Rotary Heat Exchanger vs. Plate vs. Heat Pipe: Selection Comparison and Application Scenarios
Three forms are commonly used for industrial exhaust-air energy recovery, each suited to different operating conditions:
| Type | Heat Recovery Efficiency | Advantages | Limitations | Typical Scenarios |
|---|---|---|---|---|
| Rotary | Sensible 70–85% / Total 60–75% | Recovers both sensible + latent heat; continuous for large airflow | Slight cross-contamination (mitigated by double sealing) | Fresh-air HVAC, drying, coating |
| Plate | Sensible 60–80% | No moving parts, no cross-contamination | Sensible heat only; prone to condensation and clogging | Cleanrooms, cross-contamination-sensitive occasions |
| Heat pipe | Sensible 50–70% | Remote heat transfer, no power required | Sensible heat only, lower efficiency | Small airflow, separated spaces |
Hard-and-Fast Selection Rules
- Need simultaneous humidity control (latent-heat recovery) → choose a rotary heat exchanger.
- Clean/sterile, zero cross-contamination → choose plate type (sensible heat).
- Large-airflow fresh-air pre-cooling/pre-heating → rotary offers the best cost-performance.
- Low-dew-point drying (dew point < -10°C) → rotary dehumidifier.
Unsure about selection?Submit operating parametersand our engineers will provide a calculation report.
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