目次
- GMP and HVAC codes require exhaust from containment areas to be discharged, not reused. Cross-contamination could compromise product quality. Separated cores transfer only heat, never air or particles.
- Technology Fit for pharma/cleanroom Plate (counter-flow) Excellent - zero carryover, washable Heat pipe Excellent - no moving parts, isolated streams Run-around coil Good when exhaust is remote from supply Rotary wheel Avoid - carryover risk despite purge
- Recover heat from general AHU exhaust, not containment exhaust. Pre-heat or pre-cool make-up air for gowning and support zones. Use stainless or coated cores where cleaning agents are present. Validate with the qualified person (QP) before commissioning.
- Can I recover heat from a containment booth? Only the sensible heat via a separated core on the general exhaust; the contaminated stream itself stays one-way. Does recovery affect classification? No, if the recovery core sits outside the classified zone and keeps streams separate per design.
Pharmaceutical plants and cleanrooms move huge volumes of HEPA-filtered air. Codes generally forbid recirculating exhaust that may carry contaminants, but the energy in that air can still be recovered using physically separated exchangers.
- GMP and HVAC codes require exhaust from containment areas to be discharged, not reused.
- Cross-contamination could compromise product quality.
- Separated cores transfer only heat, never air or particles.
| Technology | Fit for pharma/cleanroom |
|---|---|
| Plate (counter-flow) | Excellent - zero carryover, washable |
| Heat pipe | Excellent - no moving parts, isolated streams |
| Run-around coil | Good when exhaust is remote from supply |
| 回転ホイール | Avoid - carryover risk despite purge |
- Recover heat from general AHU exhaust, not containment exhaust.
- Pre-heat or pre-cool make-up air for gowning and support zones.
- Use stainless or coated cores where cleaning agents are present.
- Validate with the qualified person (QP) before commissioning.
Can I recover heat from a containment booth?
Only the sensible heat via a separated core on the general exhaust; the contaminated stream itself stays one-way.
Does recovery affect classification?
No, if the recovery core sits outside the classified zone and keeps streams separate per design.