Modeling drying of three-dimensional pulp molded structures. Part I, Experimental program

Abstract

Researchers at the USDA Forest Products Laboratory have developed a new three-dimensional structural panel, called FPL Spaceboard. This panel is formed using a U.S. patented three-dimensional mold capable of using a variety of fibrous materials with either the wet- or dry-forming process. Structurally, the panel departs from the traditional two-dimensional panel by integrally forming vertical ribs and face in one structure. In the literature, significant work has been conducted to model drying of two-dimensional panels, but no known work has been done on such a three-dimensional integral structure. To optimize the drying efficiency and structural performance for this type of panel, there is a need to understand the complex drying process that occurs within this new panel. This paper is the first of three to discuss the modeling work. In this paper, the experimental data from two drying processes are presented. The first drying process, Condebelt, was developed by Jukka Lehtinen, Valmet, FINLAND. The second process used was two-sided drying in a conventional hot press.

Citation

Nyist, Heike.; Hunt, John F.; Tamasy-Bano, Margit. 1998. Modeling drying of three-dimensional pulp molded structures. Part I, Experimental program. [Drying `98 : proceedings of the 11th International Drying Symposium (IDS `98), Halkidiki, Greece, August 19-22, 1998. Volume A. S.l. : s.n., 1998].:p. 349-356 : ill.