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J. Cent. South Univ. (2018) 25: 1173-1181 DOI: https://doi.org/10.1007/s11771-018-3816-6 Dynamic model of saturator based on a global heat and mass transfer coefficient HUANG Di(黄地)1, 2, ZHOU Deng... based on cooling tower technology to model the saturator in small-scale HAT cycle. Compared with the experimental data, the simulation results show that the proposed model well predicts the dynamic......
peak value is immediately maintained, which presents a phenomenon of dynamic recovery. Fig. 1 Typical true stress–strain curves for 7050 aluminium alloy at various strain rates and temperatures: 2.2... boundaries and the dynamically recrystallized grain boundaries. 3.1.1 Model of dislocation density The development of dislocation density is generally determined by work hardening and dynamic recovery......
-Zn-Mg-Cu alloy during annealing. Mechanism for nucleation and its growth of recrystalized grains were discussed. The influence of dynamic recovery on recrystallization behavior was also investigated...%, the microstructure is comprised of dislocation cell structures and subgrains with diameter of 0.3-0.6 μm. Polygonization occurs during dynamic recovery accelerates recrystallization during subsequent annealing......
alloy is liable to undergo work hardening (WH), dynamic recovery (DRV) and dynamic recrystallization (DRX), which are three metallurgical phenomena controlling the microstructure and mechanical... steady-state without any peak due to dynamic recovery (DRV) (1173 K and 0.01 s-1, 1223 K and 0.01 s-1, 1273 K and 0.01 s-1, 1323 K and 0.01 s-1, 1173 K and 0.1 s-1, 1223 K and 0.1 s-1, 1273 K and 0.1......
J. Cent. South Univ. (2012) 19: 633-638 DOI: 10.1007/s11771-012-1049-7 Coupled simulation of BES-CFD and performance assessment of energy recovery ventilation system for office model Yunqing... conservation of the heat recovery ventilator and to investigate the effect of the air supply arrangement. Three types of mixing ventilation are chosen for the analysis of coupling ANSYS/FLUENT......
粗糙,相对于不锈钢和钛板电极拥有较大的比表面积,会得到较高的回路电流,有利于Co(Ⅱ)的还原. 表1 电极材料对钴回收的影响 Table 1 Effect of electrode materials on cobalt recovery 2.3 阴极液pH对钴回收的影响 调节MEC阴极液pH,分别为1,3和5,实验结果如表2所列. 表2 阴极pH值对钴回收影响 Table 2 Effect of cathode pH on cobalt recovery 分析表2数据发现,当pH从5降到3时,CE仅提高了0.1%,但ηca和钴比收率都有较大提高,达到43.9%和0.73 gCo/gCOD,Co(II)在阴极液中的去除率也提高了10%.pH值的降低,阳极库伦效率和阴极效率均有明显提高,说明较低的pH值能够提高电子利用率,并促进......
J. Cent. South Univ. (2017) 24: 1207-1216 DOI: 10.1007/s11771-017-3524-7 Dynamic simulation of pilot thickener operation using phenomenological model with results validation for continuous... also simulated and it was observed that there is a good agreement between the results of continuous tests and the results of dynamic simulation. Secondly, the discontinuous tests were performed......
]. 中国有色金属学报, 2021, 31(7): 1767-1773. DOI: 10.11817/j.ysxb.1004.0609.2021-36677 LI Zuo-sheng, TANG Sai, LIANG Chao-ping, et al. Establishment and simulation in dynamic recovery process of tungsten using...; Dislocation density distribution map(a) and its partial map(b) obtained when T=1623 K and =0.01 s-1 at 2000 dt 图5 应变率0.01 s-1时不同温度下和温度1573 K时不同应变率下的动态回复体积分数曲线 Fig. 5 Dynamic recovery......
Shijian1, ZHANG Qiong1, YANG Jinhui1, PENG Yongzhen1 (1. Key Laboratory of Beijing for Water Quality Science and Water Environment Recovery Engineering, Engineering Research Center of Beijing, Beijing...: phenol; ammonia oxidation rate; inhibition and recovery 通过硝化反硝化作用完成污水生物脱氮过程是一种经济有效的生物处理技术.自养硝化菌在好氧状态下将水中含氮污染物(主要为氨氮)氧化成亚硝酸盐或硝酸盐;在缺氧状态下,异养菌利用水中有机物将氮氧化物还原为氮气释放至空气中,这2个过程将水中氮去除.完成硝化反硝化生物脱氮作用的微生物有较强的适应能力,但脱氮效......
. Dynamic recovery (DRV) and dynamic recrystallization (DRX) are the main deformation mechanisms of the 2050 alloy in the stable domains, whereas the alloy exhibits flow localization in the instable region. Key words: 2050 Al-Li alloy; processing map; dynamic recovery; dynamic recrystallization; flow localization 1 Introduction Compared with conventional Al alloys, Al-Li alloys typically possess......