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Träfflista för sökning "WAKA:kon ;pers:(Leckner Bo 1936)"

Sökning: WAKA:kon > Leckner Bo 1936

  • Resultat 1-10 av 199
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1.
  • Andersson, Bengt-Åke, et al. (författare)
  • Bed-to-wall heat transfer in a 10m2 bubbling fluidized bed
  • 1994
  • Ingår i: Congreso Europeo de Fluidización. - 8478060936 ; 1, s. 251-260
  • Konferensbidrag (refereegranskat)abstract
    • The heat transfer is measured on the membrane tube wall in contact with a bubbling fluidized bed boiler. Measurements are carried out by heat transfer meters through holes in the wall both in the bed and above the bed in the splash zone and freeboard. Heat transfer coefficients are given and compared with previous measurements of material loss at the same wall and under the same conditions (typical for a fluidized bed boiler)
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2.
  • Andersson, Bengt-Åke, et al. (författare)
  • Fluidized bed combustion of coals and alternative fuels
  • 1985
  • Ingår i: Proc of the 8th International Conference on Fluidized-Bed Combustion held in Houston Texas USA, March 18-21, 1985. ; 2, s. 1019-1029
  • Konferensbidrag (refereegranskat)abstract
    • The 16 MW demonstration plant at Chalmers University of Technology was designed to burn coal but measures were taken also to allow the use of alternative fuels. Results of comparative tests, with bituminous coal and alternative fuels, brown coal, peat, and wood chips, are presented. The combustion characteristics of the various fuels are illustrated with temperature and heat flux profiles in the freeboard. It is found that the volatile fuels tend to burn to a large extent above the bed and secondary air is necessary to complete the combustion. However, -if secondary air is used, a combustion efficiency close to 100% is easily obtained. Bituminous coal, on the other hand, does not readily burn with a high combustion efficiency in the boiler used.
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  • Andersson, Bengt-Åke, et al. (författare)
  • Local lateral distribution of heat transfer on tube surface on membrane walls in CFB boilers
  • 1993
  • Ingår i: Proc of the 4th International Conference on Circulating Fluidized Beds. ; , s. 311-318
  • Konferensbidrag (refereegranskat)abstract
    • The wall to bed heat transfer was investigated in a 12 MWth CFB boiler at different locations in the combustion chamber and under various operating conditions. At high levels in the furnace the lateral distribution of heat flow to the tube and fin was found to be a result of radiation from the hot bed bulk, especially at low bulk densities. The local heat flow to the fin decreased considerably with decreasing height in contrast to the heat flow to the crest of the tube. This is due to the large down-flow of particles in the fin region and the growth of the boundary layer. The average heat transfer coefficient across the membrane wall was found to decrease with decreased bulk density, but at low bulk densities the decrease is very small since radiation dominates heat transfer.
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  • Andersson, Sven B, 1952, et al. (författare)
  • N2O-Emissions from Fluidized Bed Combustion
  • 1988
  • Ingår i: Proceedings of IEA AFBC Technical Meting held in November 1988 in Amsterdam, The Netherlands.
  • Konferensbidrag (övrigt vetenskapligt/konstnärligt)abstract
    • Nitrous oxide, N20, is formed during combustion. In flames the N20 is removed because of the fast destruction at high temperatures. At the temperatures of fluidized bed com­bustion the destruction is much slower and N20 will leave the system, normally at a concentration of 50-200 ppm when burning coal. Using the results of the preliminary model in a CFB, it can be assumed that:- N20 is formed from char nitrogen in the bottom bed because of reactions in the pores of the particle. - Only some N20 is formed when NO is reduced during its journey up through the combustion chamber. - N20 is formed from HCN. This is a slow process (taking seconds) and it therefore takes place principally above the bottom bed.
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  • Resultat 1-10 av 199
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konferensbidrag (199)
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refereegranskat (123)
övrigt vetenskapligt/konstnärligt (76)
Författare/redaktör
Leckner, Bo G, 1936 (199)
Åmand, Lars-Erik, 19 ... (47)
Johnsson, Filip, 196 ... (40)
Thunman, Henrik, 197 ... (25)
Andersson, Klas, 197 ... (13)
Gómez-Barea, Alberto (13)
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Andersson, Bengt-Åke (11)
Lyngfelt, Anders, 19 ... (10)
Normann, Fredrik, 19 ... (10)
Andersson, Sven B, 1 ... (8)
Karlsson, Maria, 198 ... (8)
Tullin, Claes (7)
Tullin, C (6)
Rönnbäck, Marie (6)
Ollero, Pedro (6)
Johansson, Robert, 1 ... (5)
Werther, J. (5)
Sasic, Srdjan, 1968 (4)
Baskakov, A.P. (4)
Palchonok, G.I. (4)
Borodulya, V.A. (4)
Gustavsson, Lennart, ... (4)
Zhang, Wennan, 1962 (4)
Samuelsson, J (3)
Breitholtz, Claes, 1 ... (3)
Martinsson, Lars (3)
Johansson, Linda (3)
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Sternéus, Johan, 197 ... (2)
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Chalmers tekniska högskola (199)
Göteborgs universitet (1)
Högskolan i Borås (1)
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