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| 1 | Development of a supercritical and an ultra-supercritical circulating fluidized bed boiler显示文摘The supercritical circulating fluidized bed(CFB)boiler,which combines the advantages of CFB combustion with low cost emission control and supercritical steam cycle with high efficiency of coal energy,is believed to be the future of CFB combustion technology.It is also of greatest importance for low rank coal utilization in China.Different from the supercritical pulverized coal boiler that has been developed more than 50 years,the supercritical CFB boiler is still a new one which requires further investigation.Without any precedentor engineering reference,Chinese researchers have con ducted fundamental research,development,design of the supercritical CFB boilers independently.The design theory and key technology for supercritical CFB boiler were proposed.Key components and novel structures were invented.The first 600 MWe supercritical CFB boiler and its auxiliaries were successfully developed and demonstrated in Baima Power Plant,Shenhua Group as well as the simulator,control technology,installation technology,commissioning technology,system integration and operation technology.Compared with the 460 MWe supercritical CFB in Poland,developed in the same period and the only other supercritical one of commercial running in the word beside Baima,the 600 MWe one in Baima has a better performance.Besides,supercritical CFB boilers of 350 MWe have been developed and widely commercialized in China.In this paper,the updated progress of 660 MWe ultra-supercritical CFB boilers under development is introduced. | Junfu LYU Hairui YANG Wen LING Li NIE Guangxi YUE Ruixin LI Ying CHEN Shilong WANG | 2019 | Frontiers in Energy2019，13，1： | 11 |
| 2 | Particle size distribution in CPFD modeling of gas-solid flows in a CFB riser显示文摘A computational particle fluid dynamics(CPFD) numerical method to model gas-solid flows in a circulating fluidized bed(CFB) riser was used to assess the effects of particle size distribution(PSD) on solids distribution and flow.We investigated a binary PSD and a polydisperse PSD case.Our simulations were compared with measured solids concentrations and velocity profiles from experiments,as well as with a published Eulerian-Eulerian simulation.Overall flow patterns were similar for both simulation cases,as confirmed by experimental measurements.However,our fine-mesh CPFD simulations failed to predict a dense bottom region in the riser,as seen in other numerical studies.Above this bottom region,distributions of particle volume fraction and particle vertical velocity were consistent with our experiments,and the simulated average particle diameter decreased as a power function with riser height.Interactions between particles and walls also were successfully modeled,with accurate predictions for the lateral profiles of particle vertical velocity.It was easy to implement PSD into the CPFD numerical model,and it required fewer computational resources compared with other models,especially when particles with a polydisperse PSD were present in the heterogeneous flow. | Qinggong Wang Timo Niemi Juho Peltola Sirpa Kallio Hairui Yang Junfu Lu Lubin Weic | 2015 | Particuology2015，13，4： | 8 |
| 3 | Effects of Atmospheres and Precursors on MnO_x/TiO_2 Catalysts for NH_3-SCR at Low Temperature显示文摘The effects of atmospheres and precursors on MnOx/TiO2 catalysts were studied,which were prepared by the impregnation method and tested for their NOx conversion activity in ammonia selective catalytic reduction(NH3-SCR) reactions.Results showed that the manganese carbonate(MC) precursor caused mainly Mn2O3,while the manganese nitrate(MN) precursor resulted primarily in MnO2 and the manganese sulfate(MS) precursor was unchanged.The manganese acetate(MA) precursor leaded obtaining a mixture of Mn2O3 and Mn3O4.NOx conversion decreased in the following order: MA/TiO2>MC/TiO2>MN/TiO2>MS/TiO2>P25,with a calcination temperature of 773 K in air.Catalysts that were prepared by MA and calcined in oxygen performed strong interaction between Ti and Mn,while MnTiO3 was observed.Compared to the catalysts calcined in nitrogen,those calcined in oxygen had larger diameter and smaller surface area and pore.Catalysts that were prepared by MA and calcined in nitrogen tended to gain higher denitration rates than those in air,since they could be prepared with significant specific surface areas.NOx conversion decreased with calcination atmospheres: Nitrogen>Ai>Oxygen.Meanwhile,amorphous Mn2O3 turned into crystalline Mn2O3,when the temperatures increased from 673 to 873 K. | 方德 HE Feng 谢峻林 FU Zhengbing CHEN Junfu | 2013 | Journal of Wuhan University of Technology(Materials Science)2013，28，5： | 8 |
| 4 | Al_2O_3-TiO_2 composite oxide films on etched aluminum foil fabricated by electrodeposition and anodization显示文摘Ti species have been deposited on low-voltage etched aluminum foils by a simple electrochemical method using a Ti anode as Ti source in a Ti-free I2-dissolved acetone solution. After annealing at 500-600℃ in air, an Al2O3-TiO2 composite oxide film was formed on the surface of the etched aluminum foil by anodizing galvanostatically in an ammonium adipate solution. The effects of I2 concentration in the acetone solution, applied anode voltage, electrolysis time, and annealing temperature on the specific capacitance of the aluminum anode foils were investigated. The TiO2-deposited specimens prepared by applying a po-tential of 50V for 3 min in 2.5m MI2-added acetone solution followed by annealing at 550℃ after anodization exhibited the highest specific capacitance, with an enhancement of 22% compared with pure etched aluminum foil specimens. The electro-deposition process and the change of the anode voltage during the anodization were analyzed. | BU JunFu SUN Lan WU Qi WANG MengYe LIN ChangJian | 2011 | Science China Chemistry2011，54，10： | 7 |
| 5 | An overview of the development history and technical progress of China's coal-fired power industry显示文摘As the main power source of China, coalfired power industry has achieved a great progress in installed capacity, manufacturing technologies, thermal efficiency, as well as pollutant control during the past century. With the fast development of renewable energies, coal-fired power industry is experiencing a strategic transformation. To specify the development of coal-fired power industry, its development history is reviewed and the technical progresses on aspects of thermal efficiency, pollutants control and peaking shaving capacity are discussed. It is concluded that the role of China's coal-fired power source would be transformed from the dominant position to a base position in power source structure. Considering the sustainable development of coal-fired power industry in energy conservation, emission control, and utilization of renewable energies, it is suggested that the national average thermal efficiency should be improved by continual up-gradation of units by using advanced technologies and eliminating outdated capacity. Moreover, the emission standard of air pollutants should not be stricter any more in coal-fired power industry. Furthermore, the huge amount of combined heat and power (CHP) coal-fired units should be operated in a decoupled way, so as to release more than 350 GW regulation capacity for the grid to accept more renewable energy power. | Weiliang WANG Zheng LI Junfu LYU Hai ZHANG Guangxi YUE Weidou NI | 2019 | Frontiers in Energy2019，13，3： | 6 |
| 6 | Microencapsulated ammonium polyphosphate by polyurethane with segment of dipentaerythritol and its application in flame retardant polypropylene显示文摘Dipentaerythritol(DPER),4,40-diphenylmethanediisocyanate(MDI)and melamine(MEL)are used as raw materials to microencapsulate ammonium polyphosphate(MAPP)in situ polymerization.The MAPP is characterized by Fourier transform infrared(FT-IR),scanning electron microscopy(SEM),transmission electron microscopy(TEM)and thermal gravimetric analysis(TGA).The results show that the coating operation can effectively improve water resistance of ammonium polyphosphate(APP),and MAPP has higher residual rate than that of APP after combustion.The flame retardant action of MAPP and APP in polypropylene(PP)is investigated by the limited oxygen index(LOI),vertical burning test(UL-94),TGA,SEM,and cone calorimeter test(CCT).The LOI value of the PP/MAPP composite at the same loading is higher than that of PP/APP composite.UL 94 ratings of PP/MAPP composites are raised to V-0 at 20 wt%loading.The results of CCT also show that MAPP is more efficient than APP.The morphological structures observed by digital photos and SEM demonstrated that MAPP could be promoted to form the continuous and compact intumescent char layer.The flame retardant mechanism of PP/MAPP is also discussed. | Shouwu Yu Shujuan Xiao Zewen Zhao Xiaowen Huo Junfu Wei | 2019 | Chinese Journal of Chemical Engineering2019，27，7： | 6 |
| 7 | Progress of circulating fluidized bed combustion technology in China:a review显示文摘Circulating fluidized bed(CFB)technology plays an important role in the utilization of low-grade coal in China.This article reviews CFB combustion technology development in China and summarizes recent achievements.Since 1990 Chinese engineers and researchers have been undertaking work to improve CFB boiler technology.A completely novel CFB boiler design theory was developed and used in the domestic manufacturing of CFB boilers with various capacities.China is the largest supplier and customer of CFB boilers in the world due to the widespread use of CFB boilers.In 2007,the lower energy consumption CFB technology was successfully developed by re-specifying the fluidization state,which reduced the power consumption of forced fans and solved the potential erosion problems on the water wall.Afterwards,in order to increase the electric power generation efficiency,the supercritical CFB(SCCFB)boiler was developed and the first 600 MW SCCFB boiler was demonstrated and put into commercial operation in 2013.The success of the technology is evident with over 80 SCCFB boilers on order with capacities of 350 MW to 660 MW.Chinese scientists and engineers are also developing technology to lower the emissions of CFB combustion to meet the requirements of China’s strict emission regulations.This emission reduction is through high-efficiency desulfurization by limestone injection into the furnace and low NOx combustion,ultra-low emission of SO2 and NOx in the furnace can be realized by improving the bed quality and increasing the solid circulation rate.There is currently further research and design development being undertaken to develop a 660 MW ultra-supercritical CFB(USCCFB)boiler.The new boiler is expected to be operational before 2020 resulting in higher efficiency and lower energy consumption and emissions. | Runxia Cai Xiwei Ke Junfu Lyu Hairui Yang Man Zhang Guangxi Yue Wen Ling | 2017 | Clean Energy2017，1，1： | 5 |
| 8 | Multicolor carbon dots with concentration-tunable fluorescence and solvent-affected aggregation states for white light-emitting diodes显示文摘Multicolor emissive carbon dots(M-CDs)have tremendous potential applications in manifold fields of bioimaging,biomedicine and light-emitting devices.Until now,it is still difficult to produce fluorescence tunable CDs with high quantum yield across the entire visible spectra.In this work,a type of M-CDs with concentration-tunable fluorescence and solvent-affected aggregation states was synthesized by solvothermal treatment of citric acid(CA)and 1-(2-pyridylazo)-2-naphthol(PAN)and the formation mechanism was monitored by different reaction time and raw material ratio.The fluorescence spectra of M-CDs in organic solvents can range from 350 to 750 nm by adjusting the concentration.M-CDs possess different aggregation states in water and organic solvents,accompanied by different fluorescence emission,which is attributed to the different surface states of various component CDs in M-CDs.Moreover,the obtained products can be uniformly dispersed into polymethylmethacrylate(PMMA)solutions as well as epoxy resins to fabricate transparent CDs/PMMA films and CDs/epoxy composites,which can effectively prevent the aggregation and produce multicolor and white light-emitting diodes(WLED).In addition,the prepared WLED with Commission Internationale de L’Eclairage(CIE)of(0.29,0.31)by using M-CDs/epoxy resin as packages,demonstrating the M-CDs exhibit potential applications for light-emitting devices. | Fanyong Yan Yingxia Jiang Xiaodong Sun Junfu Wei Liang Chen Yuyang Zhang | 2020 | Nano Research2020，13，1： | 4 |
| 9 | Modeling study of combustion process of oil shale semicoke in a circulating fluidized bed boiler显示文摘In this paper,the combustion process of oil shale semicoke was investigated by modeling,where intraparticle mass transfer resistance was especially considered.The ash formation and attrition characteristics of oil shale semicoke were also investigated by a laboratory test procedure.The burnout time and residence time of different particle sizes were predicted,and the maximum particle size of which oil shale semicoke could be burned out in a 3 MW circulating fluidized bed boiler was obtained. | Yiqun Huang Man Zhang Junfu Lyu Hairui Yang | 2018 | Carbon Resources Conversion2018，1，3： | 4 |
| 10 | Expression of a plant-associated human cancer antigen in normal,premalignant and malignant esophageal tissues显示文摘AIM: To study the relationship between the expression profiles of a plant-associated human cancer antigen and carcinogenesis of esophagus and its significance.
METHODS: We analyzed expression of a plant-associated human cancer antigen in biopsy specimens of normal (n=29),mildly hyperplastic (n=29), mildly (n=30), moderately (n=27)and severely dysplastic (n=29) and malignant esophageal (n=30) tissues by immunohistochemistry.
RESULTS: The plant-associated human cancer antigen was mainly confined to the cytoplasm and showed diffuse type of staining. Positive staining was absent or weak in normal (0/30) and mildly hyperplastic tissue samples (2/29), while strong staining was observed in severe dysplasia (23/29) and carcinoma in situ (24/30). There was significant difference of its expression between normal mucosa and severely dysplastic tissues (P<0.001) or carcinoma in situ (P<0.001). Significant difference was also observed between mild dysplasia and severe dysplasia (P<0.001) or carcinomain situ (P<0.001). An overall trend toward increased staining intensity with increasing grade of dysplasia was found. There was a linear correlation between grade of lesions and staining intensity (r=0.794,P<0.001). Samples from esophageal cancer showed no higher levels of expression than those in severely dysplastic lesions (P>0.05).
CONCLUSION: The abnormal expression of this plantassociated human cancer antigen in esophageal lesions is a frequent and early finding in the normal-dysplasiacarcinoma sequence in esophageal carcinogenesis. It might contribute to the carcinogenesis of esophageal cancer. The abnormal expression of this plant-associated human cancer antigen in esophageal lesion tissues may serve as a potential new biomarker for early identification of esophageal cancer. | JunFu PingQu MoLi Hai-MeiTian Zhen-HaiZheng Xin-WenZheng WeiZhang | 2003 | World Journal of Gastroenterology2003，9，6： | 4 |
| 11 | Restart-up Performance of a CFB Boiler after a Sudden Power Failure Accident显示文摘Due to the massive bed materials in its typical main loop,a circulating fluidized bed(CFB)boiler may face greater trouble in operation and restart-up if an unplanned sudden power failure happens in the power plant.This study aims to explore the restart-up performance of a 170 t/h natural circulation CFB boiler after a sudden power failure and evaluate whether the hot restart-up can be realized.The heat transfer process after the restoration of the primary air is modeled.Validating the isothermal property of the bed after the restoration of the power and air supply,the correlation among the accident duration time,bed temperature after the power restores,inlet air temperature,air supply time,and air velocity is proposed.The predicted results indicate that the major influencing factor of the bed temperature during this process is primary air velocity.To provide guidelines for judgment on whether the hot restart-up can be realized,the maximum values of the air supply time and accident duration time for hot restart-up for different types of coals are given.The results show both of them have a rapid decrease as the coal ignition temperature in a CFB boiler increases from 450°C to 650°C,which also means that the coal ignition temperature plays a very important role in the restart-up process.Based on the simulation results of bed temperature during the accident,it is also estimated that the drum level drops by 77.7 mm after 8 hours but still stays in the permissible range. | YAO Yuge JIANG Ling XIAO Huiren DENG Boyu ZHANG Man ZHANG Yang YANG Hairui LYU Junfu | 2022 | Journal of Thermal Science2022，31，3： | 2 |
| 12 | Biologically inspired silk fibroin grafted polyacrylonitrile filtration membrane prepared in ZnCl_2 aqueous solution显示文摘In this study, biologically inspired silk fibroin grafted polyacrylonitrile(SF-g-PAN) filtration membrane was prepared using ZnCl_2 aqueous solution as solvent, avoiding the use of organic solvents. Phase inversion occurred when Zn^(2+)and Cl-ions gradually diffused into water, creating a well-connected ion channel network and the SF-g-PAN filtration membrane was obtained. The membranes were observed by SEM and 3D ultra-depth microscope. The hydrophilic property, pore size distribution and dye rejection of the membrane were investigated. Results showed that the membrane has no finger hole formation because ZnCl_2 aqueous solution has a lower curing rate parameter compared with organic solvents. SF-gPAN membrane possessed good anti-fouling properties and pH sensitivity. The pore size distribution of the SF-g-PAN membrane was 0.25–1.04 nm. The rejection of direct yellow 27(Mw = 662.6) and amaranth(Mw = 604.5) was 96.51% and 30.63%, with the flux of 72.32 L m^(-2) h^(-1) and 73.83 L m^(-2) h^(-1) respectively at0.1 MPa. The SF-g-PAN membrane has a wide range of applications prospect in fine separation, dye desalination, waste water treatment and biomedical fields. | Jingang Li Shuwen Li Xiaohui Wang Fan Fan Kongyin Zhao Junfu Wei Linhua Zhang Dunwan Zhu | 2019 | Chinese Chemical Letters2019，30，1： | 2 |
| 13 | Adsorption of phthalic acid esters (PAEs) by amphiphilic polypropylene nonwoven from aqueous solution: The study of hydrophilic and hydrophobic microdomain显示文摘 | Xiangyu Zhou Junfu Wei Huan Zhang Kai Liu Han Wang | 2014 | Journal of Hazardous Materials2014，，： | 2 |
| 14 | The performance of university spin-offs: an exploratory analysis using venture capital data显示文摘 | Junfu Zhang | 2009 | The Journal of Technology Transfer2009，，34： | 1 |
| 15 | The performance of university spin-offs:an exploratory analysis using venture capital data显示文摘 | Junfu Zhang | | 0，，： | 1 |
| 16 | A study of microstructural and electrochemical properties of ultrathin DLC coatings on AITiC substrates deposited using the ion beam technique显示文摘 | Liu Zhihui Zhao Junfu Mclaughlin J | 1999 | Diamond and Related Materials1999，8，1： | 1 |
| 17 | Preparation of cation exchange fiber by pre-radiation induced grafting of acrylic acid without removal of the inhibitor显示文摘 | Wei Junfu Zhao Kongyin Zhang Huan | | 0，，： | 1 |
| 18 | Comprehensive mathematical model for coal combustion in the circulating fluidized bed combustor显示文摘 | Jin Xiaozhong Lu Junfu Yang Hairui | | Tsinghua Science and Technology0，6，4： | 1 |
| 19 | Tipping and residential segreation:a unified schelling model 显示文摘 | Junfu Zhang | 2011 | Journal of Re- gional Science2011，，2： | 1 |
| 20 | Growing silicon valley on a landscape: an agent based approach to high tech industrial clusters 显示文摘 | ZHANG JUNFU | 2003 | Journal of Evolutionary Economics2003，13，5： | 1 |
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