A dry cooler is an air-cooled heat exchanger that dissipates heat from various processes, including cooling air compressors. In a dry cooler, ambient air is blown over a finned-tube heat exchanger, where the process fluid (in this case, typically water or a water-glycol mixture) flows through the tubes, transferring heat to the air.

Oil-Free Compressors: For oil-free compressors, the dry cooler cools the compressed air directly.
Oil-Injected Compressors: For oil-injected compressors, the dry cooler is used to cool the oil after it absorbs heat from the air during compression.

 

Maintenance: Minimal maintenance compared to water-cooled systems, as there is no water circuit involved.

Reliability: Suitable for year-round operation, even in varying ambient conditions.