Feasibility Study of Energy Extraction from Wind Pressure of Outdoor Fan of Refrigerator Using Small Scale Wind Turbine: Bangladesh Perspective

Abstract

Mass quantity of population, emission from conventional power plant, and more demand than supply i.e. load shedding encouraged us to search alternative way to fulfill the energy crisis of humankind and reduce greenhouse gas emission. In this paper, we just study the feasibility of energy from outdoor fan of air conditioning system using small wind turbine (rotor radius 0.25-5m), because nowadays air conditioning is the second largest energy consumption device among commercial as well as home appliances in Bangladesh due to climates fluctuation. Moreover, the extracted energy will store in electrochemical device to use this energy during load shedding. It not only helps to reduce tariff but also remove power cut-off tension and replace high price heavy and solar irradiance dependent on-grid rooftop solar system. We measured the outdoor fan’s wind speed using anemometer of various capacities such as 1 to 2 tons’ air conditioners. Later the model’s performance analyzes numerically by MATLAB software. It shows maximum mechanical power 40W at trip speed ratio 8. In addition, cost analysis has done to know economic feasibility.