Sökning: "circulating fluidized-bed boilers"
Visar resultat 1 - 5 av 26 avhandlingar innehållade orden circulating fluidized-bed boilers.
1. Nitrous Oxide Emission from Circulating Fluidized Bed Combustion
Sammanfattning : In the present thesis N2O results are presented from several measurement projects on two commercial circulating fluidized bed (CFB) boilers. Traditional parameter studies have been carried out, as well as test programs where various nitrogen-containing species were injected into the furnace or gas-concentration profiles in the combustion chamber were measured. LÄS MER
2. Heat Transfer in Circulating Fluidized Bed Boilers
Sammanfattning : Heat transfer to single particles in the transport zone of circulating fluidized beds and heat transfer to membrane tube walls have been investigated. The heat transfer coefficient to spheres in the transport zone of a circulating fluidized bed boiler has been measured with dark and light calorimeters. LÄS MER
3. Fluid dynamics of circulating fluidized-bed boilers
Sammanfattning : .... LÄS MER
4. Solids Flow Pattern in Circulating Fluidized-bed Boilers
Sammanfattning : The background of this dissertation is the knowledge of circulating fluidized bed (CFB)technology, which has reached a level enabling units of several hundred megawatts ofelectricity to be constructed and employed. Yet an improved understanding of the technologyis needed in order to further develop and optimize large-scale combustion in CFB boilers,especially since the operating conditions and the geometries of large boilers differ from thosetypical for laboratory units, in which most of the research hitherto has been performed. LÄS MER
5. Experiments and Predictions of Heat Transfer Characteristics in Circulating Fluidized Bed Boilders
Sammanfattning : This thesis presents experiments and predictions of heat transfer characteristics in circulating fluidized bed boilers. The boiler used for the experiments has a maximum load of 12 MWth, and the dimensions of the combustion chamber are 1.4 m x 1.7 m x 1 3. LÄS MER