Hydrodynamic Screw Generators
Supplying Screw Generators (Hydrodynamic screws)for Hydro Power generation schemes is a natural progression for Spaans Babcock who have been supplying and servicing Archimedes Screws in the UK for more than 40 years. Spaans can deliver a complete turnkey solution commencing with a feasability study all the way through to a full service contract on completion of installation. We don't consider any job to small.
In the first project of its type in the UK and almost certainly one of the largest such projects in the World, Yorkshire Water is to utilise Spaans Babcock “Screw Generators” to generate electricity from the discharge flows from its Esholt Sewage Treatment plant, the electricity generated will be transferred back into the mains grid.
The equipment supplied will comprisestwo 2.6 metre diameter Screw Generators, each being a Compact style screw and weighing more than 20 tonnes.
The generators areinstalled in series, with 2678 l/s flowing sequentially through the two screws over a total fall of around 10 metres, approximately 180 kWis generated (90 kW per screw generator).
Screw generators can be utilised anywhere where suitable flows and heads exist, other potential uses include:
The large openings in the flights mean that where screw generators are used in applications in which fish could be present this does not present a problem as they are fish friendly. Indeed screw pumps which are effectively screw generators in reverse have been used as fish ladders. The Screw generators offer all the usual benefits associated with screw pumps including:
In the modern climate where alternative “green” energy sources are very much in the spotlight the screw generator offers a simple, reliable and proven means of harnessing the earths natural resources.
N.B. The information contained in this entry is provided by the above supplier, and does not necessarily reflect the views and opinions of the publisher