Solar Powered Fontus Captures Water From The Air When You Ride


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Categories: Tech
Fontus is a self-filling water bottle for your bicycle. This device collects the moisture contained in the air, condenses it and stores it as safe drinking water. Powered by solar cells, it can harvest up to 0.5 l water in an hour´s time under the right climatic conditions.

 

The Inspiration

According to UN statistics, More than 2 billion people in more than 40 countries live in regions with water scarcity. In 2030, 47% of the world´s population will be living in areas of high water stress. Water scarcity may be the most underestimated resource issue facing the world today. Every measure to ease this upcoming crisis is a welcome one.

Harvesting water from the air is a method that has been practised for more than 2000 years in certain cultures mostly in Asia and Central America. The Earth’s atmosphere contains around 13.000 km3 of mostly unexploited freshwater. This project is an attempt to discover these resources.

My goal was to create a small, compact and self-sufficient device able to absorb humid air, separate water molecules from air molecules and store water in liquid form in a bottle.

Stages of Development

I conducted a series of experiments trying to identify the ideal conditions, materials and cooling systems. I simulated different climatic conditions in my bathroom, modifying the air temperature and humidity. After more than 30 experiments, I finally achieved a constant drop-flow of one drop of condensed water per minute. After developing a functioning inner system, I designed a compact and practical hull which can be easily attached to a bicycle, integrates the water bottle and can be comfortably handled.

The Function

Fontus can be applied in two different areas. Firstly, it may be interpreted as a sporty bicycle accessory. Useful on long bike tours, the constant search for freshwater sources such as rivers and gas stations can cease to be an issue since the bottle automatically fills itself up.


Secondly, it might be a clever way of acquiring freshwater in regions of the world where groundwater is scarce but air humidity is high. Experiments suggest that the bottle could harvest around 0,5l water in one hour's time in regions with high temperature and humidity values.

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