International Journal of Sustainable and Green Energy
Volume 9, Issue 1, March 2020, Pages: 16-22
Received: Mar. 15, 2020;
Accepted: Mar. 30, 2020;
Published: Apr. 13, 2020
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Fiona Mercy Akello, African Railway Center of Excellence, Addis Ababa Institute of Technology, Addis Ababa University, Addis Ababa, Ethiopia; Mechanical Engineering Department, Kyambogo University, Kampala, Uganda
Lucky Ugochukwu Adoh, African Railway Center of Excellence, Addis Ababa Institute of Technology, Addis Ababa University, Addis Ababa, Ethiopia; Department of Mechanical Engineering, Federal University of Technology, Akure, Ondo State, Nigeria
Ethiopia has a small percentage of its population accessing electricity with some power utilized by its transportation sector; there are frequent power outages that slow down economic activities such as trade and railway transportation. From this previous statement, it is clear that the demand for energy is significantly increasing and there is too much dependability on the current energy source. With the development of sustainable energy technology in the world today, this problem can be alleviated, while utilizing component vibration in railway infrastructure. The aim of this study was to estimate energy generation potential from the vibration of a railway track induced by a passing train using a two degree of freedom oscillator. Data was collected; energy harvesting system was modeled and simulated. Based on the result, the system produces enough energy to power communication and signaling equipment on the track. The optimum parameters: mass of 1 kg, a spring stiffness of 6 N/m and a damping coefficient of 4 Ns/m of the energy harvester were determined using sensitivity analysis. The cumulative mechanical power harvested by the inter-city-125 train at a speed of 195 km/h was calculated to be 224.56 W. Therefore, the energy demand of the communication and signaling equipment of the train track can be achieved using vibration energy harvesting system by installing the number that meets the demand.
Fiona Mercy Akello,
Lucky Ugochukwu Adoh,
Simulation of Power Generation from Vibration of Railway Track, International Journal of Sustainable and Green Energy.
Vol. 9, No. 1,
2020, pp. 16-22.
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