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| 1 | Non-uniform distribution of gas-solid flow through six parallel cyclones in a CFB system: An experimental study显示文摘In large-scale circulating fluidized bed (CFB) boilers, it is common to use multiple cyclones in parallel for the capture of solids, assuming that gas-solid flow to be the same in the cyclones. This article presents a study investigating gas-solid flow through six parallel cyclones in a CFB cold test rig. The six cyclones were located asymmetrically on the left and right walls of the riser. Solid volume fraction and particle velocity profiles at the riser outlets and in the horizontal ducts were measured using a fiber optical probe. Cyclone pressure drop and solid circulating rate were measured for each individual cyclone. Measurements showed good agreement as to the non-uniform distribution of the gas-solid flow, which occurred mainly across the three cyclones on one side: the middle cyclones on both sides had higher particle velocities. Conversely, the solid volume fractions, solid fluxes and solid circulating rates of the middle cyclones were lower than those of the other four cyclones. The apparent reason for the flow non-uniformity among the cyclones is the significant flow non-uniformity at the riser outlets. Under typical operating conditions, the solid volume fractions at the riser outlets had a deviation of up to 26% whereas the solid circulating rates at the stand pipes, 7%. These results are consistent with most other studies in the literature. | Xinglong Zhou Leming Cheng Qinhui Wang Zhongyang Luo Kefa Cen | 2012 | Particuology2012，10，2： | 31 |
| 2 | A review of internally heat integrated distillation column显示文摘The energy consumption of distillation operation determines the amount of energy consumption throughout the chemical separation process. A heat integrated distillation column(HIDiC) could greatly reduce the irreversibility of the distillation process, so it gradually becomes a research hotspot. There are two major techniques for heat integration in HIDiC: internally and externally. This review paper describes the major research aspects of an internally heat integrated distillation column(IHIDiC), including the heat transfer models, various design structures(including the two-column HIDiC, Concentric HIDiC, Shell and tube HIDiC, Plate-fin HIDiC and the Super HIDiC, etc.), experimental research, simulation and optimization, process control research, as well as industrial plants and potential industrial applications. Among them, the heat transfer performance of various structures was analyzed of the various design structures based on experimental research, the effects of different factors(including relative volatility, reflux ratio, compression ratio, etc.) on HIDiC energy consumption or TAC is summarized in the simulation part. The calculation methods of the overall heat transfer coefficient and heat transfer models are summarized. The various optimization algorithms and optimization results of simplified HIDiC are summarized in the optimization part. The research status and the key technical issues in various aspects of HIDiC are summarized in this paper. In order to meet the requirements of industrial energy efficiency,the selection of multi-component separation distillation configurations needs to be considered more diversified,and internal complex coupling relationship of HIDiC needs to be further studied. | Jing Fang Xiaomin Cheng Zhongyang Li Hao Li Chunli Li | 2019 | Chinese Journal of Chemical Engineering2019，27，6： | 4 |
| 3 | Problems with Circulating Fluidized Bed (CFB)Boilers in Chi- na and Their Solutions 显示文摘 | CHENG Leming ZHANG Junchun LUO Zhongyang | 2011 | VGB Powertech2011，91，10： | 1 |
| 4 | Current status of the development of premixed combustion in porous media显示文摘 | Cheng Leming Wang Enyu Luo Zhongyang | 2003 | Power System Engineering2003，19，1： | 1 |
| 5 | Performance improvement of a nanofluid solar collector based on direct absorption collection (DAC) concepts显示文摘 | Luo Zhongyang Wang Cheng Wei Wei | 2014 | International Journal of Heat and Mass Transfer2014，75，： | 1 |
| 6 | Cera- mic-polymer composites with high dielectric constant 显示文摘 | Arbatti Milind Shan Xiaobing Cheng Zhongyang | 2007 | Adv Mater2007，19，： | 1 |
| 7 | Effect of temperature and pressure on the mineralogical and fusion characteristics of Jincheng coal ash in simulated combustion and gasification environments显示文摘 | Nijie Jing Qinhui Wang Leming Cheng Zhongyang Luo Kefa Cen Dongke Zhang | 2013 | Fuel2013，，： | 1 |
| 8 | Current Status of the Development of Premixed Combustion in Porous Media 显示文摘 | CHENG Leming WANG Enyu LO Zhongyang | 2003 | Power System Engineering2003，19，1： | 1 |
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