Sökning: "bed"

Visar resultat 16 - 20 av 782 avhandlingar innehållade ordet bed.

1. 16. Fluidized bed combustion and gasification for phosphorus recovery by co-conversion of sewage sludge with biomass

   Författare :Thomas Karl Hannl; Marcus Öhman; Matthias Kuba; Nils Skoglund; Mikko Hupa; Luleå tekniska universitet; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Combustion; gasification; sewage sludge; agricultural residues; fluidized bed; ash chemistry; bed material; phosphorus; fuel design; Energy Engineering; Energiteknik;

   Sammanfattning : In recent years, the thermal conversion of sewage sludge has proven its applicability for managing this inevitably generated waste. The viability arises from the concomitant features of recovering energy or valuable compounds, the breakdown of potentially harmful organic compounds, the separation or immobilization of heavy metals, and the formation of volume-reduced, sanitized residues. LÄS MER

3. 17. Solids Flow in Large-Scale Circulating Fluidized Bed Furnaces

   Författare :Tove Djerf; Chalmers tekniska högskola; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Solids flow; Transport zone; Fluid-dynamical down-scaling; Splash zone; Circulating fluidized bed boilers; Dense bed;

   Sammanfattning : The flow pattern of solids established in large-scale circulating fluidized bed (CFB) furnaces is of great importance for the performance of commercial CFB boilers, as it governs the heat transfer and mixing of the fuel and any other reactive solids. The solids flow pattern in the riser is crucial for the design and scaling up of large-scale CFB technologies for the thermochemical conversion of solids. LÄS MER

4. 18. Hydrodynamics of a fluidized bed : influence of pressure and fluidization velocity

   Författare :Per Olowson; Chalmers tekniska högskola; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; fluidized bed; tubes; bubble; particle drag force; through-flow velocity; minimum fluidization velocity; pressure probe; capacitance probe; pressurized fluidized bed; internals; gas flow distribution;

   Sammanfattning : .... LÄS MER

5. 19. Particle Coating in a Wurster Type Bed

   Författare :Stina Karlsson; Chalmers tekniska högskola; []
   Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Drying; Particle; Tracking technique; Spouted bed; Fluidisation; Multiphase flow; CFD; Trajectory; Coating; Wurster;

   Sammanfattning : The Wurster bed process is frequently used for film coating. In the Wurster bed, particles circulate in the equipment and are sprayed with a liquid which forms a coating when dry. The procedure is repeated until the desired characteristics of the coating layer are obtained. LÄS MER

7. 20. Fluidized bed combustion - modeling and mixing

   Författare :David Pallarès; Chalmers tekniska högskola; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Fluidized bed combustion; Mixing; Modeling;

   Sammanfattning : First demonstrated on industrial scale in 1976, fluidized bed combustion (FBC) rapidly became an established technology for solid fuel combustion with a currentinstalled capacity of about 30 GWe and power plants ranging from 10 to 460 MWe.The widespread use of the FBC technology both under so-called circulating and bubbling conditions (i.e. LÄS MER