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With climate equality in the greenhouse, the temperature and humidity in different places in the greenhouse differ as little as possible from each other. This ensures uniform growth of the crop and thus an even crop and harvest result. To create an even greenhouse climate, you need to take several steps.

Step 1: Map out the current greenhouse climate
The first step in creating climate equality is to map the current situation. To what extent is there inequality in the greenhouse climate? This can be done with the help of sensors and with a measuring box:

• Sensors: with the help of sensors you can measure temperature and humidity in different places in the greenhouse. In this way you map out where there are hot or cold spots.
• Measuring box: a measuring box measures both the greenhouse temperature and the humidity. It sends this data to the climate computer, after which the climate computer calculates the relative humidity. Based on this, the greenhouse climate can be adjusted, resulting in greater equality.

Step 2: Find out the causes of climate inequality to be able to optimize the greenhouse climate
After you have insight into where hot or cold spots exist in the greenhouse, you will find out the cause of these inequalities. The most common causes of inequality in the greenhouse climate are:

• broken windows or openings in the greenhouse
• screen gaps
• torn screens
• moisture spots due to leakage
• a heating capacity along the facade that is too small

Step 3: Address the causes of inequality
By tackling the root cause, you can eliminate inequality and create a consistent greenhouse climate. Experience shows that a small opening in the screen cloth, for example to drain moisture, can lead to large temperature differences.

Do you still have an uneven greenhouse climate after removing these causes? Then you can create equality with technical solutions.

Many growers opt for fans for this. These ensure air movement in the greenhouse, so that an equal temperature and humidity is created. Air movement also means plant activity, whereby the relative humidity in the greenhouse increases due to evaporation from the plants. This can cause problems in some crops, such as deficiency symptoms and diseases.

The Drygair is a new technical solution that is used to create climate equality. Just like fans, this installation creates air movement, but at the same time also ensures that the greenhouse air is dehumidified. By means of cold panels in the unit, the water vapor condenses on it at 30 – 60 ltr/hour (depending on the cultivation and climate conditions). This water can be reused in cultivation. The dry air is blown back into the greenhouse.

When water vapor is converted into water, energy (read: heat) is released. The energy that the unit needs to run is also reused. In practice this can result in a saving on gas of 50%! As a result, this installation fits in well with the insights of the next generation growing. More and more users are seeing the benefits. With DryGair they have a steering wheel to create a healthy and active climate.

• Read more about DryGair units as a solution for humidity
  

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