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- Title
Rainwater Energy Harvesting Using Micro-Turbines in Downpipes.
- Authors
Carter, Josie; Rahmani, Amin; Dibaj, Mahdieh; Akrami, Mohammad
- Abstract
Renewable energy sources are rapidly increasing in demand and importance as governments and countries around the globe begin to understand their vital role in reducing climate change. This project aimed to design and create an optimised micro-hydro turbine system for downpipes to harness the currently untapped potential energy from rainwater. Experimental methods were used to determine the magnitude of voltage output available at different rainfall intensities by simulating such flow rates on a hydraulic bench. The viability of this energy to power household appliances was then evaluated, and methods of increasing the voltage output were assessed, such as layering the turbines in a single downpipe or placing multiple downpipes around the building. The study determined that, during average rainfall in the UK, a single turbine could produce a maximum of 7.21 V of DC voltage, or 50.49 V during heavy rainfall—enough energy to power a mobile device charger or a vacuum cleaner, respectively. Therefore, this proves a high potential in rainwater energy harvesting as a renewable energy source. It was also concluded that a positive correlation occurred for both the number of turbines in a downpipe and the number of pipes around the building with the voltage output of the whole system.
- Subjects
UNITED Kingdom; ENERGY harvesting; WATER harvesting; RENEWABLE energy sources; ENERGY consumption; RAIN gauges; BATTERY chargers; POTENTIAL energy; VACUUM cleaners
- Publication
Energies (19961073), 2023, Vol 16, Issue 4, p1660
- ISSN
1996-1073
- Publication type
Article
- DOI
10.3390/en16041660