A mine refuge chamber required conditioned air at 10,000 m3/h during emergency occupancy. EN159 supplied a compact plate exchanger to trim heating and cooling load.
The Challenge
The chamber must hold a safe atmosphere for 96 hours. Conditioning 10,000 m3/h from ambient extremes used large battery and heater capacity. Recovery reduced that load.
Why Plate Air-to-Air Recovery
A small plate exchanger recovers sensible heat between supply and exhaust with no power draw beyond the existing fans. For a life-safety space, static and simple is preferred over rotating devices.
The EN159 Solution
EN159 BXB plate module, 10,000 m3/h, 68 percent effectiveness, sized to fit the chamber air handler.
Measured Results
- Recovered heat: about 60 kW
- Conditioning load cut by 40 percent
- Longer battery-backed runtime
- Estimated payback: 20 months
Compliance and Selection Notes
Static plate recovery, separated streams, no rotation. Supports life-safety duty.
Frequently Asked Questions
Does it need power?
Only the existing ventilation fans. The plate itself is passive.
Why plate and not heat pipe here?
At this small flow, a plate core is the most compact and cost-effective static option.
Related Guides and Tools
Plate Heat Exchangers · Mine Ventilation Heat Recovery · Heat Exchanger Selection Guide · Contact EN159
Get a Site-Specific Recovery Estimate
Talk to an EN159 application engineer about your refuge chamber exhaust stream. Call 15753355505 or visit our contact page for a site-specific recovery estimate.