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Multifan greenhouse ventilation

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Vostermans Beheer BV

Vostermans O.G. BV

Vostermans Ventilation BV

USA

Malaysia

France

Vostermans Alu Foundries BV

Verschillende merknamenVerschillende productenVerschillende markten

Unieke, eigen productie motoren

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

Multifan Greenhouse fans

Greenhouse projects

• Lowers the temperature in greenhouses

• Climate control at low costs• Optimal distribution of the mist• Easy to install• Low maintenance level

Multifan Nozzle Fan

Multifan 130• High air volume (45.600 m³/h) with low

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

Greenhouse projects

Multifan 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

Why a V-FloFan?

Development of the V-FloFan

Vertical airflow

Optimal design

Air distribution

Air distribution

Situation

V-FloFan applications

V-FloFanImportant 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

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

V-FloFan applications

V-FloFan applications

• 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

Number of fans