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Journal of Thermal Science 2006年第3期15卷 274-280页

作者： Shuqing GUO Yunhan XIAO wendong tian Zhedian ZHANG Zhongyuan University of Technology Zhengzhou City Henan Province 450007 China Institute of Engineering Thermophysics Chinese Academy of Sciences Beijing 100080 China

This paper considers the combination of hydrothermal degradation （HTD） and superheated steam （SHS） drying in disposal and processing of degradable organic wastes in municipal solid wastes （MSW）. In SHS drying, a fraction of dryer thermal energy input can be recovered and used to satisfy the heat requirement in maintaining the HTD operating temperature. Both energy and exergy analysis are applied to the combined process. The analysis covers ranges of dryer inlet temperatures of 202.38-234.19~C and feed water content of 32.5-65%. Thermal energy analysis shows that the combination of HTD and SHS drying can achieve thermal energy self-sufficiency （TES） by manipulating process variables. The exergy analysis indicates the location, type, and magnitude of the exergy losses during the whole process by applying the second law of thermodynamics.

关键词： hydrothermal degradation superheated steam drying energy analysis exergy analysis

Investigation of Coal Fueled Chemical Looping Combustion Using Fe_3O_4 as Oxygen Carrier:Influence of Variables

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Journal of Thermal Science 2010年第3期19卷 266-275页

作者： Xiaoyan Sun Wenguo Xiang Sha Wang wendong tian Xiang Xu Yanji Xu Yunhan Xiao School of Energy and Environment Southeast University Nanjing 210096 China Institute of Engineering Thermophysics Chinese Academy of Sciences Beijing 100080 China School of Mechanical Engineering Shanghai Jiao Tong University Shanghai 200240 China

Chemical-looping combustion (CLC) is a novel combustion technique with inherent CO2 *** (Fe3O4) was selected as the oxygen *** coal (Inner Mongolia,China),straw coke and natural coke were used as fuels for this *** of operation temperatures,coal to Fe3O4 mass ratios,and different kinds of fuels on the reduction characteristics of the oxygen carrier were investigated using an atmosphere thermogravimetric analyzer (TGA).Scanning electron microscopy (SEM) was used to analyse the characteristic of the solid *** results shown that the reaction between the coal and the oxygen carrier become strong at a temperature of higher than 800℃.As the operation temperature rises,the reduction conversion rate *** the temperatures of 850oС,900℃,and 950℃,the reduction conversion rates were 37.1%,46.5%,and 54.1% ***,SEM images show that at the temperature of higher than 950℃,the iron oxides become melted and *** possible operation temperature should be kept around 900℃.When the mass ratios of coal to Fe3O4 were 5/95,10/90,15/85,and 20/80,the reduction conversion rates were 29.5%,40.8%,46.5%,and 46.6% *** the increase of coal,the conversion rate goes *** there exist an optimal ratio around 15/*** based on different kinds of fuels show that the solid fuel with a higher volatile and a more developed pore structure is conducive to the reduction reactivity of the oxygen carrier.

关键词： chemical-looping combustion CO2 separation magnetite

Highly efficient ultraviolet high-harmonic generation from epsilon-near-zero indium tin oxide films

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Photonics Research 2021年第3期9卷 317-323页

作者： wendong tian Fei Liang Dazhi Lu Haohai Yu Huaijin Zhang State Key Laboratory of Crystal Materials and Institute of Crystal Materials Shandong UniversityJinan 250100China

High-harmonic generation in the ultraviolet region is promising for wireless technology used for communications and sensing. However, small high-order nonlinear coefficients prevent us from obtaining high conversion efficiency and functional photonic devices. Here, we show highly efficient ultraviolet harmonic generation extending to the fifth order directly from an epsilon-near-zero indium tin oxide(ITO) film. The real part of the annealed ITO films was designed to reach zero around 1050 nm, matching with the central wavelength of an Yb-based fiber laser, and the internal driving electric field was extremely enhanced. A high energy conversion efficiency of 10-4 and 10-6 for 257.5 nm(fourth-order) and 206 nm(fifth-order) ultraviolet harmonic generation was obtained,which is at least 2 orders of magnitude higher than early reports. Our results demonstrate a new route for overcoming the inefficiency problem and open up the possibilities of compact solid-state high-harmonic generation sources at nanoscale.

关键词： film. harmonic ultraviolet

Ioscaling effect in statistical sequential decay model and projectile fragmentation

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Ioscaling effect in statistical sequential decay model and p...

A Study on Heat Transfer for Immersed Tube inInternally Circulating Fluidized Bed

The 10~th International Conference on Nucleus-Nucleus Collisions

作者： wendong tian

＜正＞Isoscaling has been confirmed to study the symmetry energy in nuclear matter equation of state,and symmetry energy *** has been made by the statistical sequential decay model,to study the sequential decay effect...

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来源： cnki会议评论

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Journal of Thermal Science 1999年第3期8卷 190-195页

作者： tian wendong Hao Jinhua Wei Xiaolin Li Jun Wu Dongyin ShengHongzhi(Institute of Mechanics, Chinese Academy of Sciences, Beijing 100080, China) Institute of Mechanics Chinese Academy of Sciences Beijing China

Heat transfer coefficients for horizontally immersed tubes have been studied in a model of ICFB (Internally Circulating Fluidized Bed). The characteristics in ICFB were found to be significantly differentfrom those in bubbling bed. There is a flowing zone with high velocity in the heat exchange *** heat transfer coefficients strongly depend on the fluidized velocity in the flowing zone. The heatexchange process and suitable bed temperature can be controlled according to this feature. Based onthe results of the experiments, a formulation for heat transfer has been developed.

关键词： internally circulation fluidized bed immersed tube heat transfer.

Origin of the finite nuclear spin and its effect in intermediate energy heavy ion collisions

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Nuclear Science and Techniques 2012年第1期23卷 61-64页

作者： ZHANG Guoqiang CAO Xiguang FU Yao MA Yugang CAI Xiangzou WANG Hongwei FANG Deqing CHEN Jingen GUO Wei tian wendong LIU Guihua Shanghai Institute of Applied Physics Chinese Academy of SciencesShanghai 201800China

The heavy-ion phase-space exploration (HIPSE) model is used to discuss the origin of the nuclear spin in intermediate energy heavy-ion collision (HIC).The spin of maximal projectile-like fragment is found to depend strongly on impact parameter of a reaction system,while it relates weakly to the collision *** interesting multi-fragmentation phenomena related to the spin are *** also found that the excitation energy in the de-excitation stage plays a robust role at the de-excitation stage in HIC.

关键词：中能重离子碰撞核自旋起源激发能量空间探索影响参数反应体系断裂现象

Spatial Distribution of Mature Larvae of Obolodiplosis robiniae and Damage Regularity of Its First Generation Larvae on Leaves of Locust( Robinia pseudoacacia)

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Plant Diseases and Pests 2013年第4期4卷 39-41页

作者： Sun Jingshuang Cao Ning tian wendong Qu Haixue Xue Xinhua tian Guihong Fangshan Forest and Fruit Trees Technology Service Center

[ Objective] The paper was to explore the population dynamics of Obolodiplosis robiniae （Haldemarm）. [ Method ] The spatial distribution of mature larvae of O. robiniae and the damage regularity of its first generation larvae on leaves of locust were studied in Fangshan District of Beijing City. [ Result] The spa- tial distribution of mature larvae of O. robin/ae in the forest was sigrrificanfly higher than those in forest edge and periphery of forest edge. The attack of the first generation larvae was mainly concentrated in the lower part of tree crown. [ Conclusion] The study provides theoretical basis for the effective control against O. robiniae.

关键词： Obolodiplosis robiniae Mature larvae Spatial distribution Damage regularity

Simulation　of　Photon　Collection　Efficiency　in　Scintillator　of　4л　Detector　Array

维普期刊数据库评论

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IMP & HIRFL Annual Report 1996年第1期 30-31页

作者： tian wendong Li Songlin Zhu Yongtai Xu Hushan and Wang Qi

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基于化学链燃烧的吸收剂引导的焦炉煤气水蒸气重整制氢过程模拟

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化工学报 2007年第9期58卷 2363-2368页

作者：阳绍军徐祥田文栋中国科学院工程热物理研究所

建立了基于化学链燃烧供能的吸收剂引导的焦炉煤气水蒸气重整制氢系统,该系统包含吸收剂引导的焦炉煤气重整反应器(SECOGSR)、燃料反应器和空气反应器。该系统能产生高纯H2[93.23%(mol)],仅通过冷凝即可实现CO2的捕获,分离能耗低。采用A... 详细信息

建立了基于化学链燃烧供能的吸收剂引导的焦炉煤气水蒸气重整制氢系统,该系统包含吸收剂引导的焦炉煤气重整反应器(SECOGSR)、燃料反应器和空气反应器。该系统能产生高纯H2[93.23%(mol)],仅通过冷凝即可实现CO2的捕获,分离能耗低。采用Aspen Plus软件对吸收剂引导的焦炉煤气重整制氢过程进行了模拟,得到优化的反应条件为:温度650℃,压力1.5MPa,Ca/C=1,H2O/C=4。并对系统进行了模拟,以NiO/Y2O3/ZrO2(0.73/0.022/0.248,摩尔比)为化学链燃烧的载氧体和载能体,在满足反应器自热平衡和系统吸放热平衡的基础上,重整1mol焦炉煤气,燃料反应器和空气反应器所需的焦炉煤气、空气及载氧体NiO/Y2O3/ZrO2的量分别为0.139、0.648、3.11mol。该系统消耗1mol焦炉煤气的产H2量为1.30mol,捕获的CO2的量为0.355mol。

关键词：化学链燃烧焦炉煤气直接制氢 CO2捕集 Aspen Plus

Some key technics of drop tower experiment device of National Microgravity Laboratory (China) (NMLC)

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Science China(Technological Sciences) 2005年第3期48卷 305-316页

作者： ZHANG Xiaoqian 1 , YUAN Longgen 1 , WU wendong 1 , tian Lanqiao 2 & YAO Kangzhuang 2 1. Institute of Engineering Thermophysics, Chinese Academy of Sciences, Beijing 100080, China 2. Institute of Mechanics, Chinese Academy of Sciences, Beijing 100080, China Institute of Engineering Thermophysics Chinese Academy of Sciences Beijing China Institute of Mechanics Chinese Academy of Sciences Beijing China

Drop tower is an important ground based facility for microgravity science experiment. The technical performances of the drop tower NMLC are advanced compared with similar facilities in the US, Germany and Japan. The main components such as drop capsule, deceleration devices, release mechanism present its advantages and creativities.

关键词： drop tower facility,drop capsule,deceleration devices,release mechanism.