Adiabatic cooling
Adiabatic cooling (evaporative cooling) is a building block for ecologically and economically cutting-edge technology in air handling construction. Our HANSA Blue Line ASB+ includes a double cross-flow plate heat exchanger. The cooling of the outside air achieved is up to and exceeding 12K. Consequently, the recommended temperature difference between the outdoor and indoor temperature of 6K can generally be achieved.
Function
When cooling is required, the plate heat exchanger is sprayed with highly atomised water on the exhaust air side, and the exhaust air is cooled by adiabatic humidification of the air. This cooled exhaust air flows through the exchanger, transferring the cooling capacity from the exhaust air side of the plate heat exchanger to the outdoor/supply air flow. Due to the principle of indirect adiabatic cooling described above, the absolute humidity of the supply air is not increased.
The achievable cooling capacity is essentially a function of the outside and exhaust air temperature and the exhaust air humidity. Of course, the efficiency of the selected heat exchanger also plays a role. With our ASB+ system, spraying only one side of the double plate exchanger can achieve a temperature reduction of more than 12K in the outside air temperature. Moreover, this is done with a simple design, low water consumption and a robust system – and without having to accept further pressure losses.
Advantages of the HANSA ASB system
- The HANSA ASB system is rigidly mounted and, consequently, maintenance-free
- The spray bar is arranged plane parallel relative to the heat exchanger, ensuring that uniform wetting and, consequently, evaporation takes place across the inlet cross section
- Optimised distribution of the water is achieved with low consumption
- No circulating water, therefore no microbial growth
- No additional pressure loss
- We offer an all-in-one solution with independent and cost-effective control and cleaning equipment
