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| Windmill
applications |
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Water
supply for agriculture and cattle raising |
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Windmills
are useful not only in small farms but also in huge extensions.
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Drinkable
water supply
It is very popular nowadays to use windmills for pumping up
water in villages or small towns. |
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Agricultural
Farm Installations
This is the case of fruit tree and horticultural fields, vineyards,
warren. Besides, it is a key since a windmill may reduce the
cost of artificial watering systems. |
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Multi-installations
in big cattle raising fields.
In this case, we design windmill tandems (multi-installation).
The main advantage of a multi-installation is the possibility
to profit from existent water holes in the field. |
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Water
quality improvement
Windmills are able to pump up water from ponds (or other) in
order to get appropriate levels into oxygen solved in the pond.
In many cases water in the pond has very low concentration of
solved oxygen, and sometimes it is absolutely absent causing
death to aquatic organisms. Water pumping by means of windmills
assures necessary proportions of qualified water in an economic
way and respects the environment. |
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Water
transferring between dam of different levels |
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Empting
quarries, ponds, overflowed areas, etc. |
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Water
supply for little lakes, public garden and fountains
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Water
supply in National Parks |
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Water
supply for industries |
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Water
recycling and cleaning installations |
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Water
supply for week-end houses and countries either for
drinking or irrigation, filling up swimming pools, hydroponic
cultivations. |
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Quality
water improvement |
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| Benefit
of windmill use |
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Free
energy
It is free as wind and solar energy. It doesn´t damage
the environment and when fuel is excessively expensive, once
more it makes sense to use eolic energy to get water |
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Long
lasting
Solid and tested construction windmills make our windmills endless
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Minimum
care
Our windmills demand little care, (just 1 or 2 oil changes a
year). |
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Great
capacity in extracting water
Our different models offer the possibility of being adapted
according to your needs, even at 100 m deep surface. |
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Technology
has not still -and even not in an immediate future- been able
to put windmills away: centenary windmills will always survive
to modern alternatives. |
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| Poldaw
Windpumps can pump from: |
| Open
(dug) wells |
Rivers
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| Boreholes
(tube wells) |
Lakes
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| Springs
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Marshes
(drainage) |
| Dams
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Sea
(salt production) |
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| Pumping
systems:- Poldaw
Wind pumps not only lift water to a surface tank adjacent
to the source but also, with appropriate plumbing, can
pump water great distances and to substantial heights.
Poldaw Wind pumps are used to pump water to: |
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Tanks on raised stands or nearby hills |
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Remote tanks or reservoirs (distances of over 1 km and
heights of 50 m) |
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Pressurized drip irrigation systems |
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Water distribution systems (usually with header tank) |
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| PUMPING
PERFORMANCE The
output capacities for the range of possible Poldaw Windpump
applications can be seen in the following tables. |
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| Poldaw
3.5m Wind pump (Approximate outputs in litres per 24 hours) |
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Total
pumping head(meters) |
Light
wind3m/s (6.5 mph)(liters) |
Medium
wind4m/s (9 mph)(liters) |
Strong
wind5m/s (11.5 mph)(liters) |
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| 5
10
15
20
25
30
40
50
60
70
90
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45,000
22,000
15,000
11,000
9,000
7,000
5,500
4,000
3,000
2,500
1,500
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92,000
45,000
29,000
21,000
16,000
13,000
9,500
7,000
5,500
4,500
3,000
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149,000
73,000
48,000
35,000
28,000
22,000
16,000
12,000
10,000
8,000
6,000
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| The
Poldaw 5.0m produces approximately twice as much
as the Poldaw 3.5m, and also can pump from much
greater depths. |
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| Poldaw
5m Wind pump (Approximate outputs in litres per
24 hours) |
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Total
pumping head(meters) |
Light
wind3m/s (6.5 mph)(liters) |
Medium
wind4m/s (9 mph)(liters) |
Strong
wind5m/s (11.5 mph)(liters) |
| 5
10
20
30
40
50
60
80
100
120
140
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93,000
46,000
23,000
15,000
11,000
8,000
6,000
5,000
3,400
2,400
1,700
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185,000
90,000
42,000
26,000
19,000
14,000
11,000
8,000
6,000
4,600
3,500
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301,000
145,000
70,000
45,000
32,000
24,000
19,000
13,000
9,000
6,700
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