\phi \) :

Relative Angle

\(\alpha \) :

Angle of Attack

\({a}{\prime}\) :

Angular Induction Factor

\(a\) :

Axial Induction Factor

F :

Prandtl Tip Loss Correction Factor

\({\sigma }{\prime}\) :

Represent the Local Solidity

\({\lambda }_{\upgamma }\) :

Local Tip Speed Ratio

F L :

Lift Force

F N :

Trust Force

F D :

Drag Force

F T :

Tangential Force

u rel :

Relative Wind Speed

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Acknowledgements

We would like to thank National Institute of Technology Patna, Bihar (800005), India, for allowing this study to be undertaken.

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  1. Department of Mechanical Engineering, National Institute of Technology, Patna, 800005, India

    Nitin Kumar & Om Prakash

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  1. Nitin Kumar
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Kumar, N., Prakash, O. Fabrication of Exhaust Fan Cum Micro Wind Turbine and Its Performance Analysis in High-Rise Building Window. MAPAN (2024). https://doi.org/10.1007/s12647-024-00746-1

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