Applications; Main Advantages Of Humifog Multizone - Carel humiFog multizone User Manual

humiFog for AHU/ducts is suitable for all applications in which the air
can be humidified and/or cooled adiabatically, atomising demineralised
water. Below are some possible applications of humiFog:
•
office buildings
•
hotels and call centers
•
printing and paper industries
•
cleanrooms
•
libraries and museums
•
textiles industry
•
food industry
•
direct/indirect adiabatic cooling
•
timber industry
•
other industrial applications.
The possibility of using an atomising rack for indirect adiabatic cooling
is especially interesting: the air to be discharged is cooled adiabatically
(bringing it to saturation) and is then used to cool the fresh outside air
using an air-air heat exchanger, as shown in the following figure.
4
3
2
HE
1
Fig. 6.a
Key:
1.
recirculated air;
2.
exhaust air;
3.
saturated and cooled air;
4.
outside air inlet;
5.
heated exhaust air;
6.
cooled outside air;
7.
fresh air.

6.1 Main advantages of humiFog multizone

The main characteristic of humiFog for AHUs is compliance with the
European standards on air hygiene, as certified by the Institut für
Lufthygiene in Berlin, which has declared it as compliant with the
following standards:
Standard climatisation
VDI 6022, page 1 (7/2011)
VDI 3803 (02/2010)
ONORM H 6021 (09/2003)
SWKI VA104-01 (04/2006)
DIN EN 13779 (09/2007)
*: In accordance with H6020 (02/07), chapter 6.13.2 the use of steam humidifiers
or equivalent humidification systems is required in Austria.
Please note:
•
VDI6022/2006: "Hygiene requirements for ventilation and air-
conditioning systems and units"
•
DIN EN 13779: "Ventilation for non–residential buildings – Performance
requirements for ventilation and room conditioning systems"
•
DIN1946 - Ventilation and air conditioning - part 4: Ventilation in
hospitals

6. APPLICATIONS

5
6
Hospitals
DIN 1946, part 4 (12/2008)
ONORM H 6020 (09/2003) *
SWKI 99-3 (05/2003)
Tab. 6.a
Further advantages of the humiFog system include:
•
extremely low electricity consumption: around 4 Watts for each litre/
hour of humidification capacity;
•
high maximum capacity: 600 kg/h (customised versions are available
with capacities up to 5000 kg/h);
•
high precision, thanks to models with continuous modulation from
14% to 100% of maximum capacity;
•
complete distribution rack, supplied already assembled and tested;
•
extremely fine atomisation with consequently very little space required
for evaporation, due to high water pressure (25 to 75 bars);
•
optimum humidification and cooling effect in the AHU thanks to
custom racks made to measure based on the cross-section of the AHU;
•
very low maintenance requirements
•
automatic washing and emptying cycles to avoid stagnation of water
•
no dripping;
•
silent nozzles
•
modularity: one pumping unit can supply up to 6 zones
•
connectivity: humiFog can be connected to external systems, for
example BMS, using the MODBUS, TCP/IP protocols etc. (see paragraph
3.10).
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