Inspiration

 

 

 

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The Warka’s water harvesting technique and construction system are inspired by several sources. Many plants and animals have developed unique micro- and nano-scale structural features on their surfaces that enable them to collect water from the air and survive in hostile environments. By studying the Namib beetle’s shell, lotus flower leaves, spider web threads and the integrated fog collection system in cactus, we are identifying specific materials and coatings that can enhance dew condensation and water flow and storage capabilities of the mesh. The termite hives have influenced the design of Warka’s outer shell, its airflow, shape and geometry. We also looked at local cultures and vernacular architecture, incorporating traditional Ethiopian basket-weaving techniques in Warka’s design.

Front View

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Top View

 

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Master Plan

 

 

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How it Functions

 

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Warka Water relies only on natural phenomena such us gravity, condensation & evaporation and doesn’t require electrical power. It is a vertical structure designed to harvest potable water from the atmosphere (it collects rain, harvests fog and dew). Warka Water is designed to be owned and operated by the villagers, a key factor that will facilitate the success of the project. The tower not only provides a fundamental resource for life – water – but also creates a social place for the community, where people can gather under the shade of its canopy for education and public meetings.

 

Characteristics

 

 

Below are the key details of Warka Water 3.2 :
Daily water collection: 13 to 26 gallons (50 to 100 L), annual average.
Water tank storage: 800 gallons (3000 L).
Construction: 10 days, 10 people (by hand, no electrical power machinery required).
Assembly: 2 hours, 10 people.
Weight: 176 pounds (80 kg).
Materials: Bamboo, hemp, metal pins, bio-plastic.
Dimensions: Height 31ft (9.5 m) – Footprint Ø 12 ft (3,7 m).
Surface Area: Mesh 323 sq ft (30 sq. m)
Collector 87 sq ft (8.1 sq. m), Canopy Ø 32 ft (10 m).
Cost : ~ $1,000 (production in Ethiopia).
Maintenance : easy to be maintained, cleaned and repaired.

Materials

 

 

 

bamboo forest

BAMBOO

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MESH

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POLYESTER ROPES

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NATURAL FIBER ROPES

 

 

 

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Warka is realised with local and biodegradable materials such as bamboo, fiber ropes and bio-plastic.

Components

 

 

 

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Packaging

 

 

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Warka Water is designed to be easily transported also where infrastructure are limited. The tower is modular and the elements join together with a simple technique.The size of each module is small enough to be transported even by foot climbing up to steep pathways to remote places where no means of transportation can reach.

 

 

Tools

 

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LOCAL TOOLS

 

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BAMBOO SPLITTER

WS_IM_PJ_MK_TL_Caliber

CALIPER

WS_IM_PJ_MK_TL_Drill

DRILL

WS_IM_PJ_MK_TL_Hammer

HAMMER

WS_IM_PJ_MK_TL_Sewing_Machine

SEWING MACHINE

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NOSE PLIER

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SCISSORS

WS_IM_PJ_MK_TL_Plier

PLIER

WS_IM_PJ_MK_TL_Saw

SAW

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TAPE MEASURE

WW is designed to be easily built and maintained without the need of scaffolding or electrical equipments. We are working in collaboration with the local community integrating traditional tools and construction technique.

Research

 

 

 

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We are conducting researches on various subjects in the following fields: – Water Harvesting and Collection – Weather Monitoring Equipment – Water Filtration Material and Technique – Biodegradable Materials – Natural Ventilation and Sun Path.

Fog Harvesting

 

 

 

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Fog harvesting isn’t a brand-new idea but go back to thousands of years ago in arid regions.
During wet conditions, water droplets collect on the mesh, flow downwards by gravity and drip into the Collector. The water is then channeled to the storage tank located at the center of the Warka Water base.
The systems also require no power to run. New filters and net repairs are the basic maintenance requirements. Drawbacks generally come from dust and debris that blow into the nets and spill into the water as it collects.

 

 

Dew Condensation

 

 

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Warkino

 

 

 

imgpsh_fullsize2A meteorological station designed specifically for the development of the WW, Warkino enables us to study the water harvesting abilities of different types of materials under various climatic conditions. Warkino helps us to monitor the local environment (humidity, air pressure, temperature, winds, water collection, water quality, material surface temperatures). The Warkino is fundamental to launching a successful pilot and improving the water harvesting materials.

Web Interface

 

 

 

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Tests & Experiments

 

 

 

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Italy

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Ethiopia

Tests and research activities are conducted in a rural location in central Italy, with full-scale prototypes and materials. The ongoing daily experiments have brought new changes and updates to latest version, Warka Water 3.2. We are selecting potential sites in Ethiopia to launch the first pilot. The most important criteria for pilot are the lack of potable water and the urgent needs of the community for a solution. We will also assess other important factors relating to the local environment such as pressure, average temperatures, humidity, dew point and precipitation.

Environmental Impact

 

 

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Warka Water mainly uses local natural and biodegradable materials. It is a temporarily structure designed to not leave traces on the environment after removal and therefore doesn’t require excavation or ground modification works for set-up. The Warka doesn’t extract water from the ground. In addition to drinking water, the water generated by the Warka tower can be used for irrigation, reforestation, and ecosystem regeneration. As part of training local villagers, we plan to institute a water management program that teaches the best practices of using, distributing, and recycling harvested water. Through this program, we hope the villagers can understand our relationship with the environment and move away from the “slash-and-burn” agriculture, which is responsible for deforestation.

Long-Term Results

 

 

 

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The Warka Water project is currently in development with first test pilots scheduled to launch in the first quarter of 2015. We believe that installing the Warka tower in remote villages can lead to numerous impactful initiatives: – Education: Women and children can engage in productive activities such as care, education and crafts that can lead to self-sufficiency – Economy: Manufacturing the Warka tower locally and sourcing indigenous materials can create jobs and boost the local economy – Society: The Warka tower’s canopy creates a gathering place for the community – Agriculture: Water produced by the Warka tower can be used for irrigation and farming – Environment: the water management training program can introduce the principles of permaculture – Technology: Future developments include a shared internet connection point for rural villages, which can connect the isolated communities and bring valuable real-time information (e.g., weather forecast, market prices of crops)

Innovative Methodologies

 

 

 

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Warka Water is designed for autonomous distribution and scaling. The tower can be easily built and maintained by the local communities using simple tools. The tower can be also maintained without using special parts or heavy machinery. With training and guidance, the locals can easily build and maintain the Warka tower. This local know-how can then be transferred to surrounding communities, with villagers helping install other towers in the area and creating an economy based on the assembly and maintenance of the towers. This can expedite the scaling of Warka Water in the region. Following the prototype development and testing phases, we intend to start manufacturing the Warka on a large scale, which can bring the material’s cost down to $1000 per tower significantly less than other water relief options available.

Integration

 

 

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As part of the Warka Water project, we will also plant a new Warka tree next to each Warka tower. The growth of the sapling will be supported by the water generated by the Warka towers as well as the dedicated team from the local community that maintains the tower. With time, the new tree will not only counterbalance the negative effects of increasing deforestation, but also will help create a better environment for the Warka tower to function. The humidity created by the tree will facilitate the water production of Warka Water.