Results 161 to 170 of about 1,194 (216)
AIChE Journal, EarlyView.Abstract Chemical‐looping gasification (CLG) offers a promising route for renewable biomass valorization, yet conventional oxygen carrier regeneration with O₂/H₂O is energy‐intensive and often produces low‐quality syngas. Here, we develop an inverse ZrO2/Co3O4 oxygen carrier that enables selective biochar oxidation and efficient lattice‐oxygen transfer
Junling Gao +9 more
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Drying Technology, 2000
Nonlinear programming methods are used to create effective drying schedules for boards. A two-dimensional, orthotropic drying model is connected to an optimization routine that solves convex sub-pr...
P. Carlsson, J. Arfvidsson
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Nonlinear programming methods are used to create effective drying schedules for boards. A two-dimensional, orthotropic drying model is connected to an optimization routine that solves convex sub-pr...
P. Carlsson, J. Arfvidsson
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Journal de Physique IV (Proceedings), 2005
The objective of this research is to study the effect of a convectif traditional drying on eucalyptus wood of the reafforestations of Sidi Yahia (West of Morocco). The obtained results show that the measurement of the bow of facing indicates that a drying under load, preceded by a reconditioning and followed by balancing, makes it possible to recover ...
A. Hakam +5 more
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The objective of this research is to study the effect of a convectif traditional drying on eucalyptus wood of the reafforestations of Sidi Yahia (West of Morocco). The obtained results show that the measurement of the bow of facing indicates that a drying under load, preceded by a reconditioning and followed by balancing, makes it possible to recover ...
A. Hakam +5 more
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2000
In order to predict the rate at which moisture leaves a rough-sawn board, the drying kinetics of the lumber need to be considered. The drying of wood involves the movement of water molecules, either as vapour or liquid (fluids), through a complex biological structure, with changes in phase such as thawing and evaporation.
Roger B. Keey +2 more
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In order to predict the rate at which moisture leaves a rough-sawn board, the drying kinetics of the lumber need to be considered. The drying of wood involves the movement of water molecules, either as vapour or liquid (fluids), through a complex biological structure, with changes in phase such as thawing and evaporation.
Roger B. Keey +2 more
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1992
Wood is continually exchanging moisture and this phenomenon is observed not only for living trees but also for pieces of wood in use, whatever the surrounding atmosphere. This surrounding atmosphere can be air or water, and in all these cases, the problem of drying the pieces of wood is of interest.
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Wood is continually exchanging moisture and this phenomenon is observed not only for living trees but also for pieces of wood in use, whatever the surrounding atmosphere. This surrounding atmosphere can be air or water, and in all these cases, the problem of drying the pieces of wood is of interest.
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DRYING AND USING PROPERTIES OF CHESTNUT WOOD
Acta Horticulturae, 2009Drying is a process, which removes the water from the wood aiming maximum wood quality and minimum drying time and costs. Even though there are a number of commercial drying methods, technical drying methods are mostly used in the wood products industry.
Unsal, Oner, Kantay, Ramazan
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Drying Technology, 1995
ABSTRACT Vacuum drying, j,e drying under absolute gas pressure of about 10⊃ Pa. is an efficient means of reducing the process period and of producing good quality wood. We will examine here continuous vacuum drying where the plank surfaces are kept at a constant temperature, which remains above the boiling point, and moisture flowing to the surface is ...
J-P. Fohr +3 more
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ABSTRACT Vacuum drying, j,e drying under absolute gas pressure of about 10⊃ Pa. is an efficient means of reducing the process period and of producing good quality wood. We will examine here continuous vacuum drying where the plank surfaces are kept at a constant temperature, which remains above the boiling point, and moisture flowing to the surface is ...
J-P. Fohr +3 more
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Diffusion and the drying of wood
Wood Science and Technology, 1995Fick's laws, stating that diffusion rate is proportional to the concentration gradient, have traditionally been used to describe the drying of wood. The author contends that they have been used inappropriately, since according to Fick's laws the rate varies as the concentration gradient of diffusing molecules, whereas many wood scientists use the ...
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Wood preparation, storage, and drying
Biomass and Bioenergy, 1992Abstract The research cooperation in this activity has shown a fundamentally different attitude between the participating scientists in the scientific line of procedure considered. One group proceeds pragmatically. The group has the opinion that drying progress in big chip stacks is determined by so many intercorrelated factors that it is ...
Kjell Suadicani, Niels Heding
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DRYING WOOD: A REVIEW - PART II
Drying Technology, 1983ABSTRACT This paper reviews the technology of wood drying and recent developments in the field. The importance of drying is reviewed first. Then the fundamentals of wood properties as they relate to drying are discussed, including how water is held in wood, how it moves through wood, and how drying stresses that lead to drying defects develop ...
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