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Theoretical energy consumption analytical method for metal separation process

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Journal of thermal science 2010年第4期19卷 377-382页

作者： dehong xia,Yingchun SHANG,ling ren and Yifan LI department of thermal engineering,university of science and technology beijing,beijing 100083 department of thermal engineering University of Science and Technology Beijing Beijing China

The theoretical energy consumption(TEC)analytical methods and the calculated models for the electrolytic and thermal reduction metal separation processes have been put forward based on thermodynamics and physical chemistry principles,providing theoretical foundation for choosing the optimum metal separation *** on the models,the TECs of the Mg separation processes are taken as an example,and have been calculated and analyzed contrastively,including the MgCl_2 electrolytic method,the MgO electrolytic method with inert electrode and with carbon anode,and the silicothermic *** is shown that the thermal method is more reasonable than the electrolytic methods to separate Mg under low efficiency of coal power generation.

关键词： metal separation theoretical energy consumption electrolysis thermal reduction

Study of the Reconstruction of Fractal Structure of Closed-cell Aluminum Foam and its thermal Conductivity

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Journal of thermal science 2012年第1期21卷 77-81页

作者： dehong xia shanshan guo ling ren department of thermal engineering University of Science and Technology Beijing Beijing 100083 China

Based on the characteristics of the internal structure of closed-cell aluminum foam, this paper attempts to illus- trate the process of reconstructing the internal structures of closed-cell aluminum foam in Monte-Carlo method and the fractal characteristics of the reconstructed model. Furthermore, Binary Array Method is proposed by analyzing the reconstructed model and the thermal conductivity model of closed-cell aluminum foam is established. At the same time, the thermal conductivity of the foam materials with different porosity is calculated by Binary Array Method, and the calculated value coincides with the experimental results in the reference, which proves the correctness of these methods.

关键词： fractal closed-cell aluminum foam reconstruction Binary Array Method thermal conductivity

A Comparative Study on the Separating Methods of Al,Ca and Mg Based on Theoretical Energy Consumption

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Journal of thermal science 2011年第1期20卷 82-87页

作者： dehong xia Yingchun SHANG ling ren department of thermal engineering University of Science and Technology Beijing Beijing 100083

Based on thermodynamics and physical chemistry theory,the theoretical energy consumption (TEC) of the typical separating processes of Al,Ca and Mg has been calculated and *** paper attempts to prove that the thermal method is more reasonable than the electrolytic methods to separate Al,Ca and Mg under the domestic circumstances of the low efficiency of coal-firing power plant at present.

关键词： Aluminum Calcium Magnesium Theoretical energy consumption