What is Hydrodynamic Screw

What is Hydrodynamic Screw?

Hydrodynamic screw is the Archimedes screw pump in reverse, work by making use of the energy of moving, flowing, or falling water to spin and rotate the Archimedes screw. The giant Archimedean screw is linked to a power generator which harnesses this hydro energy. it works in a very similar way to turbines and water wheels that can also be found in hydro dams or along water ways.

 

The Archimedean screw or Archimedes screw pump

the water extraction screw or screw pump has been known since ancient times. Actually it is very well known in water technology and most commonly used in the waste water and sewage industry.

 

What is new is the application of Hydrodynamic screws

which by an inversion of the energy flow in its operation, turns the Archimedes’ screw trough pump into a hydro power generator for the extraction of renewable hydro energy.

 

A hydro power generating facility makes use of the energy difference between two different levels of flowing water

by transferring the water from natural bed of the stream at the higher level to the bed at the lower level and effectively extracting its potential hydro energy, which is then made available at the rotor shaft forhydroelectric or mechanical use.

 

Hydro-dynamic screw is Eco friendly through the utilization of this hydro energy

which is left unused by nature, an energy source is tapped; with Hydro-dynamic screws help a part of our energy requirements can be covered using this renewable energy source, which would otherwise have to be covered by fossil fuels.

 

Image of hydrodynamic screw with descriptions of main components

 

The excellent properties of the hydro-dynamic screws are

its minimal disturbance to the environment, the environ-mental friendliness and long service life. The large openings in the screw flights mean that where screw generators are used in applications in which fish could be present this does not present a problem to the fish as they simply swim through slowly revolving hydrodynamic screw. They are fish friendly Indeed screw pumps which are effectively screw generators in reverse have been used as fish ladders.

 

Screw generators can be utilized anywhere where suitable flows and heads exist

other potential uses include:

• Rivers
• Cooling water outlets from power stations
• Industrial process water (for example paper or steel mills)

 

A capacity of 0.1 to 5.5 cubic meter per second and a head up to 10 m, enables it to utilize hydrodynamic powers which are ruled out for turbines for reasons of cost.

 

The rotation rates of hydrodynamic screws are low

they lay between 80 min-1 for small screws and 20 min-1 for large screws.

 

With hydrodynamic screws, even minimum hydrodynamic potentials at powers from 1 kW can be made use of economically.

 

With hydrodynamic screws, fine screening installations for protecting against floating objects and fishes, needed for turbines, are not necessary.

 

Energy losses leading to a decrease in head are also done away with, likewise losses in flow rate from the screening installations, both of which can have a detrimental effect on the efficiency of the facility.

 

The constructional effort required for a hydrodynamic screw is small

compared to that required for a turbine. If the compact version of a hydrodynamic screw (hydrodynamic screw + trough + power take-off unit combined as a single unit) is used, the constructional effort can be further reduced.

 

Small hydrodynamic facilities hide an immense potential for extracting natural energy from water power

In the process, the “water” is only used and not used up. Another positive aspect is that the water becomes enriched with oxygen, which in turn improves the quality of the water downstream.

 

Hydrodynamic screws can be optimally introduced into the environment with little effort and without disturbing effects.

 

With this new product application the hydrodynamic screw a new model has been added to the classical water power generators, the waterwheels and turbines.

http://www.archimedeshydroscrew.com/what-is-hydrodynamic-screw/