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49,80 €ISBN 978-3-8322-9173-0Hardcover322 pages480 g21 x 14,8 cmEnglishHabilitation
June 2010
New publication
Stefan Hamel
On the Packing Properties of Fixed Beds for Thermal Fuel Conversion
Packed beds of fuel wood in the form of chips or pellets are commonly found in thermal conversion processes such as combustion or gasification. This thesis is concerned with the characterization of spatial voidage distribution inside fuel wood chip beds, which is of great importance for flow and reactor modelling.
On the basis of a random deposition approach, a packing model was developed in order to transfer geometrical bed structures into CFD software for subsequent flow simulations. In addition, an experimental investigation of voidage distribution by bed solidification, sectioning, and subsequent image analysis of the cuts was carried out for packings of different commercially available wood chips and pellets, in order to derive a mathematical expression correlating radial voidage distribution.
The findings of both the experimental results and the simulations are used to interpret fixed-bed wood combustion results from a laboratory-scale combustion tube and a commercial small-scale underfeed stoker.
On the basis of a random deposition approach, a packing model was developed in order to transfer geometrical bed structures into CFD software for subsequent flow simulations. In addition, an experimental investigation of voidage distribution by bed solidification, sectioning, and subsequent image analysis of the cuts was carried out for packings of different commercially available wood chips and pellets, in order to derive a mathematical expression correlating radial voidage distribution.
The findings of both the experimental results and the simulations are used to interpret fixed-bed wood combustion results from a laboratory-scale combustion tube and a commercial small-scale underfeed stoker.
Keywords: solid fuel; wood chips; pellets; particle; radial; voidage; porosity; image analysis; CFD; random packing model; underfeed stoker; combustion; gasification
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The book <a href="https://www.shaker.eu/shop/978-3-8322-9173-0">Stefan Hamel - On the Packing Properties of Fixed Beds for Thermal Fuel Conversion</a><br />(ISBN: 978-3-8322-9173-0) was published by <a href="https://www.shaker.eu">Shaker Verlag</a>.
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The book Stefan Hamel - On the Packing Properties of Fixed Beds for Thermal Fuel Conversion
(ISBN: 978-3-8322-9173-0) was published by Shaker Verlag.
(ISBN: 978-3-8322-9173-0) was published by Shaker Verlag.
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The series Berichte aus der Energietechnik
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