DAMA^®

Energy-Efficient, Versatile and Reliable Indirect Evaporative Cooling

What is DAMA and how does it work?

The core technology of HMX is the next-generation DAMA heat exchanger. It is highly optimized for Indirect Evaporative Cooling. DAMA stands for ’Dry Air and Moist Air’. DAMA is a crossflow, plate-type polymeric exchanger.

DAMA has warm primary air stream flowing in the dry channels. The secondary air stream flows on the wet channels of DAMA. The primary (supply) air stream exchanges heat through the thin separating wall with a thin film of water on the wet side. The heat rejected by the primary air enables evaporation of the thin water film, and in the process, the primary air is cooled without the addition of moisture. The secondary (exhaust) air stream is in direct contact with the water film and carries away the moisture. Thus, it becomes humid and is exhausted. Thus Indirect Evaporative Cooling in DAMA is purely a sensible cooling process.

DAMA helps to save energy

DAMA (Indirect Evaporative Cooling) based systems are ideal to cool both industrial and commercial buildings. 

DAMA is designed to provide significant energy savings in cooling. In some cases, using DAMA (Indirect Evaporative Cooling) with a conventional or Direct Evaporative Cooling pad in a compressor-less system (Indirect Direct Evaporative Cooling) can completely replace air-conditioning systems with as little as 40% of the energy consumed by air-conditioning alone.

When used in conjunction with a direct expansion or chilled water cooling coil, the use of DAMA (Indirect Evaporative Cooling) reduces the cooling load requirements required to pre-cool outdoor air (Indirect Evaporative Cooling based TFA/Hybrid AHU).

An Indirect Evaporative Cooling based TFA can save up to 26% energy when compared with a conventional TFA.

An Indirect Evaporative Cooling based Hybrid AHU can save up to 24% energy when compared with a conventional AHU even while supplying 3x fresh to air-conditioned spaces.