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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
CFD-Based Modeling of Kraft Char Beds â?¢ Part 1: Char Bed Burning Model, TAPPI JOURNAL February 2010

CFD-Based Modeling of Kraft Char Beds • Part 1: Char Bed Burning Model, TAPPI JOURNAL February 2010

Journal articles
Skills Gap Offers Good News, Bad News, Frontline Focus, Volume 6, Issue 4

Frontline Focus, April 2010

Journal articles
Tips and Tricks Using IR Cameras in Paper Mills, Frontline Focus, Volume 6, Issue 7

Frontline Focus, August 2010

Journal articles
Hydraulic Energy Thieves, Frontline Focus, Volume 6, Issue 8

Frontline Focus, September 2010

Journal articles
Improving Energy Efficiency Through Wet End Management, Frontline Focus, Volume 6, Issue 9

Frontline Focus, October 2010

Journal articles
Open Access
A novel approach to quantify spatial coating-layer formation, TAPPI JOURNAL November 2010

A novel approach to quantify spatial coating-layer formation, TAPPI JOURNAL November 2010

Journal articles
Open Access
Experimental and theoretical study of the manifold flow in a curtain coater, TAPPI JOURNAL November 2010

Experimental and theoretical study of the manifold flow in a curtain coater, TAPPI JOURNAL November 2010

Journal articles
Setpoint: Give Them Wings, November/December 2010

SetPoint: Give Them Wings, Paper360º November/December 2010

Journal articles
Over the Wire, Paper360° November/December 2010

Over the Wire...News Summary, Paper360º November/December 2010

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