This Technical Information Paper provides methods for evaluating the performance of high velocity air impingement dryers used in the manufacture of paper products. This TIP provides five methods of evaluating impingement dryers, each with their own limitations and advantages. All five methods should be utilized for completeness.

Fig. 5. Hood energy balance schematic

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Date of Publication: June 30, 2025

Working Group Members:
Mark Harrison, Chair, Southern Erectors, Inc.
Oscar Lopez Mesas, Valmet
Raffaele Malutta, Valmet
Stefano Pecchia, Toscotec
Greg Wedel, Kadant Johnson (Retired) 

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