The Impact of Vacuum-Drying on Efficiency of Hardwood Products Manufacturing Oxana M. Brenes Angulo Thesis submitted to the faculty of the Virginia Polytechnic Institute and State University in partial fulfillment of the requirements for the degree of Master of Science In Wood Science and Forest Products Brian H. Bond, Chair
drying of wood can take weeks or even months while a wood drying kiln can complete the process in less than a day. Efficient means producing satisfactory results with an economy of effort and a minimum of waste Robinson and Davidson, 1999. This is quite a broad definition and in the context of kiln drying could represent the efficient use of ...
Sep 29, 2009 A solar kiln is the simplest and safest way to dry green wood quickly. Because the wood is protected from the elements, this solar kiln offers more control with much less chance of defects than air-drying provides. Unlike air-drying, itll dry wood to the moisture level needed for interior use.
A Thompson Wood Chip Dryer can dry temperature-sensitive, wood chips safely at a high capacity with thermal efficiency around 85 it does so with minimal air pollution, little material degradation and low fire risk. A Thompson Wood Chip Dryer is the most cost effective and energy efficient wood chip dryer
In dry air, the wood gives up water to the air until it is dried, as it equalizes with the air. When the air is more humid, wood absorbs water from the air. Wood expands when it absorbs water, and shrinks when it gives up water. In worst-case winter heated conditions in northern climates, wood may dry to a moisture content of 6
In this study, a novel energy-conserving device was designed and installed in a 50 m 3 wood drying kiln in two different Chinese cities to test the energy efficiency performance in rainy seasons and cold days. Experiments were conducted in real industrial drying production during both hot summer and cold winter.
The energy used to dry wood can be re- duced. More than 20 practical suggestions to reduce fuel consumption, improve drying efficiency, and lower both air-and kiln-drying costs are discussed. U.S. DEPARTMENT OF AGRICULTURE FOREST SERVICE FOREST PRODUCTS LABORATORY MADISON, WIS. 4 In Cooperation with the University of Wisconsin ...
Jan 25, 2018 A conventional kiln can dry the wood continuously and necessitates constant monitoring to prevent exceeding the safe drying rate for that particular species. A solar kiln is cyclical. Hence, during the day, it heats up, and the fan comes on to circulate all the hot air inside through the stack.
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