Using Dynamic Programming to Obtain Efficient Kiln-drying Schedules
Keywords:Kiln drying, optimization, dynamic programming
AbstractThis paper outlines a method for determining kiln-drying schedules that is based on the optimization technique of dynamic programming. The method is described with reference to the kiln drying of cedar pencil slats, but could be extended, with appropriate adjustments, to the kiln drying of other wood materials.
Abramovitz, M., and I. A. Stegun, eds. 1964. Handbook of mathematical tables. U.S. Dept. of Commerce. National Bureau of Standards. AMS 55.nBramhall, G. 1976. Semi-empirical method to calculate the kiln-schedule modifications for some lumber species. Wood Sci. 8(4):213-222.nClaxton, H. D. 1968. A dynamic programming decision model and computer simulation of the cedar pencil slat drying process. Ph.D. dissertation, Agricultural Economics, University of California, Berkeley.nDreyfus, S., and A. Law. 1977. The art and science of dynamic programming. Academic Press, NY. 284 pp.nGorvad, M. R., and D. G. Arganbright. 1979. Development of kiln drying schedule severity indices for degrade control. Parts 1 and 2. Wood Sci. Technol. 13:137-152, 197-209.nGorvad, M. R., E. J. Subelman, A. Weintraub, and D. G. Arganbright. 1978. Use of dynamic programming to optimize kiln schedules. Technical Report 35.01.200, University of California Forest Products Laboratory.nRensi, G., and A. Weintraub. 1976. Optimal schedules in kiln drying through dynamic programming. Final Report on U.C. Coop Agreement 21-354. PWS Station. Forest Service, Berkeley, California.nRensi, G., and A. Weintraub., 1984. Computation of efficient kiln drying schedules through dynamic programming. Working Paper 84-13. Dept. of Industrial Engineering, University of Chile.nRensi, G., and J. Rhemrev. 1976. A statistical approach to product quality evaluation of kiln-dried pencil slats. Forest Prod. J. 26(12):42-43.n
The copyright of an article published in Wood and Fiber Science is transferred to the Society of Wood Science and Technology (for U. S. Government employees: to the extent transferable), effective if and when the article is accepted for publication. This transfer grants the Society of Wood Science and Technology permission to republish all or any part of the article in any form, e.g., reprints for sale, microfiche, proceedings, etc. However, the authors reserve the following as set forth in the Copyright Law:
1. All proprietary rights other than copyright, such as patent rights.
2. The right to grant or refuse permission to third parties to republish all or part of the article or translations thereof. In the case of whole articles, such third parties must obtain Society of Wood Science and Technology written permission as well. However, the Society may grant rights with respect to Journal issues as a whole.
3. The right to use all or part of this article in future works of their own, such as lectures, press releases, reviews, text books, or reprint books.