Recovery of heat from the exhaust air in balanced ventilation systems and it's efficient transfer to the supply fresh air offers major potential for energy savings, contributing significantly to building energy efficiency and the reduction of carbon emissions...
Recuperative Plate Heat Exchangers
No moving parts, built up of alternating layers of plates through which the heat is transferred between the separated supply and exhaust air streams.
- Corrosion resistant heat transfer plates.
- Extended surface plate design for high heat transfer efficiency.
- Total separation of supply and exhaust airstreams ensuring no cross contamination.
- Efficiency function of plate gaps and lengths, and air flow rate.
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Energy savings up to 80% |
Energy savings up to 95% |
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Two heat exchangers can be arranged in a cross / counter flow pattern to increase efficiency. |
Rotary Heat Exchangers
Rotary heat exchangers are also employed as a well proven and efficient means of heat recovery providing up to 80% energy savings. The rotating wheel (rotor) is made up of an air permeable heat transfer matrix which picks up heat from the exhaust air and releases it as the wheel passes through the cooler supply air. Depending on the air conditions, and using desiccant coated rotors the heat recovery wheel can also transfer moisture providing both sensible and latent energy recovery.
Run–around Coils
A run around coil heat recovery system consists of two matched coils, one located in the exhaust contaminated air stream and the other in the supply fresh air stream. The heat exchange medium (usually water) is pumped in a continuous loop through the coils in a single direction at a constant rate.
