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Drying of wood

While a rotary dryer is shown, commonly used for grains and minerals, this control system has been successfully applied to fluid-bed drying of plastic pellets, air-lift drying of wood fibers, and spray drying of milk solids. The air may be steam-heated as shown or heated by direct combustion of fuel, provided that a representative measurement of inlet air temperature can be made. If it cannot, then evaporative load can be inferred from a measurement of fuel flow, which then would replace AT in the set-point calculation. [Pg.46]

For drying of wet material, experimental and calculated mass loss curves of the water for different gas temperatures are shown In Fig.7. To avoid intaraction with the pyrolysis process, a gas temperature of 150 C has been chosen for the drying of wood. At this tempo-ature the drying velocity is low, thus wood in the expo-iments contained only a small amount of water. Because pyrolysis of wood starts at temp atures of about 200 C, wet slate particles have b n used for drying experiments at higher temperatures. [Pg.594]

Drying of wood bed in hot air was measured in laboratory with different kinds and particle sizes of wood chips. [Pg.688]

Fyhr C., "Superheated Steam Drying of Wood Chips in Pneumatic Conveying Dryers , PhD Thesis, Department of Chemical Engineering Design, Chalmers University of Technology, Gdteborg, 1996. [Pg.1059]

Here the particle Nusselt number is Nup, where Nup = hfdp/kc, and kc is the thermal conductivity of the gas [W/(m-K)]. They stated that the heat-transfer rates predicted by this procedure were much larger than those measured on an industrial cooler, which is probably due to the particles on the inside of the cascades not e3q>eriencing the full gas velocity. Kamke and Wilson (1986) used a similar approach to model the drying of wood chips, but used the Ranz-Marsha (1952) equation to predict the heat-transfer coefficient ... [Pg.1397]

Gas Generation. This is the simplest application for the fluid bed technology. The gas can be used as a substitute for natural gas in an existing boiler or for the drying of wood products in a kiln dryer etc. [Pg.347]

Rosen H.N., Drying of wood and wood products. In Mujumdaar A.S. (ed.) Handbook of Industrial Drying. Marcel Dekker Inc., New York 1987, 683-709. [Pg.62]

Naghashzadegan. M., Haghi. A.K., Amanifard. N., Rahrovan. Sh., Microwave drying of wood Prductivity improvement, Wseas Trans, on Heat and Mass Transfer, Issue 4, Vol. 1,2006, pp. 391-397. [Pg.62]

Anastasios Koumoutsakos, Stavros Avramidis and Savvas G. Hatzikiriakos, Radio Frequency Vacuum Drying of Wood. I. Mathematical Model, Drying Technology, 2001, 19(1), 65-84. [Pg.204]

Fyhr C. and Rasmuson A., Steam drying of wood chips in pneumatic conveying dryers. Drying Technology, 15(6-8), 1775-1785, 1997. [Pg.392]

Extensive results have been reported in the literature on drying of wood as well. Again, all quality indicators are positive. Several vendors worldwide have already commercialized the vacuum-superheated steam-drying systems. It is noteworthy that besides enhancement of the product quality, the drying times are reduced two- to five-fold resulting in significant reduction in cost of inventory in the dryer. [Pg.429]

Salin, J.G., 1986, Steam drying of wood particles for particle board, in Drying 86 (A.S. Mujumdar, Ed.), Hemisphere, New York, pp. 575-576. [Pg.432]

Salin, J.G., 1988, Steam drying of wood for improved particle board and lower energy consumption, Paperi ja Puu (Paper and Timber), 9 806-810. [Pg.432]

S Danielsson, The release of monoterpenes during drying of wood chips, Dissertation, Chalmers University of Technology, Gothenburg, Sweden, 2001. [Pg.738]

M Hermansson, P Andersson, R Wimmerstedt, Steam drying of wood fuels. Drying Technology 10 1267-1286, 1992. [Pg.738]

Bond et al. [103] discuss the drying of paper by impinging jets of superheated steam. Svensson [105] discusses applications in the drying of wood pulp while Amoux et al. [106] consider the use of superheated steam in the drying of softwood biomass. [Pg.758]


See other pages where Drying of wood is mentioned: [Pg.46]    [Pg.19]    [Pg.291]    [Pg.171]    [Pg.310]    [Pg.596]    [Pg.354]    [Pg.355]    [Pg.444]    [Pg.179]    [Pg.11]    [Pg.371]    [Pg.387]    [Pg.421]    [Pg.428]    [Pg.483]    [Pg.552]    [Pg.797]    [Pg.799]    [Pg.801]    [Pg.803]    [Pg.805]    [Pg.807]    [Pg.809]    [Pg.811]   
See also in sourсe #XX -- [ Pg.332 ]




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