The wet end of the paper machine produces most of the heat and moist air leaks into the machine hall. Thus the wet end exhaust plays a key role as far as the machine hall air flow dimensioning is considered.
The dryer section air systems consist of many important components that affect paper quality, productivity and paper machine runnability. Therefore, the highest possible knowledge of – and experience in – paper drying theory and paper machine technology is essential. TM Systems possesses both.
Too low machine hall temperature combined with high humidity causes condensation and deterioration of your building and machinery. Too high machine hall temperature and humidity decreases the alertness of machine operators.
Case: Mondi Syktyvkar, Russia. HVAC for Pulp Dryer Building.
To improve the machine room ventilation in the pulp dryer building and in the control room. To prevent condensation on the inner roof especially during cold winter months with temperatures lower than -35˚C.
Heat Recovery System
Case: BillerudKorsnäs, Skärblacka: PM9 air system rebuild.
The BillerudKorsnäs Skärblacka PM9 machine hall ventilation system needed updating. The amount of supply air was insufficient. The air balance and working conditions needed a new supply air system and a heat recovery system.