OptiAir Recovery

Heat recovery systems for energy efficient paper and board making

Heat recovery plays a crucial role in energy-efficiency.

Heat recovery plays a crucial role in energy-efficiency and in creating stable drying conditions. It provides excellent opportunities for reducing costs and increasing profitability. OptiAir Recovery is a part of Valmet’s OptiAir family which is designed for optimal and controlled drying conditions and working environment for paper and board machines.

Replacing primary energy

Lower fresh water consumption

Sound attenuation

Automatic cleaning system

Heat recovery reduces energy costs


Main purpose of heat recovery system is to replace primary energy with recovered heat from the process in an economically profitable way. Total heat recovery in a modern paper or board machine can be over 50 MW. This is equivalent to 86 tsteam/h, therefore the energy flows are significant. It is important to utilize this energy efficiently. OptiAir Recovery heat recovery solutions provide excellent possibilities for optimizing the energy and air flows in paper and board making.


Recovered heat can be used to heat:

If you suspect that your heat recovery system is not performing properly, let our process survey group analyze your system and recommend what can be done for the machine’s energy efficiency.


Main benefits of OptiAir Recovery system:

  • recovered heat replaces primary energy
  • lower fresh water consumption with closed process where evaporated water is returned back to the process
  • heat recovery equipment efficiently reduces environmental noise level
  • an automatic cleaning system takes care of the daily cleaning
Want to talk to our process ventilation experts?

Want to talk to our process ventilation experts?

If you wish to get further information like technical specifications, need a quotation, or wish to discuss different solutions, fill in the contact form and our experts will contact you shortly.

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How to plan a successful rebuild?

Rebuilding a paper or board machine can improve the competitiveness of your business and your processes. But where do you start? Download our e-book to learn how to develop a winning rebuild concept, how to minimize rebuild related risks, and how to ensure smooth ramp up to full production.

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