A dryer’s energy consumption mainly goes to internal pressure drops and the regeneration process. The key for designing desiccant dryers is therefore to keep the pressure drop as low as possible, and to develop technologies that allow regeneration to be as efficient as possible. Atlas Copco’s dryers are designed to have a very low internal pressure drop below 0.2 bar/2.9 psi, and provide the most efficient regeneration process.
Superior energy efficiency
Low pressure drop saves energy and reduces operating costs
Atlas Copco’s BD⁺, XD⁺, CD⁺, and, AD⁺ desiccant dryers incorporate state-of-the-art energy management control with built-in Dewpoint Dependent Switching. This makes the dryers more efficient, leading to energy savings of up to 90%, depending on installation and usage. The principle is simple. Although the regeneration time remains constant, the delay before switching from one tower to the other is controlled via the dew point sensor. As soon as the target dew point is reached, the dryer cycle that was on hold will resume by switching to the dry tower. Delaying cycles in this way leads to major energy savings. This occurs when operating conditions are lower than reference, or the flow fluctuates below maximum nominal load.
Save energy and reduce operating costs
Efficient regeneration
Different models for your needs
Our AD 360⁺ – 3500⁺ range is a strong choice for applications with medium to high yearly running hours, where stable performance and lower energy consumption at partial load are key.
Our CD 360⁺ – 1600⁺ range offers the most efficient heatless drying solution for low running hours, using dewpoint dependent switching and a low‑pressure‑drop design to minimize purge air use and energy consumption.
Our BD 360⁺ – 3500⁺ blower‑heated dryer range features a highly energy‑efficient design, combining ZeroPurge cooling options, Smart Cycle control, and low‑watt‑density stainless steel heaters to deliver significant energy savings, especially at high yearly running hours.
Our XD 550⁺ – 3600⁺ range is a heat of compression dryer designed for oil‑free compressors, using recovered compressor heat and dewpoint dependent switching to deliver exceptional energy efficiency at both low and high yearly running hours.
BD Heat Accumulator option for higher energy efficiency
Heat accumulator technology
- Reuses stored regeneration heat to reduce energy consumption by up to 18 % per cycle (versus open loop), especially beneficial for high‑runtime applications.
Reduced heater load
- Pre‑heated regeneration air lowers heater operating time, cutting overall energy consumption.
Optimized for high running hours
- The HA design delivers consistent energy savings in applications with continuous or high annual operating hours.
