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| 1 | Investigation of the steam-cooled blade in a steam turbine cascade显示文摘With the increasing demand for electricity,an efficiency improvement and thereby reduced CO2 emissions of the coal-fired plants are expected in order to reach the goals set in the Kyoto protocol.It can be achieved by a rise of the process parameters.Currently,live steam pressures and temperatures up to 300 bars and 923 K are planned as the next step.Closed circuit steam cooling of blades and vanes in modern steam turbines is a promising technology in order to establish elevated live steam temperatures in future steam turbine cycles.In this paper,a steam-cooled test vane in a cascade with external hot steam flow is analyzed numerically with the in-house code CHTflow.A parametric analysis aiming to improve the cooling effectiveness is carried out by varying the cooling mass flow ratio.The results from two investigated cases show that the steam cooling technique has a good application potential in the steam turbine.The internal part of the vane is cooled homogeneously in both cases.With the increased cooling mass flow rate,there is a significant improvement of cooling efficiency at the leading edge.The results show that the increased cooling mass flow ratio can enhance the cooling effectiveness at the leading edge.With respect to trailing edge,there is no observable improvement of cooling effectiveness with the increased cooling mass flow.This implies that due to the limited dimension at the trailing edge,the thermal stress cannot be decreased by increasing the cooling mass flow rate.Therefore,impingement-cooling configuration at the trailing edge might be a solution to overcome the critical thermal stress there.It is also observed that the performance of the cooling effective differs on pressure side and suction side.It implicates that the equilibrium of the cooling effectiveness on two sides are influenced by a coupled relationship between cooling mass flow ratio and hole geometry.In future work,optimizing the hole geometry and cooling steam supply conditions might be the solutions for an equivalent cooling effectiveness along whole profile. | Dieter Bohn Jing Ren Karsten Kusterer | 2007 | 航空动力学报2007，22，5： | 6 |
| 2 | Investigation on heat transfer enhancement and pressure loss of double swirl chambers cooling显示文摘By merging two standard swirl chambers,an alternative cooling configuration named double swirl chambers(DSC)has been developed.In the DSC cooling configuration,the main physical phenomena of the swirl flow in swirl chamber and the advantages of swirl flow in heat transfer augmentation are maintained.Additionally,three new physical phenomena can be found in DSC cooling configuration,which result in a further improvement of the heat transfer:(1)impingement effect has been observed,(2)internal heat exchange has been enhanced between fluids in two swirls,and(3)“∞”shape swirl has been generated because of cross effect between two chambers,which improves the mixing of the fluids.Because of all these improvements,the DSC cooling configuration leads to a higher globally-averaged thermal performance parameter(Nu/Nu_(∞)/(f/f0)^(1/3))than standard swirl chamber.In particular,at the inlet region,the augmentation of the heat transfer is nearly 7.5 times larger than the fully developed non-swirl turbulent flow and the circumferentially averaged Nusselt number coefficient is 41%larger than the standard swirl chamber.Within the present work,a further investigation on the DSC cooling configuration has been focused on the influence of geometry parameters e.g.merging ratio of chambers and aspect ratio of inlet duct on the cooling perfomance.The results show a very large influence of these geometry parameters in heat transfer enhancement and pressure drop ratio.Compared with the basic configuration of DSC cooling,the improved configuration with 20%to 23%merging ratio shows the highest globally-averaged themal performance parameter.With the same cross section area in tangential inlet ducts,the DSC cooling channel with larger aspect ratio shows larger heat transfer enhancement and at the same time reduced pressure drop ratio,which results in a better globally-averaged themal performance parameter. | Gang Lin Karsten Kusterer Dieter Bohn Takao Sugimoto Ryozo Tanaka Masahide Kazari | 2013 | Propulsion and Power Research2013，2，3： | 3 |
| 3 | Conjugate calculation of a film-cooled blade for improvement of the leading edge cooling configuration显示文摘Great efforts are still put into the design process of advanced film-cooling configurations.In particular,the vanes and blades of turbine front stages have to be cooled extensively for a safe operation.The conjugate calculation technique is used for the three dimensional thermal load prediction of a fim-cooled test blade of a modern gas turbine.Thus,it becomes possible to take into account the interaction of internal flows,external flow,and heat transfer without the prescription of heat transfer ooefficients.The focus of the investigation is laid on the leading edge part of the blade.The numerical model consists of all internal flow passages and cooling hole rows at the leading edge.Furthermore,the radial gap flow is also part of the model.The comparison with thermal pyrometer measurements shows that with respect to regions with high thermal load a qualitatively and quantitatively good agreement of the conjugate results and the measurements can be found.In particular,the region in the vicinity of the mid-span section is exposed to a higher thermal load,which requires further improvement of the cooling arrangement.Altogether the achieved results demonstrate that the conjugate calculation technique is applicable for reasonable prediction of three-dimensional thermal load of complex cooling configurations for blades. | Norbert Moritz Karsten Kusterer Dieter Bohn Takao Sugimoto Ryozo Tanaka Tomoki Taniguchi | 2013 | Propulsion and Power Research2013，2，1： | 3 |
| 4 | Enterococcus faecalis Metalloprotease Compromises Epithelial Barrier and Contributes to Intestinal Inflammation显示文摘 | Natalie Steck Micha Hoffmann Irina G. Sava Sandra C. Kim Hannes Hahne Susan L. Tonkonogy Katrin Mair Dagmar Krueger Mihaela Pruteanu Fergus Shanahan Roger Vogelmann Michael Schemann Bernhard Kuster R. Balfor Sartor Dirk Haller | 2011 | Gastroenterology2011，，3： | 2 |
| 5 | p-InGaAs/n-InGaAs MSM光电探测器研究显示文摘本文首次对具有p-InGaAs肖特基势垒增强层的p-InGaAs/n-InGaAs MSM光电探测器做了较系统研究。实验结果表明:具有20nm厚增强层器件的暗电流为3.5×10(-11)A(5伏,30×40μm^2);而具有40nm厚增强层器件的FWHMM为350ps(6伏)。 | 史常忻 A.Mesquida Kusters A.Kohl R.Muller K.Heime | 1993 | Journal of Semiconductors1993，14，3： | 2 |
| 6 | Quantitative mass spectrometry in proteomics: critical review update from 2007 to the present显示文摘 | Marcus Bantscheff Simone Lemeer Mikhail Savitski Bernhard Kuster | 2012 | Analytical and Bioanalytical Chemistry2012，，4： | 2 |
| 7 | On definition of reactive power under non-sinusoidal conditions显示文摘 | Kusters N I Moore W J M | 1980 | IEEE Transactions on Power Apparatus and Systems1980，99，5： | 2 |
| 8 | On the definition of reactive power under non-sinusoidal conditions显示文摘 | Kusters N L | 1980 | IEEE Transactions on Power Apparatus and Systems1980，99，5： | 2 |
| 9 | Analysis of intrahepatic HBV-specific cytotoxic T-cells during and after acute HBV infection in humans显示文摘 | Dave Sprengers Renate G. van der Molen Johannes G. Kusters Robert A. De Man Hubert G.M. Niesters Solko W. Schalm Harry L.A. Janssen | 2006 | Journal of Hepatology2006，，2： | 2 |
| 10 | Aero Thermal Investigations of Mixing Flow Phenomena in Case of Radially Inclined Ejection Holes at the Leading Edge显示文摘 | Bohn D E Kusterer K A | 2000 | Transactions of the ASME2000，122，： | 1 |
| 11 | Development of bioinformatic tools to support EST-sequencing, in silico and microarray-based transcriptome profiling in mycorrhizal symbioses 显示文摘 | KUSTER H BECKER A FIRNHABER C | 2007 | Phytochemistry2007，68，1： | 1 |
| 12 | B-type natriuretic peptide for diagnosis and treatment of congestive heart failure显示文摘 | Tanner H Printzen G | 2003 | Swiss Med Wkly2003，133，3： | 1 |
| 13 | B - type natriuretic peptide for diagnosis and treatment of congestive heart failure 显示文摘 | Kuster GM Tanner H Printzen G | 2003 | Swiss Med Wkly2003，133，3： | 1 |
| 14 | Comprehensive Identification of Proteins from MALDI Imaging显示文摘 | Stefan K. Maier Hannes Hahne Amin Moghaddas Gholami Benjamin Balluff Stephan Meding Cédrik Schoene Axel K. Walch Bernhard Kuster | 2013 | Molecular & Cellular Proteomics2013，，10： | 1 |
| 15 | Compressor cascade flow with strong shock wave/boundary-layer interaction显示文摘 | Kusters B Schreiber A | 1998 | AIAA Journal1998，36，11： | 1 |
| 16 | Mineralocorticoid receptor inhibition ameliorates the transition to myocardial failure and decreases oxidative stress and inflammation in mice with chronic pressure overload 显示文摘 | Kuster GM Kotlyar E Rude MK | 2005 | Circulation2005，111，4： | 1 |
| 17 | Dopamine D3 receptors in the rat kidney:role in physiology and pathophysiology显示文摘 | Kuster E Luippold G | 2000 | Acta Physiol Scand2000，168，： | 1 |
| 18 | Urease induced calcium precipitation by Helicobacter species may initiate gallstone formation显示文摘 | Belzer C Kusters JG Kuipers E J | 2006 | Gut2006，55，11： | 1 |
| 19 | Velocity and attenuation of seismic waves in two phase media: Part I: Theoretical formulation 显示文摘 | Kuster G T Toks(o)z M N | 1974 | Geophysics1974，39，： | 1 |
| 20 | Enantioselective synthesis of protected cyanohydrins显示文摘 | Veum L Kuster M Telalovic S | 2002 | Eur J Org Chem2002，9，15： | 1 |
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