Electricity generation from rainwater harvesting system for urban area

Wong, Jia Xin (2021) Electricity generation from rainwater harvesting system for urban area. Project Report. Universiti Teknikal Malaysia Melaka, Melaka, Malaysia. (Submitted)

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Abstract

Electricity plays an important role in our modern daily lives on everywhere and every time. However, electricity access to the urban population was found to be insignificant reflecting that electricity is not always available when it is needed in the urban areas. Some of the urban citizens are even cannot afford the extreme electricity cost bill. The demand for electrical energy is also increasing rapidly in every country in the world and thus the increasing depletion of fossil fuel had led to a concern action for example replacement of renewable energy. Malaysia is a tropical country that enjoyed tropical weather year-round and somehow interspersed with tropical rain showers. Thus, our country is suitable on implemented hydro renewable energy to replace fossil fuels. This study aimed to develop a Rainwater Harvesting System (RHS) to generate electricity and analyze the performance of output power. The RHS used the principle of hydropower technology, which is more cost affordable and easy implemented for beginners than other renewable power technology. There are two main parts consisted in the RHS which are mechanical and electrical parts. The generator generates output energy using the flowing rainwater collected from the rooftop. The rainwater is then flowed through the pipe and the turbine is rotated to generate electricity. In this project, a micro-hydro generator is used to generate electricity and a water flow sensor meter is used to measure the flow rate of water. The performance of output power is analyzed by using different head meters and flow rates of water. The result of the project showed that the experimental output power is nearly the same as the calculated output power. However, the experimental result in high-speed water is more efficiency compared with low-speed water. This is due to the higher the head meter will increase the water pressure and thus the output generated power produced will become higher. RHS is very beneficial to us and has become increasingly popular to be used in every country to enhance the depletion problem of fossil fuel and the increasing cost of electricity.

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