HRS-L Zero Purge Heated Regenerative Desiccant Dryers
The Aircel HRS-L (600 – 10,000 scfm) utilize externally heated atmospheric air for regeneration of the desiccant bed. This eliminates the use of compressed purge air for regeneration resulting in an overall reduction in the cost of operation. In the HRS-L the cool-down of the regenerated bed is assisted by a water cooled heat exchanger that further reduces compressed air usage. The result, only a small fraction of process air is consumed during depressurization of the offline tower. This amounts to an average process air use of < .05% of the rated capacity of the dryer.