A synthetic-fabric plant exhausts 80,000 m3/h of polyester stenter air at about 150 C. EN159 recovered heat with a rotary enthalpy wheel to preheat process air.
The Challenge
Polyester stentering runs hot and exhausts large heat. Preheating incoming air cut fuel for the oven. The stream was clean enough for wheel recovery.
Why Rotary Air-to-Air Recovery
For high-temperature polyester stenter exhaust, a rotary wheel recovers sensible and latent heat at high effectiveness. Textile duty permits wheel use; a purge sector manages leakage.
The EN159 Solution
EN159 rotary wheel, 80,000 m3/h, total effectiveness 76 percent, high-temperature alloy matrix rated to 180 C with purge sector.
Measured Results
- Recovered heat: about 2.2 MW
- Process air preheated toward oven setpoint
- Fuel use cut by 29 percent
- Estimated payback: 13 months
Compliance and Selection Notes
Rotary wheel permitted for polyester stenter (not forbidden). High-temp matrix and purge sector included. Plate alternative for fibre load.
Frequently Asked Questions
Temperature limit?
The matrix is rated to 180 C, covering 150 C stenter exhaust with margin.
Why wheel over plate?
The wheel also recovers latent heat, raising total effectiveness above a sensible-only plate.
Related Guides and Tools
Rotary Heat Exchangers · Textile Stenter Heat Recovery · Drying Heat Recovery · Textile Heat Setting Plate · Contact EN159
Get a Site-Specific Recovery Estimate
Talk to an EN159 application engineer about your polyester stenter exhaust stream. Call 15753355505 or visit our contact page for a site-specific recovery estimate.