Thermal screens greenhouse cooling – are they effective
Heat is always a problem in greenhouses during summer months and even during winter in some areas. High temperatures reduce yields, quality and increases pest...
Category Archives: Ventilation
Evaporative pads – maintenance in commercial hydroponics
The installation of new evaporative pads is expensive. The material should last at least two years if not more. With good regular maintenance, evaporative pads...
Cooling a greenhouse with evaporative pad-and-fan
Pad-and-fan systems, also called evaporative pad-and-fan systems, is the most common method of cooling a greenhouse in warm weather regions. Although not optimal, it is better...
Natural ventilation in humid regions.
Ventilation of greenhouses in humid tropical areas presents the grower with a complete new set of problems. There are various methods available but none have...
Natural ventilation of single span tunnels in arid regions.
Arid regions are characterized by low rainfall, low humidity and high temperatures during summer. The largest problem is temperature during the day time inside the...
What is natural ventilation
Ventilation is the exchange of air inside the greenhouse with air taken from outside the greenhouse using either natural or forced methods. Ventilation efficiency is...