Greenhouses require many fans if they aim for constant and reliable harvesting. High quality crops require fresh air and air circulation. Greenhouse fans generate ventilation and circulation. Enerdes is a main supplier of Climafans, which are affordable greenhouse fans that deliver excellent performance. Climafans are EC fans, which means they are extremely energy efficient and have a long life span. They have been developed such that they can be easily integrated in your greenhouse and they can be monitored and controlled at all times by MODBUS. Climafans can move air volumes up to 25.000 m3/h (15.000 cfm). Please contact us for more information and technical specifications on the greenhouse fans we can offer you.
Before ordering a big amount of fans for your greenhouse, it is important to determine how many fans you will need, where you will place them and how you will power and control them. Some greenhouses simply turn their fans on and off, others work with variable speed fans. Many different types and sizes of fans exist and it depends on the type of greenhouse, climate and available space you have, which fan is the optimal choice for you.
Hot air will rise to the top of your greenhouse. Most likely, you will have fresh air intakes somewhere along the walls of your greenhouse. Without fans or circulation fans, this would lead to an extremely variable temperature distribution and CO distribution in your greenhouse. One area of plants may be too dry or grow too slow, other areas may get too wet and develop mould or diseases. In other words, without fans your product quality and crop yield would be very disappointing.
Enerdes can model your greenhouse and determine the most optimal fan placement with the minimal amount of fans to save you energy and costs. Enerdes developes, produces and supplies all types of greenhouse climate control systems including all types of greenhouse fans:
Fan placement is incredibly important in a greenhouse. Too little fans and the temperature distribution as well as the CO distribution will be suboptimal for you plants. This will lead to reduced crop quality and less crop yield. Too many fans and your energy bill will be unnecessarily large. Enerdes can model the optimal amount of fans to be placed in your greenhouse and their orientation. It is important to think about the orientation and the distance between the fans, otherwise vertices may occur in one area, whereas stagnant air occurs in other areas. Stagnant air is very disadvantageous because it causes reduced crop growth and increases the chance for plant diseases and mould. Information needed to determine the optimal greenhouse fan placement is for example:
As every greenhouse and especially their climate and their crop are unique, it is important to model the greenhouse in order to determine what greenhouse climate systems are most suitable for you. At Enerdes we have over a hundred years of thermodynamic knowledge and greenhouse experience available. Our highly educated engineers can use CFD (modelling of air flows and water) and in house developed thermodynamic models to accurately design your greenhouse. We have developed many different air handling units, each optimal in different circumstances. We know exactly what will fit your product and your budget best. Feel free to contact us for advice.
It is important to think of both horizontal air circulation as well as vertical air circulation when furnishing a greenhouse. Circulation fans hanging in the top of the greenhouse will provide horizontal air circulation as they will spread the air evenly across the entire greenhouse area, resulting in a homogeneous temperature distribution for all plants. It also spreads the introduced fresh air around the whole greenhouse, giving all plants the same CO and CO2 levels. Air distribution hoses or air ducts as well as strategically placed fresh air intakes, help with vertical air circulation. This evens out temperature differences even further, but is especially beneficial to optimizing humidity levels. Moisture build-up and plant deterioration are avoided when air circulation and air distribution are executed well. At Enerdes we can help you achieve this and we will design the most optimal air distribution and air circulation system for you. Getting the best air flow to all plants while keeping energy consumption to a minimum is our main goal!
A lot of moisture buildup under the gutter is bad for the crop. This is the result of stagnant air. To prevent a “dead” climate, recirculation fans are installed under the crop gutters, connected to air distribution hoses. The fan ensures that moisture build-up under the gutter is prevented because there is a constant air flow under the crop. The plants are not directly in the airflow of the ventilator, but they do benefit from the air movement that is created. This also results in an increase in production and an energy saving.
Recirculation under the crop ensures that the heat and CO2 in the greenhouse are distributed more optimally. This allows for energy savings. In addition, the air displacement ensures a better heat distribution of the tubular rail heating. This results in a lower return water temperature.
Enerdes is the exclusive dealer of EBM Papst EC fans for horticulture. EC technology has both ecological and economic excellence. EC fans move up to 2 times more volume than comparable AC fans at the same power consumption. In addition, they have a very long lifetime and are energy efficient. Our fans can be controlled wirelessly per fan or by means of a 0-10V signal or PWM control.
Our fans can be controlled wirelessly through a computer program. The rotation speed and startup time are easily set for all your fans, for a specific group of fans and even per single fan. Once multiple fans are assigned the same setpoints, the built-in repeaters ensure that the signal is repeated. To protect your data, the sender and receiver use encrypted data. The software is suitable for all EBM Papst EC fans. Installation is easy, we can attach any plug ex-factory (for example Wieland) to make the system plug-and-play. Now the system is ready to use immediately and plug directly into the power outlet and the system works immediately. Besides wireless control, our fans can also be controlled by a 0-10 V signal or PWM control.
The fans under the gutter are coupled to air distribution hoses. The hole pattern in the air distribution hoses ensure that the heat and CO2 reaches the plant in an optimal way. End caps are placed at the end of an air hose and provide more speed at the end of the air hose. In addition, the variably adjustable outlets allow for better control of the climate at the center aisle.
Traditionally AC fans are applied in greenhouses. Enerdes has these available for you and can deliver them quickly in any desirable amount.
We are also the exclusive supplier of EC fans for greenhouses and horticulture companies. EC fans have been developed to be an improvement on AC fans and they have many advantages as stated below:
Axial fans are suitable for low pressure systems, like circulation or recirculation fans in the greenhouse area. These fans are also used for radiation under the gutters, which is important to avert plant diseases and mold development. As well as for air distribution hoses, or air ducts, which improve the air flow and homogeneous climate in your greenhouse even more.
Radial fans are suitable for high pressure systems.
EC fans can be controlled by a computer program or a more simple control cabinet. This will allow you to set your fans at a variable speed and control each fan or each group of fans individually. It is important to adjust the fan speed based on information from temperature differences, relative humidity levels and air pressure measured by sensors placed at different locations in your greenhouse. If desired, Enerdes can provide you with a complete system that includes