An anodizing line dries parts with 35,000 m3/h of 70 C exhaust containing moisture. EN159 preheated intake air with a plate exchanger.
The Challenge
The dryer needed warm intake air. Exhaust moisture was high, so recovery had to avoid returning humid air to the product zone.
Why Plate Air-to-Air Recovery
Plate sensible recovery keeps streams separate and handles moist exhaust without carry-back. A rotary wheel was ruled out to prevent humidity transfer into the supply.
The EN159 Solution
EN159 BXB plate module, 35,000 m3/h, intake 22 C raised to 50 C, stainless plates resistant to the anodizing atmosphere.
Measured Results
- Recovered heat: about 0.5 MW
- Intake preheated from 22 C to 50 C
- Energy cut by 30 percent
- Estimated payback: 16 months
Compliance and Selection Notes
Sensible-only plate recovery, separated streams. No rotary wheel due to humidity transfer risk.
Frequently Asked Questions
Does humidity cross the plate?
No. Only sensible heat transfers through the wall; vapour stays in the exhaust stream.
Material choice?
Stainless plates resist the anodizing atmosphere better than coated aluminium.
Related Guides and Tools
Plate Heat Exchangers · Industrial Dryer Heat Recovery · Drying Heat Recovery · Contact EN159
Get a Site-Specific Recovery Estimate
Talk to an EN159 application engineer about your aluminium anodizing exhaust stream. Call 15753355505 or visit our contact page for a site-specific recovery estimate.