What is an evaporative air cooler? How do they work?
The evaporative cooling system does not cool the air inside the greenhouse. Instead, it draws fresh air from outside and disperses it into the greenhouse interior, thereby creating valuable air circulation.
The evaporative cooling system employs fan and pad technology. This method involves using an exhaust fan to draw outdoor air into the greenhouse. As the air passes over the water-cooled pads, it is cooled and then distributed throughout the greenhouse at the crop level. This results in a continuous flow of fresh cold air, while reducing the accumulation of warm air inside the building.
The commercial marsh cooler is completely sealed and does not require additional pumps, filters or internal pipes. However, growers need to ensure a continuous connection with the water supply of their greenhouses.
Equally important is that the operators must obtain systems of the appropriate size to ensure that their commercial swamp coolers operate as efficiently as possible.
Does the evaporative cooler operate effectively in high humidity conditions?
The evaporative cooling system works better when the relative humidity is lower. Therefore, these settings are most effective in drier regions. This system can reduce the air temperature by up to 20 degrees in drier environments. However, this effect decreases as the humidity level of the outdoor climate increases.
The commercial swamp cooler causes the evaporated water to be released into the air. If the greenhouse is already located in a humid and hot environment, the cooled air by water will lead to excessive humidity inside the greenhouse. Excessive humidity can be detrimental to crops and, in many cases, create ideal conditions for the reproduction of diseases.
