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Comparativa_SistemasVentilacion_Eolico
Comparativa_SistemasVentilacion_Eolico
This document provides a comparative analysis of various wind ventilation systems available in the market, highlighting their specifications, advantages, and potential drawbacks. It emphasizes the importance of quality over cost, suggesting that cheaper options may incur higher long-term expenses.
Types of Wind Ventilation Systems
- Spinning Cowl Galvanized Steel: Lacks a stabilizing structure, blades are welded to the mobile neck, potentially allowing water entry. Tested at 60-70 km/h with a 1-2 year warranty.
- Spinning Cowl Stainless Steel: Similar to the galvanized version but tested at 70-80 km/h.
- Aluminium Extractor: Features a stabilizing structure, but blades are prone to breakage. Warranty of 1-2 years.
- Ecco Basic Wind Extractor: Includes a stabilizing structure with riveted blades to prevent water entry. Tested at 100-120 km/h with a 10-year warranty.
Key Considerations
- Rivets vs Weld Points: Rivets ensure integrity, while weld points may detach under wind stress.
- Independent Pieces vs One Piece: Independent assembly enhances rigidity, but manufacturing microcracks can lead to premature breakage.
- Stabilizing Structure: Essential for shaft stability against wind gusts, prolonging the life of bearings and the extractor.
- Material Thickness: Critical for resistance to wind and corrosion, with recommended blade thickness of 0.8mm and other elements at 1.5mm.
- Aluminium vs Steel: Material choice impacts durability and performance.
- Design Against Water Entry: Overlapping blades prevent water ingress, whereas non-overlapping designs may allow it.
- Special Bearings: Stainless steel with special seals offers advantages over other materials.
Potential Failures in Low-Quality Systems
- Blade Breakage: Caused by wind action at weld points, leading to water entry.
- Shaft Bending: Due to inadequate diameter and lack of stabilizing structure.
- Water Entry Design Flaws: Non-overlapping blades can allow water ingress.
- Blade Design Issues: Direct blade attachment without rivets can lead to breakage and water entry.
Conclusion
The report underscores the importance of investing in high-quality wind ventilation systems to avoid long-term costs associated with failures and inefficiencies. It highlights the critical role of design, material choice, and structural integrity in ensuring system durability and performance.
Catalog excerpts
COMPARATIVE REPORT OF THE WIND VENTILATION SYSTEMS THAT EXIST CURRENTLY IN THE MARKET ARE ALL WIND VENTILATION SYSTEMS THE SAME?
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COMMITED WITH QUALITY, CHEAP OPTIONS CAN BE MORE EXPENSIVE IN THE LONG RUN Spinning cowl Galvanized Steel Ventilation system without stabilizing structure, and the blades are attached to the mobile neck by means of welding points. Its design can cause entry of water. Tested at 60-70 km / h With a warranty of 1-2 years Spinning cowl Stainless Steel Ventilation system without stabilizing structure, and the blades are attached to the mobile neck by means of welding points. Its design can cause entry of water. Tested at 70-80 km / h With a warranty of 1-2 years Aluminium Extractor Ventilation...
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COMMITED WITH QUALITY, CHEAP OPTIONS CAN BE MORE EXPENSIVE IN THE LONG RUN Most important parts of the Wind Extractor or Spinning cowl Rivets vs Weld Points Advantage: The use of rivets for the union of each one of the pieces ensures the integrity of the whole indefinitely. Inconvenient: The welding points in systems in continuous movement are not safe and could be detached by the action of the wind ( see photos 1 and 4 ) Independent pieces vs One piece (premature cracking breakage) Advantage: The blades are assembled independently, ensuring the whole set by its rigidity Inconvenient: The microcracks...
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COMMITED WITH QUALITY, CHEAP OPTIONS CAN BE MORE EXPENSIVE IN THE LONG RUN Possible failures in low quality Wind Ventilation Systems Photograph 1 Blade breakage due to wind action. Failure produced in the welding points of union between the blades and the moving neck, with the consequent entry of water The shaft has bent due to the action of the wind. The failure is due to the small diameter of the shaft, since this system does not have a stabilizing structure The design of this ventilation system can cause entry of water between the blades, because the blades start from the top without overlapping....
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