Search
Use the search bar or filters below to find any TAPPI product or publication.
Filters
Content Type
Publications
Level of Knowledge
Committees
Event Type
Collections
Production of Neutral Saltcake in Sub-Atmospheric Chlorine Dioxide Plants, 2010 TAPPI PEERS Conference
Production of Neutral Saltcake in Sub-Atmospheric Chlorine Dioxide Plants, 2010 TAPPI PEERS Conference
News
Member Spotlight: Jamel Lawrence
Member Spotlight: Jamel Lawrence Jamel Lawrence Professional Member North Canton, OH For 15 years, Jamel Lawrence has been working his way up the Lubrizol Advanced Materials ladder, but it all
Conference papers
Valorization of Willow Lignin Recovered in a Pilot-scale Biorefinery Based on Hot Water Extraction, 19IBBC
Valorization of Willow Lignin Recovered in a Pilot-scale Biorefinery Based on Hot Water Extraction, 19IBBC
2021 TAPPI Selects Young Professional of the Year
2021 TAPPI Selects Young Professional of the Year Emerging leaders represent International Paper, Jacobs, PCA and WestRock TAPPI is pleased to announce five recipients of this year’s Young
Experimental study and prediction of two-phase flow pattern distribution diagrams in multi-channel cylinder dryer, TAPPI Journal July 2023
ABSTRACT: The multi-channel cylinder dryer (MCD) is designed to improve heat transfer. Although there are numerous research studies on the pressure drop, heat transfer characteristics, and flow pattern in static state of MCD, there is little research on the flow pattern in the rotating state. In this paper, the distribution of flow pattern in MCD under different rotating speeds and steam mass flow rates is studied. Furthermore, the logistic regression method (LR) is used to predict the flow pattern diagrams. The results show that in the front section of the flow channel, the flow pattern is basically annular flow, which is not affected by mass flow rate and rotating speed. On the other hand, wavy flow, vortex flow, slug flow, and bubble flow can be observed when the fluid enters the middle and the end section. The higher the rotating speed and the steam mass flow rate, the more the flow pattern tends to be an annular and wavy flow. At the end of the passage, the flow pattern is mainly slug flow. The predicted flow pattern diagrams are in good agreement with the experimental result, and to obtain an effective flow pattern in the middle and the end section of the flow channel, the influence of increasing rotating speed is greater than that of increasing steam mass flow rate. However, the specific rotating speed, steam mass flow rate, and other parameters should still be set by combining with the actual situation. This work can provide some references for the further study of MCD flow characteristics.
Books
Cooling Water Treatment Principles and Practices: Charts and
Cooling Water Treatment Principles and Practices: Charts and Notes for Field Use
Optimum Use of H2O2 in Kraft Pulp Delignification, 1996 International Pulp Bleaching Conference Proceedings
Optimum Use of H2O2 in Kraft Pulp Delignification, 1996 International Pulp Bleaching Conference Proceedings
Mechanism of Retention of Metal Cations in Linerboard and Never Dried Pulps
Mechanism of Retention of Metal Cations in Linerboard and Never Dried Pulps
Predicting Print Mottle: A Method of Differentiating Between
Predicting Print Mottle: A Method of Differentiating Between Three Distinctively Different Types of Mottle: Backtrap Mottle, Water Sensitivity Mottle, and..., 1994 Coating Conference Proceedings
Controlling Consistency of Paper Machine Stock and Broke Systems, 1997 Papermakers Conference Proceedings
Controlling Consistency of Paper Machine Stock and Broke Systems, 1997 Papermakers Conference Proceedings