Hybrid OXYCELL application

This is an example of an air-handling unit combining OXYCELL® technology, conventional mechanical and direct evaporative technology to provide set-point cooling in the most energy efficient manner, achieving a reduction in energy consumption of 50 up to 90% versus conventional mechanical cooling systems:

Hybrid OXYCELL application example

  1. Heated and previously dehumidified indoor air returns to the wet (secondary) channel of the OXYCELL.
  2. Hot and humid outdoor air enters the dry (primary) channel of the OXYCELL.
  3. Water will be forced to evaporate, hereby saturating the secondary airstream.
  4. The evaporation process extracts heat from the primary airstream.
  5. Pre-cooled air is dehumidified and cooled down further by the evaporator coil, and supplied to the indoor environment.
  6. Humidified waste air is supplied to the condenser coil, hereby maximising the compressor efficiency.

 

Below is a summary of the performance data if we would apply our hybrid OXYCELL® technology for three different cities in the Middle East with climates ranging from dry to humid:

 

City

Kuwait City

(Kuwait)

Jeddah

(Saudia Arabia)

Dubai

(United Arab Emirates)

Outdoor humidity Low to moderate Moderate Moderate to high
Technology OXYCELL Dew Point Cooling OXYCELL IEC-based Hybrid Cooling OXYCELL IEC-based Hybrid Cooling
Method Comfort cooling / ventilation Set point cooling / ventilation Set point cooling / ventilation
Conditioned space 100 m2 100 m2 100 m2
Heat load Up to 100 W/m2 Up to 100 W/m2 Up to 100 W/m2
Fresh air ventilation rate Up to 10 times / hour Up to 8 times / hour Up to 8 times / hour
       
Power consumption for the end user 1853 kWh / year 9491 kWh / year 9351 kWh / year
Water consumption for the end user 103 m3 / year 87 m3 / yearr 95 m3 / year
Water consumption for the generation of electricity 4 m3 / year 22 m3 / year 21 m3 / year
Power consumption for the desalination of water 412 kWh / year 348 kWh / year 380 kWh / year
       
Power consumption for the end user when using conventional air conditioning technology 19302 kWh / year 20979 kWh / year 22683 kWh / year
Water consumption for the generation of electricity 44 m/ year 48 m/ year 52 m/ year
       
Energy savings for the end user 91% 55% 60%
Water savings for the generation of electricity 91% 55% 60%

 

The following graph gives a comparison of the total power consumption of three different technologies for all three cities:

 

Comparison performance data

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