...
While fogging and pad and fan cooling operate on the same principle, fogging can provide some advantages over pad and fan, such as: more uniform cooling can be achieved over the greenhouse area, and simpler greenhouse designs, or retro-fitting are possible with fogging, unlike pad and fan greenhouses. However, the main challenge is that if the quality of water used for fogging is not maintained, it could easily lead to clogging of the nozzles with particulate matter or calcium deposits.
Contribution to energy balance and resource use of
...
greenhouses:
The evaporative cooling acting in fogging systems reduces the greenhouse temperature, and can be used to regulate humidity.
...
The main resource consumption is that of water, which may pose a problem in water-scarce areas.
...