Adiabatic cooling for dry coolers and remote condensers

HYBRID HSS

Water is sprayed evenly in the air at the entrance to the exchanger

SPRAY

Water is sprayed into the air before entering the exchanger surface

INDUSTRIAL PADS

Water evaporates on a panels at the inlet to the heat exchanger

Adiabatic systems are typical solutions or accessories for dry coolers or liquid coolers or for remote condensers with appropriate equipment design and corrosion protection. By increasing the relative humidity of the air passing through the heat exchanger, heat is exchanged during the evaporation of water and the latent heat makes it possible to lower the temperature of the air entering the exchanger by 5°K to 10°K, depending on the technology.

The choice of solution is crucial for heat transfer efficiency

When selecting adiabatic cooling, in addition to the cooling capacity, the following should be considered:

expected operation time of the adiabatic system
level of additional relative air humidity
possibility of changing % of saturation of humid air
level of air temperature reduction

Selection has economic and service implications and consequently affects:

investment cost of the solution
operating cost, especially energy and water consumption
time of use and necessity of additional corrosion protection of the exchanger surface
space occupied by equipment (increase of distance to avoid the effect of commingling)