Условия эффективности нестационарного тепломассообмена при сушке пиломатериалов

The analysis of existing technologies drying lumber at small-scale business enterprises from the lumbering and woodworking shops Komi Permyak Okrug. Annual volumes of processed round timber vary widely: from 1.5 to 10 000 -3.0. m3 of softwood and hardwood timber. The main problems of processing of wood is lumber drying, qualitative indicators which do not comply with regulatory requirements. The main cause was found, Nonob-servance of the rules and a great variety of drying facilities using different coolants. Ignoring such technological operations as the beginning and ending of wood heat reduces the grade and the cost of materials. The most common instance is "drying-Warming up, which makes teplovlagoperenos and causes cracks to poverhnostima-teriala while slowing moving moisture from the center of the Board. Results of researches, analysis and analysis have enabled a more progressive way of convection drying with a significant reduction in process. The novelty of the new rules reflected in the resulting patent, which not only intensifies the process, but PI vysusivaemyh allows you to improve the quality of sawn timber.