Calvin Rieder

Passive Dual Purpose Condensers to Provide Potable Water

Calvin Rieder, Canada Finalist, 16-18

In this project I have created two systems. The first is a passive atmospheric water condenser to extract water from air. The second is a novel solar still to passively convert non-potable water to potable. Neither system requires external energy or infrastructure. Enhancement techniques cool the condensers to below dewpoint resulting in condensation for up to 12.5 hr and production of water at 212 ml/hr. The solar still is a modular system, consisting of multiple evaporating basins connected to a high capacity condenser. The system converted non-potable water to potable and results indicate it is more efficient than traditional stills.

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