DataVXTAPPI JournalPaper
journal article·2026-05-31

A novel dimensionless index for optimizing the thermo-hydraulic performance of steam condensation in horizontal rotating channels of a multi-channel cylinder dryer

Sha Wang, Haozeng Guo, Jianyong Wang

TAPPI Journal· Volume 25· Issue 5
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Source abstract

Abstract

The comprehensive performance of steam condensation in horizontal rotating channels, which involves a trade-off between heat transfer enhancement and flow resistance, lacks a unified evaluation criterion. This deficiency is particularly critical for applications such as a multi-channel cylinder dryer (MCD) in paper machines, where rotational operation enhances drying efficiency. To address this gap, this study introduces a novel dimensionless index, W/Eu, defined as the ratio of the dimensionless heat transfer coefficient (W) to the dimensionless pressure drop (Eu), thereby taking into account both heat transfer and flow resistance characteristics comprehensively. A functional relationship for this index was established with respect to channel spacing (Wr) and steam mass flux (G), followed by a theoretical optimization analysis.
Source: crossref · Quality: baseline

Research context

OpenAlex topics: Heat Transfer Mechanisms · Heat Transfer and Optimization · Fluid Dynamics and Thin Films

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

Xi'an Aeronautical University

Shaanxi University of Science and Technology

References (24)

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