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The World´s Water Crises Explained

From Not Enough to Too Much, the World’s Water Crisis Explained

Many more cities than Cape Town face an uncertain future over water. But there are emerging solutions.

“Day Zero,” when at least a million homes in the city of Cape Town, South Africa, will no longer have any running water,
 
Sauberes Wasser wird knapper...weltweit gesehen
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Die Wasserversorgung ist eines der wichtigsten globalen Themen.

Wasser wird mehr und mehr die strategische Ressource schlechthin darstellen.
 
Global water crisis: Facts, FAQs, and how to help

Every child deserves clean water.

There’s nothing more essential to life on Earth than water. Yet, from Cape Town to Flint, Michigan, and from rural, sub-Saharan Africa to Asia’s teeming megacities, there’s a global water crisis.
 
Cities in the face of drought
More than five billion people could suffer water shortages by 2050, as a vicious combination of climate change, increased demand and wasteful inefficiencies plunge the world’s water supply under threat. The Telegraph investigates what can be done to prevent future crises.
 
Water becoming more valuable than gold

Over the past 10 years the S&P 500 Global Water index has outperformed the bellwether gold and energy indices. Water becoming more valuable than gold
 
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Windgiant Turbine 20 kW


 
View perspective wind single turbine 20 kW



The powerful WINDGIANT WG 20 on the professional version of a flexible concept for the WINDGIANT inland was developed, which can be adapted to different wind speeds and hence the global conditions of the market and location corresponds.

 

Technical description

Designation:                                      WG 20

Class:                                                  20 kW
Hub height:                                        18 m/21 m

Focusing turbine:
Inflow diameter:                                 4,5 m
Rotor inflow area:                              15,89 m2
Rotational direction:                          right clockwise
Rated speed:                                      90 U/min
Brake:                                                   electromechanical braking system

Noise output level: 39 dB(A) at 1040 rpm at a distance of 10 m
Transmission: planet-gear
Generator: synchronous-permanentmagnetgenerator

Wind direction tracking: sliding bearing live ring with azimutgear  

Start up speed: 0,8 m/sec
Start speed: 1,5 m/sec at roughness class 0,5
Rated speed: 12 m/sec at raoughness class 0,5
Shut down speed: 20 m/sec

The right to make technical changes and further developments is retained.
 

Power and moment at 12 m/sec


20_kW-Graphik-Leistungskurve.pdf

Power in kW at 12 m/sec

Powers-T3R1-4.5m-durchmesser-12mps

Moments in Nm at 12 m/sec

Moments-T3R1-4.5m-durchmesser-12mps

 

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