How Dehumidification Can Cool the Greenhouse During the Summer – HortiDaily

Cooling the greenhouse during the summer months may be critical. However, for many growers, cooling is only necessary for a very short period of time, making large investments in complex cooling systems irrelevant.

One solution to this problem is to use dehumidifiers combined with cooling, as HortiDaily magazine recently reported. The following are excerpts from the original article.

Controlling Temperature and Humidity During the Summer Months

“During summer days, greenhouses absorb a lot of heat. They then need to cool down during the night to provide a balanced daily temperature average. Failing to do so may slow down growth, lead to smaller yields, and lower quality output.”

“The problem with high temperatures becomes even greater when humidity is high outside, as is common during the summer. In this case, ventilating to release moisture may lead to even higher temperatures in the greenhouse, which can harm the plants”, the DryGair team says. “So, the only effective way to control humidity in this case is to use active dehumidifiers. These extract water vapor from the air to efficiently reduce humidity in the space. By using dehumidification to control humidity, you can keep the greenhouse closed and avoid introducing more heat.”

How Dehumidification and Cooling Tie Together

“The need to both cool and reduce humidity actually holds the key to effective cooling at a relatively low cost,” they add. The company, a dehumidifier manufacturer, offers an innovative solution to this issue. All DG dehumidifiers are equipped with a patented air circulation mechanism that utilizes powerful fans to expel the treated air in all directions to reach the entire space.

“The company offers a variation on their most popular units, the DG-12 and DG-6, which allows it to cool the outgoing air. Using this system, growers can distribute cool air throughout the greenhouse without requiring ducting or complex HVAC systems. The units only require a cold water source, for example, from a chiller.”

“By combining dehumidification with cooling, you can lower greenhouse temperatures when necessary, using the same system that controls humidity. The same system can also be utilized during the winter to provide additional heat. By simply introducing hot water to the system instead of cold water, you can easily switch from cooling to heating.”