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8. Experimental analysis of convective drying of paper and board.

Author

Sampath, Koushik, Reynolds, Leonard, Huang, Hua-Jiang, and Ramaswamy, Shri

Subjects
CARDBOARD, NANOFLUIDICS, MASS transfer coefficients, CONVECTIVE flow, AIR flow, MASS transfer, YIELD stress, ATMOSPHERIC temperature
Abstract

Conventional multi-cylinder drying of paper and board involves a mixture of conductive drying from steam-heated dryer cylinders and convective drying by the flow of heated air over the surface of the paper web in the pockets. Pocket ventilation is a critical component in assisting heat and mass transfer during the drying process but is the primary contributor toward removing evaporated water from the web. Air temperature, velocity, and humidity are critical parameters involved in the convective drying process. This paper covers an experimental study involving the design and development of a small lab-scale setup for convective drying of various grades of paper and board, monitoring multiple parameters like paper temperature, moisture content, air humidity, temperature, and velocity measured in situ as the drying proceeds with continuous and accurate sampling capabilities for all parameters in the sample and the system. Instantaneous drying rates, heat, and mass transfer coefficients were also deduced for every time step till the paper completely dried. Furthermore, the coefficients obtained were also reported in the form of dimensionless correlations, and the results were compared against traditional correlations used in the modeling of paper drying. This data will be useful in process development, modeling, design, and the paper drying process simulation. [ABSTRACT FROM AUTHOR]

Published
2024
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29. Reaction Kinetics of the Hydrothermal Treatment of Lignin

Author

Zhang, Bo, Huang, Hua-Jiang, Ramaswamy, Shri, Mulchandani, Ashok, editor, Aizawa, M., editor, Arnold, M. A., editor, Bachas, L., editor, Bachmann, T. T., editor, Belkin, S., editor, Blanch, Harvey W., editor, Cha, H. J., editor, Chuan-Ling, Q., editor, Da Silva, Nancy A., editor, DeLisa, M., editor, Deshusses, M., editor, Dordick, J. S., editor, Eldefrawi, M. E., editor, Gu, M. B., editor, Jain, R. K., editor, Karanth, N. G., editor, Kelly, R., editor, Klibanov, A. M., editor, Krull, U. J., editor, Ladish, M. R., editor, Lee, K., editor, Lee, Y. Y., editor, Ligler, F. S., editor, Linhardt, R., editor, Pandey, A., editor, Pishko, M., editor, Renugopalakrishnan, V., editor, Ryu, D., editor, Seibert, M., editor, Tan, W., editor, Ueda, Mitsuyoshi, editor, Varfolomeyev, S. D., editor, Xu, J. -H., editor, Wang, P., editor, Wyman, C. E., editor, Zhao, H., editor, Chen, Wilfred, editor, Csoregi, Elisabeth, editor, Murhammer, David W., editor, Singh, Anup K., editor, Mulchandaui, Priti, editor, Adney, William S., editor, McMillan, James D., editor, Mielenz, Jonathan, editor, and Klasson, K. Thomas, editor

Published
2008
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36. Student Peer Teaching: An Innovative Approach to Instruction in Science and Engineering Education.

Author

Ramaswamy, Shri, Harris, Ilene, and Tschirner, Ulrike

Abstract

Reports the results of a pilot study in a senior paper science and engineering class of an innovative instructional method designed to foster student problem solving and in-depth learning of material, namely student peer teaching. Reviews literature focusing on active learning methods and describes the method for student peer teaching. (Author/SAH)

Published
2001

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