Jun Li

Xi'an Jiaotong University, Ch’ang-an, Shaanxi, China

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Publications (86)109.16 Total impact

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    ABSTRACT: As a member of the ternary metal oxide family, nickel cobaltite is considered as a promising electrode material. This is due to its high theoretical capacity, low diffusional resistance to protons, ease of electrolyte penetration, superior ionic/electronic conductivity and higher electrochemical activity compared to single metallic oxides such as NiO or Co3O4. However, NiCo2O4's relatively low electrical conductivity and its tendency to pulverize due to the volume changes experienced during the charge–discharge process remain a pressing issue to be solved. Here we demonstrate a simple co-precipitation and calcination routine to graft ultrathin NiCo2O4 nanosheets onto highly-ordered mesoporous carbon CMK-3 to form a new mesoporous-nanosheet structure which can accommodate stresses induced by volume changes and provide favourable conducting paths. The material exhibits a high specific surface area and excellent electrochemical performance, which can be ascribed to the ultrathin NiCo2O4 nanosheets and the interconnected conductive network of the mesoporous matrix. The nanosheets and the inner channels of CMK-3 are more beneficial to the diffusion of Li+ while the interconnected conductive network favours fast electron conduction.
    Full-text · Article · Apr 2016
  • Jun Li · Kun Du · Liming Song
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    ABSTRACT: The inevitable transonic tip leakage flow in unshrouded high pressure gas turbines induces aerodynamic loss and gives rise to heavy thermal loads on the blade tip. In the pursuit of superior gas turbine engine, cavity tips are widely used in high-pressure turbines to reduce the over-tip leakage flow. The present research aims to numerically investigate the influence of the depth of cavity and thickness of squealer rim on the aerothemal performance of the transonic turbine blade. Three-dimensional (3D) Reynolds-Averaged Navier-Stokes (RANS) equations with Spalart-Allmaras turbulence were solved to perform the simulation. The obtained results indicate that the variations of the cavity depth and squealer rim thickness have significant effects on the aerothermal performance of the transonic turbine blade tip regions. The phenomena in this transonic setup are different from the results obtained in subsonic condition. This study quantified that the improvement of aerodynamic efficiency contributed to the enhancement of heat flux on the blade tip in transonic condition by changing the geometry of tip cavity.
    No preview · Article · Jan 2016 · Proceedings of the Institution of Mechanical Engineers Part A Journal of Power and Energy
  • Liming Song · Jun Li · Kesong Wen
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    ABSTRACT: Aerodynamic performance of partial admission dual row control stage at the rated and off-designed operating conditions was numerically investigated using three-dimensional Reynolds-averaged Navier-Stokes (RANS) and k -ε turbulence model. The full scale computational model includes the four nozzle boxes, full first and second row rotor blade, as well as two admission guided vanes with consideration of the rotor tip clearance and stator diaphragm gland. The numerical results of the mass flow rate, power output and aerodynamic efficiency of the dual row control stage at the rated and off-designed conditions are well in agreement with the experimental data. The obtained results at rated condition show that the blocking segmental arc of guided vane increased the exit pressure of the upstream nozzle, which reduced the mass flow rate and changed the aerodynamic performance of the nozzle. The circumferential non-uniformity of aerodynamic parameters and partial admission losses increases with the decrease in the admission degree for the computed three operating conditions. The analysis of axial steam velocity shows that the trailing shedding vortex and the complex flow vortex in flow passages have a significant impact on the magnitude and direction of the axial steam velocity. Furthermore, the partial admission degree changed the proportions of the power output of two rotor blade rows. The lower partial admission degree leads to a larger proportion of the power output of the first rotating blade row. The detailed flow pattern in the partial admissions dual row control stage at different operating conditions is also illustrated.
    No preview · Article · Jan 2016 · Journal of Mechanical Science and Technology
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    ABSTRACT: Background/aim: Inflammatory cytokines is a key point in the development of pathogenesis of SAP. Inflammatory mediators TNF-α and IL-6 are up-regulated in serum of patients with SAP and become good discriminators of SAP severity. Materials and methods: In this study, we investigated the treatment effectiveness of Baicalein on SAP rat model. Baicalein was intravenously injected immediately after SAP induction in rats. The mortality, histopathology score, ascites fluid volume, and pro-inflammatory cytokine production were evaluated at 12 h after SAP induction. Results: Baicalein decreased the pancreatic histopathology score, reduced ascites fluid production, protected against pancreatic injury, and improved survival in rats with SAP. The serum IL-6 and TNF-α concentrations were also down-regulated by Baicalein. Conclusion: Baicalein demonstrated a well curative capability on rats with SAP. The mechanism may be alleviateing pancreatic injury and inhibiting pro-inflammatory cytokines expression.
    Preview · Article · Sep 2015 · Biochemical and Biophysical Research Communications
  • Zhigang Li · Jun Li · Zhenping Feng
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    ABSTRACT: Pocket damper seals (PDSs) are used as replacements for labyrinth seals in high-pressure centrifugal compressors at the balance-piston location or center seal location to enhance rotordynamic stability. A concern exists that this enhanced stability will be lost at high positive inlet preswirl. Numerical results of frequency-dependent rotordynamic force coefficients and leakage flow rates were presented and compared for a fully partitioned PDS (FPDS) and a labyrinth seal at high positive and negative inlet preswirl, using a proposed transient computational fluid dynamics (CFD) method based on the multifrequency elliptical orbit whirling model. The negative preswirl indicates a fluid swirl in a direction opposite to rotor rotation at seal inlet. Both seals have identical diameter and sealing clearance. The full 3D concentric CFD model and mesh were built for the labyrinth seal and FPDS, respectively. The accuracy and availability of the present transient CFD numerical method were demonstrated with the experiment data of frequency-dependent rotordynamic coefficients of the labyrinth seal and FPDS at zero and high positive preswirl conditions. The numerical boundary conditions include two high positive preswirl, two high negative preswirl, and a zero preswirl. Numerical results show that the effect of inlet preswirl on the direct force coefficients is weak, but the effect on the cross-coupling stiffness and effective damping is dramatic. Both seals possess negative effective damping at lower excitation frequencies due to positive preswirl, and the crossover frequency of effective damping term increases with increasing positive preswirl. Negative preswirl produces negative cross-coupling stiffness and positive effective damping over the whole excitation frequency range. Increasing negative preswirl is a stabilizing factor for annular gas seals, which results in a significant increase in the effective damping and a decrease in the crossover frequency. It is desirable to reduce the inlet preswirl to zero or even negative through applications of negative-swirl brakes and negative injection devices.
    No preview · Article · Sep 2015 · Journal of Engineering for Gas Turbines and Power
  • Xin Yan · Kun He · Jun Li · Zhenping Feng
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    ABSTRACT: The improvement in rotordynamic performance of the annular gas seal requires efficient and accurate prediction methods of rotordynamic coefficients. Although the existed transient computational fluid dynamics (CFD) methods in published literature have excellent numerical accuracy, most of them face the challenge due to rotordynamic coefficients at every excitation frequency to be solved by a separate transient CFD prediction thus much time-consuming. In this paper, a generalized prediction method is proposed to address this difficulty. Based on the Laplace transform method, the solution procedures for the reaction force/motion equation of the annular gas seal are deduced. With the specified excitations (rotor motion), the rotordynamic coefficients at all excitation frequencies can be solved by only one or two transient CFD solutions. To verify the present generalized method, the rotordynamic coefficients of two typical hole-pattern seals are computed and compared to the available experimental data. The results show that the predicted rotordynamic coefficients are in good agreement with the experimental tests. Compared to the previous transient CFD methods, the computational time of the present generalized method is reduced significantly while the accuracy is still maintained.
    No preview · Article · Sep 2015 · Journal of Engineering for Gas Turbines and Power
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    ABSTRACT: An automated three-dimensional multi-objective optimization and data mining method is presented by integrating a self-adaptive multi-objective differential evolution algorithm (SMODE), 3D parameterization method for blade profile and meridional channel, Reynolds-averaged Navier-Stokes (RANS) solver technique and data mining technique of self-organizing map (SOM). Using this method, redesign of a high pressure ratio centrifugal impeller is conducted. After optimization, 16 optimal Pareto solutions are obtained. Detailed aerodynamic analysis indicates that the aerodynamic performance of the optimal Pareto solutions is greatly improved. By SOM-based data mining on optimized solutions, the interactions among objective functions and significant design variables are analyzed. The mechanism behind parameter interactions is also analyzed by comparing the data mining results with the performance of typical designs.
    No preview · Article · Sep 2015 · Journal of Engineering for Gas Turbines and Power
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    ABSTRACT: Molybdenum disulfides and carbides are effective catalysts for hydrogenation and hydridesulfurization, where MoS2 nanostructures are also highly promising materials for lithium ion batteries. High surface-to-volume ratio and strong interactions with conducting networks are crucial factors for their activities. A new hybrid structure of multi-walled carbon nanotube (MWCNT) with alternate MoC nanoparticles and MoS2 nanosheets (MoS2+MoC-MWCNT) has been synthesized by controlled carburization of core shell MoS2-MWCNT hybrid nanotubes and demonstrated by HRTEM, FFT, XRD, and Raman scattering. The MoS2 nanosheets (~10 nm) remain tightly connected to MWCNT surfaces with {001} planes in parallel to MWCNT walls and the highly crystallized α-MoC particles (~10 nm) are adhered to MWCNTs at angles of 60-80º between {111} planes and MWCNT walls. The electrochemical performances of the hybrid structures have been demonstrated as anodes for lithium ion batteries to be significantly increased by breaking MoS2 nanotubes into nanosheets (patches) on MWCNT surfaces, especially at high current rates. The specific capacities of MoS2+MoC-MWCNT sample with ~23% MoS2 have been demonstrated to be higher than those of MoS2-MWCNTs containing ~70% MoS2.
    Full-text · Article · Jul 2015 · Nano Letters
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    ABSTRACT: Abstract In this paper, a numerical simulation is performed to predict swirl cooling of an internal leading edge cooling passage model for a gas turbine blade. The swirling cooling performance and its effectiveness are investigated for cases of two rectangular section inlets that cause flow to impinge tangentially on the internal surface of the circular cooling passage. The effects of aspect ratio of the jet nozzle, jet angle and Reynolds numbers on the local and average flows and heat transfer are investigated. The results indicate that the pressure loss and global area weighted average Nusselt number on the swirl chamber increases with increases of Reynolds number, and increases with decreases of the jet nozzle aspect ratio. A correlation of the area weighted average Nusselt number over a range of parameters is suggested. The distribution of Nusselt number over the swirl chamber shows that the thermal stresses will be lowest with a 60° jet nozzle angle.
    No preview · Article · Jul 2015 · International Journal of Heat and Mass Transfer
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    ABSTRACT: A conjugate heat transfer simulation of air in a rectangular cooling channel with 45-deg ribs is presented in this paper. The test channel length is 400mm and the ratio of width to height is 1. The hydraulic diameter of the channel is 40mm and the thickness of channel wall is 3mm. The rib height is 1.9mm and the distance between nearby ribs is 19mm. The flow field and the temperature field in the solid channel are obtained by using ANSYS CFX. An energy source is added in the solid domain to simulate the Low-Voltage High-Current heating method in the experiment. The GGI method is adopted for the mesh connection between the fluid domain and solid domain. The SST turbulence model and automatic wall function in ANSYS CFX are used to simulate the flow and heat transfer in near-wall region. The numerical results show great agreement with the experimental data. The temperature distribution on the channel outer wall is shown and analyzed. The Nusselt number field on the channel wall is shown and illustrated by the flow field shown by the Vortex Core Technology. There are four secondary flow vortex cores between ribs in near wall region and a strong secondary flow can be seen in main flow region. The angled ribs leads to the unbalanced temperature and Nusselt number field on the outer wall and the inner wall of the channel respectively. The distribution law of the Nusselt number on inner wall is not similar with the one of temperature on the outer wall. But the overall distribution of outer wall temperature field is more homogeneous compared with that of the inner wall Nusselt number. Some recommendations for optimization are given based on the flow field and Nusselt number distribution.
    Full-text · Conference Paper · Jul 2015
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    ABSTRACT: Resistance to macrolides, lincosamides and streptogramin B antibiotics (MLSB) is not restricted to staphylococci from clinical samples but can also be present in staphylococci from the aquatic environment. Two coagulase-negative staphylococci - Staphylococcus xylosus and Staphylococcus saprophyticus were obtained from sewage and receiving river water samples and were investigated for the genetic basis of inducible MLSB resistance by whole genome sequencing. Two rRNA methylases, encoded by erm(44) and a novel Erm(44) variant were identified, which had only 84% amino acid identity. While fragments of phage DNA were found in the vicinity of the erm(44) gene of S. xylosus, no relics of mobile genetic elements were detected in the sequences flanking the erm(44) variant gene in the S. saprophyticus strain. The functionality of the erm genes was confirmed by cloning and transformation experiments. Based on the obtained sequences, specific PCR assays for both erm genes were developed and used to identify erm(44) in another seven S. xylosus and 17 S. saprophyticus isolates from aquatic environments. © FEMS 2015. All rights reserved. For permissions, please e-mail: journals.permissions@oup.com.
    No preview · Article · Jul 2015 · FEMS Microbiology Ecology
  • Xin Yan · Kun He · Jun Li · Zhenping Feng
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    ABSTRACT: The rotordynamic characteristic of the hole-pattern seals with two different hole-diameters was investigated using the unsteady Reynolds-averaged Navier-Stokes (URANS) equations solutions and bulk flow methods. The mesh deformation method combined with elliptical orbit model was adopted to numerically solve the transient flow fields. By integrating the transient reaction forces on the rotor surface, the rotordynamic coefficients of the holepattern seals at a set of excitation frequencies were obtained with the reaction-force/ motion model. The effects of mesh density, constant temperature assumption, and turbulence model on the numerical accuracy were analyzed for both large hole-diameter holepattern (LDHP) and small hole-diameter hole-pattern (SDHP) seals. The comparisons between the two bulk flow methods (i.e., the isothermal bulk flow method (ISOTSEAL) and the ideal gas bulk flow method with energy equation (ideal gas bulk flow model)) and transient computational fluid dynamics (CFD) method were performed. It shows that, compared to the experimental data, the isothermal URANS (constant temperature assumption) and total energy URANS (consider the temperature varying) solutions almost have the same accuracy with respect to the rotordynamic coefficients predictions. However, for the direct damping coefficient predictions, the total energy URANS method has a slight advantage over the isothermal URANS for both SDHP and LDHP cases. For the LDHP seal, the predicted rotordynamic coefficients are not sensitive to the selected turbulence models, but as the hole-diameter becomes smaller, the effect of turbulence model on the numerical accuracy becomes pronounced. Among the studied numerical methods, the isothermal URANS solutions with standard k-ε turbulence model have a good performance taking both numerical accuracy and computational time into consideration. For the SDHP seal, the present ideal gas bulk flow method and ISOTSEAL can provide the reasonable predictions of the rotordynamic coefficients. However, for the LDHP seal, both of them show a low accuracy in predicting the rotordynamic coefficients.
    No preview · Article · Jul 2015 · Journal of Turbomachinery
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    ABSTRACT: The secondary flow which is generated by the angled rib is one of the key factors of heat transfer enhancement in gas turbine blade cooling channels. However, the current studies are all based on the velocity vector and streamline, which limit the research on the detailed micro-structure of secondary flow. In order to make further targeted optimization on the flow and heat transfer in the cooling channels of gas turbine blade, it is necessary to firstly investigate the generation, interaction, dissipation and the influence on heat transfer of secondary flow with the help of new topological method. This paper reports the numerical study of the secondary flow and the effect of secondary flow on heat transfer enhancement in rectangular two-pass channel with 45° ribs. Based on the vortex core technology, the structure of secondary flow can be clearly shown and studied. The results showed that the main flow secondary flow is thrown to the outer side wall after the corner due to the centrifugal force. Then it is weakened in the second pass and a new main flow secondary flow is generated at the same time near the opposite side wall in the second pass. The Nusselt number distribution has also been compared with the secondary flow vortex core distribution. The results shows that the heat transfer strength is weakened in the second pass due to the interaction between the old main flow secondary flow and the new one. These two secondary flows are in opposite rotation direction, which reduces the disturbance and mass transfer strength in the channel.
    Full-text · Conference Paper · Jun 2015
  • Zhigang Li · Jun Li · Zhenping Feng
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    ABSTRACT: The three-dimensional (3D) transient computational fluid dynamic (CFD) method was proposed to predict rotordynamic coefficients for annular gas seals. This transient CFD method uses unsteady Reynolds-Averaged Navier-Stokes (RANS) solution technique and mesh deformation theory, which requires a rotor whirling model as the rotor excitation signal to solve the transient leakage flow field in seal and obtain the transient fluid response forces on the rotor surface. A fully partitioned pocket damper seal (FPDS) was taken as the test object to validate the present numerical method. Comparisons were made between experimental data and rotordynamic coefficient predictions using the three variations of the single-frequency and multiple-frequency rotor whirling models: (1) one-dimensional whirling model, (2) circular orbit whirling model, and (3) elliptical orbit whirling model. The numerical results show that the rotordynamic coefficients predicted by the present CFD method and six different rotor whirling models all agree well with the experiment data, and nearly coincide for all rotor whirling models. The proposed transient CFD method can be used to perform a reasonably accurate prediction of the frequency-dependent rotordynamic coefficients for annular gas seals based on any one of the present six rotor whirling models, as long as ensuring the combination of these whirling model parameters captures the small perturbation theory. The rotor whirling parameters such as whirling orbit, amplitude, and frequency number are important in predicting rotor whirling motion and fluid response forces, but have almost no effect on the computed rotordynamic coefficients. The benefit of the multiple-frequency rotor whirling models is the ability to calculate accurate rotordynamic coefficients of annular gas seals in a wide frequency range with a simulation time on the order of one-tenth the cost of the single-frequency whirling models.
    No preview · Article · Jun 2015 · Journal of Tribology
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    ABSTRACT: The oxazolidinone-resistant Enterococcus faecalis E349 from a human patient tested negative for the cfr gene and 23S rRNA mutations. Here we report the identification of a novel oxazolidinone resistance gene, optrA, and a first investigation of the extent to which this gene was present in E. faecalis and Enterococcus faecium from humans and food-producing animals. The resistance gene optrA was identified by whole-plasmid sequencing and subsequent cloning and expression in a susceptible Enterococcus host. Transformation and conjugation assays served to investigate the transferability of optrA. All optrA-positive E. faecalis and E. faecium isolates of human and animal origin were analysed for their MICs and their genotype, as well as the location of optrA. The novel plasmid-borne ABC transporter gene optrA from E. faecalis E349 conferred combined resistance or elevated MICs (when no clinical breakpoints were available) to oxazolidinones (linezolid and tedizolid) and phenicols (chloramphenicol and florfenicol). The corresponding conjugative plasmid pE349, on which optrA was located, had a size of 36 331 bp and also carried the phenicol exporter gene fexA. The optrA gene was functionally expressed in E. faecalis, E. faecium and Staphylococcus aureus. It was detected more frequently in E. faecalis and E. faecium from food-producing animals (20.3% and 5.7%, respectively) than from humans (4.2% and 0.6%, respectively). Enterococci with elevated MICs of linezolid and tedizolid should be tested not only for 23S rRNA mutations and the gene cfr, but also for the novel resistance gene optrA. © The Author 2015. Published by Oxford University Press on behalf of the British Society for Antimicrobial Chemotherapy. All rights reserved. For Permissions, please e-mail: journals.permissions@oup.com.
    No preview · Article · May 2015 · Journal of Antimicrobial Chemotherapy
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    ABSTRACT: Carbon nanotube hybrids with molybdenum and tungsten disulfides have attracted lots of attentions due to their unique electronic and photonic properties. MoS2 and WS2 with different layers and morphology have been produced from homogeneous ultra-fine MoO3 and WO3 nanoparticles (1–2 nm) with different densities on multi-walled carbon nanotubes (MWCNTs) in this work. The different MWCNT hybrid structures not only provide the investigation feasibility of exciton transfer but also give potential applications of catalysts and batteries. A facile method, ultra-sonication, has been adopted to produce MWCNT hybrids with homogeneous ultra-dense and ultra-fine MoO3 and WO3 nanoparticles. The as-produced molybdenum trioxide nanoparticles and free-standing molybdenum trioxide nanowires from the same method with different reaction time have been found to crystallize in different crystal lattices. The nanoparticle morphology leads to the detachment of H2O from molybdenum trioxide lattices, which was confirmed by thermodynamic analysis based on density functional theory. MWCNT hybrids with layered MoS2 and WS2 are preferred after the sulfuration of MoO3 and WO3 nanoparticle-MWCNT hybrid structures. The layers and morphology of MoS2 and WS2 have been controlled by the densities of trioxide nanoparticle precursors on MWCNTs.
    Full-text · Article · Apr 2015 · Carbon
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    ABSTRACT: The current carbon-based energy system is undergoing a profound change driven by the increased concerns over the longevity and security of energy supply, as well as energy-related emissions of carbon dioxide and air pollutions. The evolutionary trend of this transition is toward a smart energy network of the future that is characterized by widespread deployment of clean energy technologies and intelligent energy management technologies. In this transition, hydrogen and fuel/electrolysis cell technologies have crucial roles to play in developing the smart energy network, which is particularly captured in this work. The features of the future energy system, i.e., the smart energy network, are illustrated. In particular, the visions from technical aspects for the deployment of battery-based electric vehicles and fuel-cell-based electric vehicles are discussed. The key technologies and its current status for the smart energy network are reviewed.
    Full-text · Article · Mar 2015 · International Journal of Hydrogen Energy
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    ABSTRACT: C-doped TiO2 nanoplates (CTNP) with exposed {001} facets were successfully synthesized by hydrothermal treatment of TiC powder in a HF–HNO3 mixed aqueous solution for the first time. The effects of hydrothermal temperature (140, 160, 180 and 200 °C) on the crystal phase, morphology, specific surface area and porous properties, surface element composition, optical response properties of the resultant samples were investigated in detail, and the photocatalytic activities of these obtained CTNP samples for the degradation of methylene blue (MB) were evaluated under visible light irradiation. The results showed that precursor cubic TiC was transformed into anatase TiO2 with the morphology of well-defined nanoplate completely after hydrothermal treatment for 30 h. The specific surface area of CTNP was significantly improved in comparison with that of micrometer sized C-doped TiO2 plates (CTP) due to smaller particle size. Due to C-doping, CTNP presented red-shift absorption edge, which supported it with strong visible-light response. All these factors led to as-prepared CTNP having more excellent visible-light photocatalytic activity in comparison with micrometer sized CTP. The CTNP synthesized at 180 °C presented the optimal visible-light photocatalytic activity with a high reaction rate constant (0.03692 min−1) among the four CTNP samples. Based on the results of the present study, a reasonable mechanism of photocatalysis on CTNP under visible light was proposed.
    No preview · Article · Feb 2015 · RSC Advances
  • Zhao Liu · Jun Li · Zhenping Feng
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    ABSTRACT: In this paper, a numerical simulation is conducted to predict the swirl cooling performance of an internal leading-edge cooling passage model for a gas turbine blade. The swirling cooling performance and its effectiveness are investigated in the caseoftwo rectangular section inlets that cause flow to impinge tangentially onthe internal surface of the circular cooling passage. Parametric analysisonthe local and average flows and heat transfers are performed at various Reynolds numbers, as well as the ratio of swirl chamber radius to jet slot height for a constant ratio of swirl chamber radius to jet nozzle length and constant jet nozzle area, respectively. The results indicate that the position of the swirl flow center is changing along the axial of the swirl chamber, and the swirl flow center of one constant axial section is not uniform as well in different ratios of swirl chamber radius to jet slot height. The larger ratio of swirl chamber radius to jet slot height and the higher Reynolds number are desirable to improve the performance of swirl cooling on the turbine blade leading edge, although the pressure loss of the swirl chamber will increase. Copyright © 2014 by the American Institute of Aeronautics and Astronautics, Inc.
    No preview · Article · Jan 2015 · Journal of Thermophysics and Heat Transfer
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    ABSTRACT: Hierarchical NiCoO2 nanosheets nanotubes are successfully prepared by a mild solution method based on the template of polymeric nanotubes (PNT) followed by a thermal annealing treatment. The microstructure and chemical composition of NiCoO2 nanosheets nanotubes are characterized by scanning electron microscopy (SEM), transmission electron microscopy (TEM), Brunaue-Emmett-Teller (BET) analyzer, X-ray diffraction (XRD) and Thermogravimetric analysis (TGA). When evaluated as an electrode material for supercapacitors, the results of electrochemical test show that the unique NiCoO2 nanosheets nanotubes exhibit relatively high specific capacitance of 1468, 1352, 1233, 1178, 1020 and 672 F g-1 at the discharge current densities of 2, 4, 8, 10, 20 and 40 A g-1, respectively. They also reveal an excellent cycling stability of 99.2% retention after 3000 cycles at 10 A g-1. The smart nanostructures of the NiCoO2 nanosheets nanotubes make a prominent contribution to the excellent electrochemical performance.
    Full-text · Article · Nov 2014 · Journal of Power Sources

Publication Stats

541 Citations
109.16 Total Impact Points

Institutions

  • 2005-2015
    • Xi'an Jiaotong University
      • • School of Energy and Power Engineering
      • • School of Medicine
      Ch’ang-an, Shaanxi, China
  • 2004-2015
    • Shanghai Jiao Tong University
      • Institute of Turbomachinery
      Shanghai, Shanghai Shi, China
  • 2012
    • Shandong Academy of Sciences
      Chi-nan-shih, Shandong Sheng, China
  • 2010-2011
    • State Grid Electric Power Research Institute
      Nan-ching-hsü, Jiangxi Sheng, China