CloudFisher mini EN

CLOUDFISHER
MINI
WATERFOUNDATION
The WaterFoundation is active in countries where the lack of clean drinking water
threatens the livelihood of the population. We sponsor projects mainly in rural areas, with
particular emphasis on helping families, women and children. We support self-determined
development, enabling people to take care of their own water supply in the future. We
offer solutions that are tailored to people’s everyday needs, taking account of cultural and
environmental factors and of technical and financial constraints.
Aqualonis GmbH
Industrial designer Peter Trautwein has developed the CloudFisher Pro and CloudFisher
mini for the WaterFoundation. Aqualonis GmbH, based in Munich, was founded to
implement this technology worldwide. As a licensee of the WaterFoundation, the company
markets and sells the CloudFisher products. Aqualonis develops, plans, builds and
maintains fog water collection systems. It is distinct from the WaterFoundation, a strictly
non-profit organization that cannot engage in or accept liability for activities involving a
commercial aspect.
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ERITREA
The WaterFoundation has been active in Eritrea since 2002. The East African
country, bordered by Sudan, Ethiopia and Djibouti, has a 1 000 km coastline
along the Red Sea. Eritrea has a total area of around 125 000 km2, with
altitude differences of over 3 000 metres between the central highlands and
the Danakil Depression, which lies below sea level. Annual rainfall ranges from
100 mm in the dry coastal plains to 700 mm or more in the central highlands
and the mountainous eastern region; in most areas, there are also wide local
variations.
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Only 100 years ago, 30% of the country’s surface was covered by forest. This
figure now stands at 1%; some estimates are even lower (NEMP-E, 1995; Haile et
al., 1998; NAP, 2002). The consequences of deforestation are evident throughout
the country. In recent years, moreover, rainfall was either irregular or torrential.
Eritrea is in the grip of a long-term drought. The fight against deforestation and
ongoing desertification calls for many different measures, each one of them part
of a larger vision.
WOMEN SPEND MANY HOURS
FETCHING WATER
In remote areas, without wells or other sources of water, women and girls often have to
walk long distances to fetch water for their families. They carry the water on their
backs, in canisters, earthenware jars or gourds. The task is laborious and causes spinal
deformation, especially in young women. To help them, the WaterFoundation set up a
programme in 2002 to provide donkeys as water carriers. Since then, over 1 430
donkeys have been distributed in Ethiopia and Eritrea.
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ERITREA’S MAJOR RIVERS
HAVE DRIED UP AND ONLY
BEAR WATER DURING THE
SHORT RAINY SEASON.
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WATER RESOURCES
The WaterFoundation seeks and promotes possibilities for exploiting new
water resources. A particularly important approach in this field lies in
harvesting clouds and fog. The CloudFisher fog collector, developed on behalf
of the WaterFoundation, can provide people in many countries with cheap
and clean drinking water.
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THE CLOUDFISHER
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PATENT
PENDING
THE CLOUDFISHER MODELS
CloudFisher Pro TM
CloudFisher mini TM
for villages, schools, industry, agriculture and forestry
test collector for domestic use
6m
3m
The amounts yielded per fog-day differ according to region and season.
They vary between 6 and 22 litres per square metre of net surface.
52,8 m2 total net surface
6 litres/m2
316,8 litres
2
1.161,6 litres
22 litres/m
16,5 m2 total net surface
6 litres/m2
99 litres
2
363 litres
22 litres/m
Water consumption (examples)
316,8 litres : 7 litres per person/day = 45 persons
1.161,6 litres : 7 litres per person/day = 166 persons
Water consumption (examples)
99 litres : 7 litres per person/day = 14 persons
363 litres : 7 litres per person/day = 52 persons
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METEOROLOGY
Each fog project starts with the collection of meteorological data on wind
speeds and directions, relative humidity and temperature, precipitation and
amounts of water collected. These findings are used to decide whether the
location is appropriate for a fog water production system and how best to align
the collectors.
What, though, if the technical knowhow and the financial means for measuring
equipment are lacking? What can be done so that people can help themselves
and become independent?
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CLOUDFISHER MINI
During the fog season, the CloudFisher mini can be used to determine
the yields of the three net surfaces arranged at different angles. The net
that collects the most water is the one positioned at the most favourable
angle to the wind. No special instruments are needed: the measurement
is done by simply reading off a scale on each water canister.
Ground peg
Water canister
Ground peg
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The supporting structure is anchored
in the ground with pegs
The second step is to arrange the nets in a straight line.
The net in the middle delivers the largest yield. The wind blows directly
onto the surface, so more water droplets are caught in the mesh.
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Earth filling
Ground peg
Geo-grid
inserted in tube
Water canister
Geo-grid
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Driving pegs into the ground is not always easy,
especially when the earth contains rocks and
large pebbles. In such cases, a frame extension is
used, with horizontally inserted ground pegs
under a geo-grid. The earth filling in the cavity
replaces an expensive concrete foundation.
In arid desert regions, fog is
often the only source of water.
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MONSUN
In Eritrea, the fog period, from November to June, is
followed by the monsoon season, with “small” and
“big” rains. Here, the nets are supplemented with
horizontally attached polyethylene sheets to collect
water. Depending on how clean it is, the rainwater
can be used for human consumption or to water
crops or cattle.
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Gutter for rainwater
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»Clean water is the basis for
social, economic and cultural
development.«
Ernst Frost, WaterFoundation
CONTACT
Aqualonis GmbH
Peter Trautwein
Westendstraße 147
80339 München
Tel +49 (0) 89 480881-24
[email protected]
www.aqualonis.com
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WaterFoundation
Lechnerstraße 23
82067 Ebenhausen
[email protected]
www.wasserstiftung.de