“ Trends in the Development of Machinery and Associated Technology ” TMT 2008 , Istanbul , Turkey , 26-30 August , 2008 NUMERICAL ANALYSIS OF THE EFFECT OF OPERATIONAL PARAMETERS OF HEAT TRANSFER SURFACES IN CFBS
The design or scale-up of heat transfer systems in fluidized beds require estimation of the effective heat transfer coefficient on heat transfer surfaces in contact with the fluidized medium. In this study, the effects of operational parameters on bed-to-wall heat transfer in CFBs is investigated such as solids volume fraction, particle diameter, suspension density, superficial velocity and solid circulation rate, using modified cluster renewal model. In the modified cluster renewal model, the gas phase properties are used for the dilute phase and similarly the solid phase properties are used for the cluster phase. The gas phase and the solid phase properties are considered in the control volume which is in the vicinity of the heat transfer surface.
Heat transfer in circulating fluidized beds
Circulating fluidized beds involving combustion or exothermic reaction commonly require heat transfer to the bed walls. The heat transfer helps to control the bed temperature and serves as a primary means to generate steam or hot water from the bed.
Fascism and the right in Europe, 1919-1945
This new text places interwar European fascism squarely in its historical context and analyses its relationship with other right wing, authoritarian movements and regimes. Beginning with the ideological roots of fascism in pre-1914 Europe, Martin Blinkhorn turns to the problem-torn Europe of 1919 to 1939 in order to explain why fascism emerged and why, in some settings, it flourished while in others it did not. In doing so he considers not just the 'major' fascist movements and regimes of Italy and Germany but the entire range of fascist and authoritarian ideas, movements and regimes present in the Europe of 1919-1945.