ABSTRACT

          The use of fossil fuels as the main source of energy for most countries has caused several negative environmental impacts such as global warming and air pollution. By burning fossil fuels large amounts of greenhouse gasses are released which highly contributes to global warming (Florida Martins et al. 2019). On the contrary, wind is a renewable energy source that has fewer negative environmental consequences making it more sustainable compared to other sources of energy. It is less expensive, reliable and convenient. As a result, the researchers were motivated to develop Project Amihan: A Newly Designed Dual Axis Vertical Wind Turbine.

 

          This micro-scale wind turbine has the capability to extract energy from both horizontal and vertical wind direction. It was created in order to overcome problems such as noise and inefficient energy output of traditional vertical axis wind turbines, especially those that are poorly adopted in urban environments. This prototype device consists of four main parts: dynamo generator, shaft, electric fan propeller and ceramic balls cut into half.

 

          The horizontal and vertical minimum cut-in wind speed were tested. The resulting mean of the horizontal minimum cut-in wind speed of Project Amihan was 2.36 m/s whereas the resulting mean of vertical minimum-cut-in wind speed was 2.43 m/s. The computed T-Value is -0.49, critical value of 3.18, hence the null hypothesis has been accepted. The three respective average wind speed and average energy output resulted in 0.97 output for the Correlation Coefficient / Pearson R. This resulted in rejecting the null hypothesis having a very high relationship. The  Pearson Correlation Test for the Significant Relationship between the Average Vertical Wind Speed and Energy Output of Project Amihan resulted in 0.98 for the correlation coefficient/ Pearson R. Having to reject the null hypothesis that gives off a very high relationship. All in all, the results of the study shows that Project Amihan’s prototype was functioning effectively even under low wind speed of an average 2.5 m/s and producing sufficient energy output for both horizontal and vertical axis.