Energy optimization is priority today in all sectors of fabrication including tissue and towel. The Yankee drying system on the tissue machine represents an interesting savings opportunity since both natural gas and steam are utilized therefore significantly impacting energy costs.

On the Yankee Dryer Hood (aka the « air side ») the absolute humidity of the exhaust air can be maximized by minimizing the exhaust volume, that is, by reducing it to the point at which the pressure inside the hood brings it to a slight spill condition. Too much spill creates undesireable operating conditions in the machine room.