Paper and tissue machines and machine rooms require a tremendous amount of heated supply air to maximize production throughput, maintain high finished product quality level, protect assets and provide a safe and comfortable working environment for staff. Heat recovery involves capturing waste heat and using it to pre-heat supply air for systems such as:
- dryer runnability components
- general hood make-up air
- building ventilation air
- roof supply air

Recovering energy from all viable heat sources is essential for staying competitive in the paperboard market and represents an effective path toward reduced greenhouse emissions. This presentation provides an overview on the most common heat sources and heat sinks along with the functionality of various types of heat recovery equipment. General guidelines will be presented that can help identify heat recovery project that have the greatest impact and shortest return on investment.