Human Powered Water Still

The human-powered water still is designed to purify water using mechanical and electrical energy generated by the user. The system consists of a chair with pedals, a chain drive mechanism, a bicycle wheel, a small permanent magnet DC motor, a heating chamber, and a purification chamber.

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When the user operates the pedals, the larger sprocket rotates, driving the smaller sprocket via a chain drive. The smaller sprocket is connected to a bicycle wheel, which starts rotating. The rotating wheel meshes with the small permanent magnet DC motor, converting mechanical energy into electrical energy. As the motor's shaft rotates, it cuts the magnetic flux of the permanent magnet, generating an induced current in a conductor. This current is passed to a heating element located in a heating chamber.

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The unclean water to be purified is stored in a reservoir and is gradually passed through a branch pipe connected to the heating chamber. The branch pipe, fitted with elbows and fittings, runs along the outside of the main body. A small ball valve regulates the flow of water into the heating chamber.

Inside the heating chamber, the water undergoes purification through the heating process. The heating coil, powered by the electrical energy, boils the water. The boiling action effectively purifies the water for drinking.

As the water boils, steam is generated and rises upwards. The steam then cools down upon striking a cone-shaped part, condensing into purified water droplets. These droplets collect at the tip of the cone, eventually dripping down a steel pipe. Inside the steel pipe, the water's temperature further decreases, making it completely ready for consumption. The purified water is collected in a water collection chamber, from where it can be used for drinking.

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Overall, the human-powered water still utilizes mechanical and electrical energy to heat and purify water, providing a sustainable and accessible method for obtaining safe drinking water.