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Date
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星期
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报告时间
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报告内容
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10.13
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一MON
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9:00-9:45
(45 minutes
地点：所231会议室
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Capacitance, Gas Concentration and Temperature Measurements in the Combustion Chamber of the 235 MWe CFB Boiler Turow No. 3
Details of a measurement campaign are reported where local temperatures, gas concentrations and solids concentrations were measured inside the combustion chamber (200 m2 cross-sectional area, 45 m high) of an industrial-size boiler under full-load operating conditions. The measurements reveal the existence of three-dimensional temperature and concentration fields and provide hints on how to improve the boiler’s performance.
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10:15-11:00
(45 minutes
地点：所231会议室
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Fluidized Bed Reactor Modeling
In the first part of this lecture a fluidized bed reactor for a simple first order catalytic reaction is modelled in order to illustrate the scale-up problem and the influences on the reactor performance.
In the second part the fluidized bed combustor is modelled as an example of a complex reaction system. 3D effects of mixing and reaction, performance with different fuels and the influences of fuel feed location are demonstrated.
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10.15
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三WED
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14:00-14:45
(45 minutes
地点：所231会议室
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Modeling and Experimental Investigation of the Gasification of Biomass in the Circulating Fluidized Bed for the Example of Sewage Sludge
The experiments were carried out in a pilot scale facility (riser 0.1 m diameter with height of 15 m, downcomer 0.08 m diameter). At first a 1D model is used to extract the relevant chemical reactions and to determine the reaction kinetic parameters in the resulting complex network of reactions. On this basis a 3D model is developed which is able to describe scale-up effects like number of feedpoints, increasing the bed diameter and level of fuel feeding.
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15:30-16:15
(45 minutes
地点：所231会议室
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SolidSim – A New Tool for the Flow Sheeting of Complex Solids Processes
Flow sheet simulation is quite common in the design of processes involving fluids. Aspen Plus is the example of a frequently used tool. In this lecture a new system is described which has been developed over the last ten years for the special purpose of simulating solids processes where the particle size distributions and even particle-size dependent characteristics e.g. the size-dependent moisture content of particles are considered. The system has been developed with financial support by industry and with active cooperation of the major German university institutes in the field of particle technology. First examples of process applications will be shown.
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10.16
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四THU
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9:00-9:45
(45 minutes
地点：所231会议室
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New Trends in Waste Combustion
After a description of the legal framework for emissions from waste combustion in the European Union some new developments for keeping the emission limits are highlighted, e.g. Hg removal by injection of bromine salts, desulphurization with less limestone consumption and the combined removal of pollutants in integrated processes. Process innovations include various ways of waste conditioning and the co-combustion of wastes in coal-fired power stations.
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10:00-10:45
(45 minutes
地点：所231会议室
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Sustainable and energy-efficient utilization of biomass by co-combustion in large-scale power stations
Co-combustion of biomass is becoming more and more interesting for coal-fired power plants in Europe with the price of imported coal increasing and the CO2 Emission Trading Scheme being established. Examples of co-combustion are given for different countries. In Germany, the co-combustion of sewage sludge has found widespread application. Calculations are presented which demonstrate that it might be financially advantageous to upgrade the wet sewege sludge by drying to a useful biofuel.
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11:00-11:15
(15 minutes
地点：所231会议室
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The European Union emission trading scheme and its implementation in Germany
The establishment of the European Emission Trading Scheme (ETS) since 2005 is described. In particular recent experiences gained with its implementation in Germany will be discussed.
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