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Title: Chapter 11 Energy in Kiln Drying

Source: USDA Agricultural Handbook AH-188: Dry Kiln Operator's Manual

Author(s): Tschernitz

Publication Year: 2001  View PDF »

Related Publications: view

Category: Agricultural Handbook

Abstract: Drying of materials in general and of wood in particular is energy intensive, primarily because a high amount of energy is required to evaporate water (liquid to gas). Depending upon the type of equipment used to dry wood, the efficiency level of the operation may require one and one-half to four times the energy actually needed to evaporate the water. In addition, green wood to be dried may contain, by weight, as much as wo-thirds water. Wood can be successfully dried in different types of dryers. However, even when optimally operated, the dryers may have different levels of efficiency as an inherent property of their physical design and the materials of construction, and their efficiency may also be affected by environmental factors. Certain practices or maintenance procedures may further reduce dryer efficiency. In this chapter, we discuss energy demand as related to various methods of drying, types of environmental and geographical factors, fuel, and equipment misuse.

Keywords: Dry Kiln Operator's Manual Dry Kiln Operators Manual

File size: 266 kb(s)

Date posted: 06/10/2009

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