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Dive into the research topics where Dietmar Kuhn is active.

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Featured researches published by Dietmar Kuhn.


Tm-technisches Messen | 2006

Tomographische Laser-Doppler-Anemometrie (TLDA) – ein neues Verfahren zur Steigerung der Ortsauflösung (Tomographic Laser Doppler Anemometry (TLDA) – a New Method to increase Spatial Resolution)

Gerald Fast; Dietmar Kuhn; Andreas G. Class

Bei der Geschwindigkeitsmessung mittels Laser-Doppler-Anemometrie (LDA) kann das Messvolumen meist als punktförmig betrachtet werden. Einige Anwendungen erfordern eine noch höhere örtliche Auflösung, die mit konventionellen Methoden nicht verbessert werden kann. In dieser Arbeit wird ein Algorithmus vorgestellt, mit dem die örtliche Auflösung des Messvolumens durch ein tomographisches Verfahren deutlich gesteigert werden kann. Anhand künstlich generierter Geschwindigkeitsfelder und Partikelverteilungen werden Messwerte für die Verifikation generiert. Das Verfahren eignet sich für optische Messtechniken, bei denen die Messgröße diskret verteilt vorliegt. In some applications the finite size of the probe volume of a Laser Doppler Anemometry (LDA) system limits its spatial resolution. Conventional methods to increase resolution often fail because of geometrical constraints. In this work a tomographic algorithm is presented to increase the spatial resolution of the LDA. The integral information on velocity and particle density within the probe volume is analyzed to obtain sub-volume resolution, which is limited by the increment of traversing the probe volume through the flow field. Employing an artificial velocity field the algorithm is verified and demonstrates its applicability to other measurement techniques with discrete measurand distribution.


Geothermal Energy | 2017

Correction to: Flow-through experiments on the interaction of sandstone with Ba-rich fluids at geothermal conditions

Pia Orywall; Kirsten Drüppel; Dietmar Kuhn; Thomas Kohl; Michael Zimmermann; Elisabeth Eiche

After publication of the article (Orywall et al. 2017), it has been brought to our attention that there are a number of errors. The authors have listed them below.


Applied Thermal Engineering | 2013

Comparison of sub- and supercritical Organic Rankine Cycles for power generation from low-temperature/low-enthalpy geothermal wells, considering specific net power output and efficiency

Christian Vetter; Hans-Joachim Wiemer; Dietmar Kuhn


Energies | 2014

Thermal-Economic Modularization of Small, Organic Rankine Cycle Power Plants for Mid-Enthalpy Geothermal Fields

Yodha Y. Nusiaputra; Hans-Joachim Wiemer; Dietmar Kuhn


Chemical Engineering & Technology | 2007

Conversion of Biomass Based Slurry in an Entrained Flow Gasifier

U. Santo; H. Seifert; T. Kolb; Lambert Krebs; Dietmar Kuhn; Hans-Joachim Wiemer; Emmanouil Pantouflas; Nikolaos Zarzalis


Flow Turbulence and Combustion | 2012

Formaldehyde-LIF of Dimethyl Ether During Auto-ignition at Elevated Pressures

Henning Haessler; Henning Bockhorn; Christian Pfeifer; Dietmar Kuhn


Energy technology | 2017

Integrated Research as Key to the Development of a Sustainable Geothermal Energy Technology

Carola Meller; Judith Bremer; Kumar Ankit; Sabine Baur; Thomas Bergfeldt; Philipp Blum; Tina Canic; Elisabeth Eiche; Emmanuel Gaucher; Veit Hagenmeyer; Frank Heberling; Sebastian Held; Sarah Herfurth; Jörg Isele; Tobias Kling; Dietmar Kuhn; Dominik Mayer; Birgit Müller; Britta Nestler; Thomas Neumann; Fabian Nitschke; A. Nothstein; Yodha Y. Nusiaputra; Pia Orywall; Max Peters; David P. Sahara; Thorsten Schäfer; Eva Schill; Frank R. Schilling; Elisabeth Schröder


Archive | 2010

Coupled measurement of droplet size distribution and velocity distribution in a fuel spray with digital imaging analysis under elevated pressure

Christian Pfeifer; Dietmar Kuhn; Andreas G. Class


Chemie Ingenieur Technik | 2006

Erzeugung von Synthesegas aus biomassestämmigen Slurries im Flugstromvergaser

U. Santo; Dietmar Kuhn; Hans-Joachim Wiemer; Emmanouil Pantouflas; Nikolaos Zarzalis; H. Seifert; T. Kolb


Geothermal Energy | 2017

Flow-through experiments on the interaction of sandstone with Ba-rich fluids at geothermal conditions

Pia Orywall; Kirsten Drüppel; Dietmar Kuhn; Thomas Kohl; Michael Zimmermann; Elisabeth Eiche

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Hans-Joachim Wiemer

Karlsruhe Institute of Technology

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Pia Orywall

Karlsruhe Institute of Technology

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Thomas Kohl

Karlsruhe Institute of Technology

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Andreas G. Class

Karlsruhe Institute of Technology

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Christian Pfeifer

Karlsruhe Institute of Technology

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Yodha Y. Nusiaputra

Karlsruhe Institute of Technology

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Alain Dimier

Karlsruhe Institute of Technology

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Elisabeth Eiche

Karlsruhe Institute of Technology

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Gerald Fast

Karlsruhe Institute of Technology

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Elisabeth Schröder

Karlsruhe Institute of Technology

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