Experimental Investigation of Energy Recovery from Industrial Exhaust Fan Airflow

Author(s)	Mr. Amar Manoj Bothade, Mr. Jishan Firoj Khan, Ms. Pratiksha Raju Khamankar, Mr. Anand Shankar Sigurlawar, Prof. Chaitanya Kuntaleshwar Turwile
Country	India
Abstract	Industrial exhaust fans are widely used in factories, warehouses, and commercial buildings for ventilation and removal of heat and harmful gases. These exhaust fans continuously discharge high-velocity air into the atmosphere. The kinetic energy present in this airflow is generally wasted and remains unutilized. This paper presents an experimental study on generating electrical power by utilizing waste airflow from industrial exhaust fans. In the proposed system, the exhaust air is directed through a duct to drive a horizontal axis micro wind turbine coupled with a DC generator. The generated electrical power is regulated using a charge controller and stored in a battery. The stored energy can be used for low-power applications through an inverter. The system is economical, eco-friendly, and easy to install without disturbing existing industrial setups. Experimental observations confirm that usable electrical power can be generated from exhaust fan airflow, making this method a promising solution for energy recovery and conservation in industrial environments.
Keywords	Exhaust fan, Waste energy recovery, Micro wind turbine, Renewable energy, Industrial airflow
Field	Physics > Electric
Published In	Volume 8, Issue 1, January-February 2026
Published On	2026-01-19
DOI	https://doi.org/10.36948/ijfmr.2026.v08i01.66809

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