Multifan axial fans for greenhouse ventilation

3. Vostermans Beheer BV
Vostermans O.G. BV
Vostermans Ventilation BV
USA
Malaysia
France
Vostermans Alu Foundries BV

4. Verschillende merknamen
Verschillende producten
Verschillende markten
Unieke, eigen productie motoren

6. Multifan Greenhouse fans

7. Multifan Greenhouse fans
• 3 years warranty on the complete
fan
• Wireguards easy to mount
• Spare parts are available separately
• Spare parts easy to replace
• Excellent controllability of RPM
• Efficiency according latest standards
• Fans meet the IP55 standard

8. Greenhouse projects

9. Multifan Nozzle Fan
• Lowers the temperature in
greenhouses
• Climate control at low costs
• Optimal distribution of the mist
• Easy to install
• Low maintenance level

10. Multifan 130
• High air volume (45.600 m³/h) with low
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power consumption (36,9 W/1000 m³/h)
Stable construction, quality parts
Smooth finishing on construction
Designed to allow minimal air losses
Low noise level
Easy to clean for optimal hygiene

11. Greenhouse projects

12. Multifan V-FloFan

13. Why a V-FloFan?
• Demand from the market for improving the microclimate
• Wageningen University and Research Center
–
Humidity level on crop level
– Energy savings
• Floriade World Horticultural Expo
– HighTech Greenhouse 2020
– Greenhouse ventilation

14. Development of the V-FloFan

15. Vertical airflow

16. Optimal design

17. Air distribution

18. Air distribution

19. Situation

20. V-FloFan applications

21. V-FloFan
Important notes (WUR): “ The New Cultivation”
• No temperature differences, which occur because of cooling across the
screen or heating from the lightning, as a result of airflows over long
distances across the screen
• The vertical airflow realizes an active microclimate on crop level and high
crops
• Uniform airflow over a higher surface
• Heat from sun or lightning are transported down effectively by movement
without increasing the pressure and with the lowest energy level as
possible (as is the case when using tubes)
• Because of the correct division between the fans there is both a vertical
balance as well as a small horizontal balance

22. V-FloFan applications
Effective advantages – conclusions:
• Optimal air distribution for prevention of vertical
temperature differences
• Improved control of humidity level on crop level
• Reduction of energy costs
• EIA 2013 subsidy (Netherlands only)
• Constant low air speed on all levels
• Optimalisation of an active micro climate

23. V-FloFan applications

24. Number of fans
• Horizontal ventilation: on average 1 fan per +/- 600 m²
• Vertical ventilation:
on average 1 fan per +/- 360 m²
In comparison to existing vertical systems very efficient

25. Contact us:
ventilation@vostermans.com
+31 77 389 32 32