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Journal articles
Open Access
Pressure drop characteristics of steam condensation flow in triangular channels for multi-channel cylinder dryers, TAPPI Journal September 2026

ABSTRACT: This study investigates the condensation pressure drop characteristics of steam in the channels of multi-channel drying cylinders, which remain insufficiently understood. An experimental system was established using a horizontal mini-channel with a triangular cross-section and a hydraulic diameter of 4.09 mm. Flow visualization combined with a high-precision data acquisition system was employed to systematically examine the effects of steam mass flux (10•60 kg/(m²·s)), inlet temperature (110°C•140°C), and cooling water flow rate (100•500 kg/h) on the frictional pressure drop during condensation. The results indicate that the two-phase frictional pressure drop increases with rising steam mass flux but decreases with increasing saturation temperature, while the effect of cooling water flow rate becomes more pronounced under lower temperature conditions. In addition, several existing two-phase flow pressure drop correlations were evaluated against the experimental data. Based on a comparative assessment of eight existing correlations, a new predictive model was developed through regression analysis, achieving a mean absolute percentage error (MAPE) of 19.56%. These findings elucidate the pressure drop mechanism of steam condensation in triangular channels and establish a high-precision predictive model, providing theoretical guidance and a critical tool for the engineering design and energy consumption optimization of multi-channel drying cylinders.

Journal articles
Open Access
Prediction of Handsheet Tensile Strength by Computational Simulation of Structure, TAPPI JOURNAL January 2010

Prediction of Handsheet Tensile Strength by Computational Simulation of Structure, TAPPI JOURNAL January 2010

Journal articles
Open Access
Characterizing Carbonaceous Biochemical Oxygen Demand Load Reductions from Pulp and Paper Mills for Activities Related to Total Maximum Daily Loads, TAPPI JOURNAL January 2009

Characterizing Carbonaceous Biochemical Oxygen Demand Load Reductions from Pulp and Paper Mills for Activities Related to Total Maximum Daily Loads, TAPPI JOURNAL January 2009

Journal articles
Open Access
Use of thermomechanical pulp fibers from waste woods for making eco-friendly cushioning material, TAPPI JOURNAL July 2010

Use of thermomechanical pulp fibers from waste woods for making eco-friendly cushioning material, TAPPI JOURNAL July 2010

Journal articles
Open Access
Influence of machine-side filaments and jet-to-wire speed ratio on the flow through of a forming fabric, TAPPI JOURNAL July 2010

Influence of machine-side filaments and jet-to-wire speed ratio on the flow through of a forming fabric, TAPPI JOURNAL July 2010

Journal articles
Open Access
Pilot-scale combustion studies with kraft lignin in a powder burner and a CFB boiler, TAPPI JOURNAL June 2010

Pilot-scale combustion studies with kraft lignin in a powder burner and a CFB boiler, TAPPI JOURNAL June 2010

Journal articles
Open Access
Comprehensive evaluation of kraft pulp properties from fast-growing woods, TAPPI JOURNAL June 2010

Comprehensive evaluation of kraft pulp properties from fast-growing woods, TAPPI JOURNAL June 2010

Journal articles
Magazine articles
Open Access
Editor's Note: An Ideal Raw Material for Pulp and Paper, TAP

Editor's Note: An Ideal Raw Material for Pulp and Paper, TAPPI JOURNAL March 2010

Journal articles
Open Access
Impact of High-Yield Pulp Substitution on the Brightness Stability of Uncoated Wood-Free Paper, TAPPI JOURNAL March 2010

Impact of High-Yield Pulp Substitution on the Brightness Stability of Uncoated Wood-Free Paper, TAPPI JOURNAL March 2010

Journal articles
Open Access
Water-Uptake Studies of Dry, Mountain Pine Beetle-Infested, Grey-Stage Lodgepole Pine Sapwood Chips, TAPPI JOURNAL March 2010

Water-Uptake Studies of Dry, Mountain Pine Beetle-Infested, Grey-Stage Lodgepole Pine Sapwood Chips, TAPPI JOURNAL March 2010

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