NOTE  URLs or email addresses are hyperlinks which when accessed transfer direct

to the web page or your email program.

 

 

 

 

 

 

 

 

WIND POWER [contra-rotation - 40% more effective than single rotor & no gearboxes] Contact the Secretary for the December  2004 Marine Scientist  IMAREST paper [No.9 4Q page 42] also covers Water Engines. used for TIDAL POWER

 

http://www.integener.com/HomeLinksAndProjs/Page01.htm#LnkA05

www.integener.com

http://www.itdg.org/docs/energy/EnergyBooklet6.pdf.

http://www.cycom.co.uk

                                                                                                                    Trimblemill

GOOGLE SITES [Search for Contra Rotating Wind Turbines]

The aerodynamics of contra-rotating axial flow wind power turbines

Title: The aerodynamics of contra-rotating axial flow wind power turbines Authors:

Vanderelst, WJ Affiliation: National Mechanical Engineering Research ...

adsabs.harvard.edu/abs/1979STIN...8033868V -

 

http://adsabs.harvard.edu/cgi-bin/nph-bib_query?bibcode=1979STIN...8033868V&db_key=PHY&data_type=HTML&format=

 

Kolloqium des Institutes fuer Aerodynamik und Strömungstechnik des DLR; Actuator Disk

Modelling of Contra-Rotating Wind-Turbines AP Schaffarczyk CFD Lab. ...

149.222.198.151/~nummech/pub/ - 21k - Cached - Similar pages

 

[PDF] ENERGY INNOVATIONS SMALL GRANT (EISG) PROGRAM

File Format: PDF/Adobe Acrobat - View as HTML

Force Vector Diagram in a Contra Rotating Wind Turbine System. 10. Figure 5.

Power From 4-Meter Diameter Contra Rotating Rotors ...

eisg.sdsu.edu/Far/00-09%20FAR%20Appendix%20A.pdf -

 

ROOF TOP WIND TURBINE

www.superturbine.net

www.eurowind.co.uk

http://www.carbonconcepts.co.uk/

 

Contra Rotating Wind Turbines - good for offshore & on buildings

http://www.earthtoys.com/emagazine.php?issue_number=07.04.01&article=contra

http://www.wipo.int/pctdb/en/wo.jsp?wo=1992012343&IA=WO1992012343&DISPLAY=DESC***

Axial Flux Alternators, for low speed units and VAWT’s

http://www.dur.ac.uk/engineering/nareg/industry/case/

 

UK wind farms are an interesting combination of investment subsidies and potential “write offs” against

tax liabilities. In essence the whole cost of such projects is ultimately borne by the tax payer. Who is further

mulcted for VAT on the electrical energy purchased, while much of the latter is lost down the often long transmission systems from wind farm to user. Long term is may be that the best application for offshore wind farms is Hydrogen production.

Meantime the very considerable energy potential of all roof areas, river and inshore tidal hydro ,biofuels, and waste disposal by digestion or incineration is to a great extent under developed.

Herein lies an enormous potential for UK Industry and Commerce.