INDUSTRIAL ADIABATIC SYSTEM

Device for humidifying the intake air through adiabatic panels increasing the unit performance.

Generalities:
  • “PADS” panel used to distribute water over the unit air intake.
  • Mounted and wired electrical switchboard; a speed controller installed inside the unit (R, I, U, D) regulates the adiabatic system.
  • System drainage electrovalves.
  • Safety thermostat for the system drainage during cold months.
  • Pressure reducer to regulate the necessary pressure and valves for exhaust air regulation.
  • Multilayer UV-resistant tubes.
  • Humidity probe for ambient humidity control.

THEORY
  • Adiabatic temperature saturation is a thermodynamic property of humid air. It represents the temperature that can be achieved by air when it reaches the saturation condition through an adiabatic transformation.
  • The adiabatic saturation temperature lowers - since evaporating water removes heat – though it is still higher than the dew temperature, as evaporation itself raises the partial pressure of water vapour.
EXAMPLE
Ambient Air Condition: TAMB = 32,0°C Relative Humidity R.H. = 50%
Calculation Air Condition: TCALC = 24,6°C Relative Humidity R.H. = 92%
  • Due to the adiabatic saturation made possible by the Industrial Adiabatic System, the Refrion design model provides an increase in relative humidity of 42% (ΔR.H. = 42%) up to a maximum of 92% (R.H. = 92%).

ADVANTAGES
  • The unit can be sized according to an air inlet design temperature that is much lower than the ambient temperature (TCALC << TAMB) (see example).
  • A smaller sized unit, with a smaller heat exchanger surface can be selected.
  • The unit can be used to cool the liquid to a temperature lower than the ambient temperature.
  • The Industrial Adiabatic System combined with “EC” electronic switching fans, an “Intelliboard” PLC or with a Speed controller, lowers energy consumption, Sound Emission Levels and optimises water use.
  • No risk of legionella contamination.

OPERATING PRINCIPLES
Special panels made of corrugated cellulose sheets are placed in front of the heat exchangers and downstream of the air flow.
The panels are soaked evenly and entirely by a special distribution system. The air that passes through the panels is humidified and cooled, depending on the different operating conditions.
Thanks to this extremely efficient and reliable system, the inlet air temperature can be reduced by more than 8°K. 
EXAMPLES OF INSTALLATIONS

REFRION S.r.l. Vicolo Malvis, 1 - 33030 Flumignano di Talmassons (UD) - P.IVA 03094850231

DRY COOLER | GAMMA DRY COOLER