A Dry Cooler is a heat-rejection unit that cools a fluid by passing ambient air over finned coils with fans, without evaporating water. In data centers it consumes little or no water and enables free cooling in cool climates, but its capacity falls as air temperature rises since it is limited by the dry-bulb temperature. Adiabatic pre-cooling can boost hot-weather performance.
Category: Cooling & Environmental Control · Subcategory: Heat Rejection · Part of the AIDC Technical Terminology reference.