The two systems are installed invisibly in
the substrate where the coffee trees are planted.
In the left picture the container for
the system left of the path is still visible, the other container right of the path is already
hidden below 2 cm Leca. The right picture shows the container open with the pump module,
control box and the magnetic valve for water entry which allows individual control.
Both systems are connected to a source of de-hardened water in the
technical area of the building.
The pressurized water provided by the pump modules is fed to the fogging
units by means of 6 mm high pressure PVC hoses which are connected to nozzles holders in
The blowing direction of the nozzles was individually adjusted so that
the foliage of the trees is being humidified from below.
The amount of humidification is controlled in interval mode (fog, pause,
fog, pause, ...) individually for each part solely on time basis.
For protocoling the operating parameters an electronic data logger was
"hidden" in the foliage.
The logger can store up to 16000 values for temperature
The stored data can be read out from time to time to a PC for further
evaluation of operating parameters.
Result : We were able not only to see
to a "survival" of the delicate trees, the responsible garden specialist was impressed
with the additional growth which followed installation of the systems.
When we compared the investment needed for the system it was found
that the total costs of the system - including water de-hardening, data logger, etc...) amounted
to approximately one third of
all comparable offers which were submitted.
- 2 separate plant areas with coffee trees, Bananas and Philodendrons
- 2 individual control circuits with one "exotic"-
fogging plant each, 230V, 200W
- 18 fogging nozzles typesK-100 and K-150, operating pressure 20
- Water : de-hardened tap water with 3 ° dH