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The design development and testing of a low-cost 10 HP windmill prime mover.
by Richard E. Chilcott
| Institution: | McGill University |
|---|---|
| Department: | Department of Agriculture Engineering. |
| Degree: | MS. |
| Year: | 1969 |
| Keywords: | Agricultural Engineering. |
| Posted: | |
| Record ID: | 1532743 |
| Full text PDF: | http://digitool.library.mcgill.ca/thesisfile129625.pdf |
An airscrew windmill has been designed for use in the north east trade wind regime of the Caribbean, which is shown to be particularly favourable for agricultural irrigation purposes. The high-speed fixed-pitch airscrew incorporates the most recent aerodynamic theory and is manufactured from fibre-glass reinforced epoxy resin. To compete with conventional prime movers high efficiency, low cost and long life are maintained by the use of standard industrial and automotive transmission components. The strength of the blades and supporting structure has been confirmed by structural proof tests. Field tests, in which the windmill was connected to a standard deep-well turbine pump for sprinkler irrigation, have been made to determine the aerodynamic integrity of the airscrew design. The detailed performance characteristics obtained over an extended operating range provide a guide for wind pumping performance prediction purposes in water resource development programmes in the Caribbean and elsewhere. Une éolienne a été conçue pour être utilisée en fonction des vents alizés du nord-est pour fins d'irrigation aux Antilles. L'hélice est du type a pales fixes et a haute vitesse de rotation. Sa conception est basée sur les theories aérodynamiques les plus récentes et elle est fabriquée en fibre de verre renforce d'une résine epoxy. Afin de pouvoir faire concurrence aux autres formes conventionnelles d'énergie, le mécanisme de transmission utilise les elements d'une transmission de camion. La resistance des pales de l'hélice et de la tour qui la supporte a fait l'objet de maints essais. Des épreuves sur le champ, alors que 1'éolienne était raccordée a une pompe a turbine pour puits profonds utilisée pour fins d'irrigation, ont été effectuées afin de verifier le rendement actuel de l'éolienne. La performance obtenue sous différents regimes éoliens sert de guide a l'utilisation de cette machine lors du développement des ressources hydrauliques aux Antilles et ailleurs.
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