Title:        Rain Facade
        4 month
Tools:        Brainstorming, Rhinoceros, Keyshot, Photoshop, 3D Printer, Laser Cutter,  Illustrator,
                     Photoshop, Paper Prototyping, Concept Development
Team:       -
Task:         Saving And Recycling Water

Faculty:  Prof. Peter Eckart





Project Description
Water is a valuable resource, as its availability is limited, especially with rising urbanisation. For this reason the main challenge of this project was to save water by recycling it and communicating its function in a way, that it would make observers think about it and reflect on their own consumption of water. Aim of this project is not only to save water by collecting and filtering rain water, but also to create and stimulate a greater awareness of water usage among all pedestrians.

Rain water can by German law replace up to 50% of the water being use in the household on a daily basis. RAIN FACADE uses the potential of the building's facades as the biggest possible surface to collect rain water.

The recycling circuit works in the following way:
1. Rain falls
2. Rain is collected in a catchment
3. The water gets filtered in a cistern in the ground
4. Filtered water is pumped into the office building
5. Filtered water is distributed
6. Water is reused for cleaning, watering, the washing machine and flushing the toilet

The Process
As I knew I wanted to work from a bigger scaled approach towards this task I started brainstorming around the words  "water", "material", "facade" and "form" right away. This approach allowed me to think about the bigger urban context I wanted to work in, as well as possible directions and speculation around the future scenario this would take place in. 
Facades as well as roofs grasped my attention, which lead me through various repetitions of sketching processes and low fidelity prototypes. A variety of concepts have been created from complex shapes and mechanisms  to very minimalistic solutions. 

The Water Flow
The collected water is carefully transferred from one module to the next in a downwelling way. This playful view does not only transport the water to the bottom of the building towards a cistern but also communicates the amount of water being collected to pedestrians viewing the facade. As the collected rain drops turn into a water flow as the drops add up, the actual dimension of how much water can be saved gets clear.

How The Whole System Works
1. Composed modules collect rain and turn the rain drops into a water flow
2. Downwelling the collected water from one module to the next
3. Collect rain water in a catchment basin
4. Transfer the rain water to a cistern
5. Filtered rain water can be reused in the household
6. Pump the filtered water back into the building