National Library of Energy BETA

Sample records for technische thermodynamik pfaffenwaldring

  1. Technischer Warenhandel Heller | Open Energy Information

    Open Energy Info (EERE)

    Heller Place: Germany Product: A trade agency for quartz, raw silicon, ingots, wafers, cells and modules. References: Technischer Warenhandel Heller1 This article is a stub. You...

  2. German Technische Universitat Darmstadt Wins DOE's 2007 Solar Decathlon |

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Department of Energy German Technische Universitat Darmstadt Wins DOE's 2007 Solar Decathlon German Technische Universitat Darmstadt Wins DOE's 2007 Solar Decathlon October 19, 2007 - 3:21pm Addthis University of Maryland Takes 2nd Place; Santa Clara University Takes 3rd Place WASHINGTON, DC - Germany's Technische Universitat Darmstadt has earned top honors in the U.S. Department of Energy's Solar Decathlon competition on the National Mall in Washington, DC. Over the past two weeks, the 2007

  3. German Technische Universitat Darmstadt Wins DOE's 2007 Solar...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    ten contests, Communications, as well as Lighting, Comfort Zone, Appliances, Hot Water, Energy Balance, and Getting Around are each worth up to 100 points. The Architecture...

  4. Cascade reactions with Technische UniversitätMünchen (TUM)...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    ... MFI has more sustained performance Kinetic data for alkylation over various types of zeolite at 250 C Catalyst Si Al ratio initial Rate mol catechol g catalyst h K* 1 h ...

  5. Browse by Discipline -- E-print Network Subject Pathways: Biotechnolog...

    Office of Scientific and Technical Information (OSTI)

    ... Anisotropy Project Eidgenssische Technische Hochschule Zrich (ETHZ), Department of Civil, Environmental and Geomatics Engineering, Geodetic Metrology and Engineering Geodesy

  6. Statement from Secretary of Energy Samuel W. Bodman Regarding...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    EIA's Updated Annual Energy Outlook EIA Report Estimates Growth of U.S. Energy Economy Through 2040 German Technische Universitat Darmstadt Wins DOE's 2007 Solar Decathlon

  7. Named Fellowships Luminary - Eugene Wigner | Argonne National...

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    (today the Technische Universitt Berlin). In the late 1920s, Wigner explored quantum mechanics. He laid the foundation for the theory of symmetries in quantum...

  8. Browse by Discipline -- E-print Network Subject Pathways: Engineering...

    Office of Scientific and Technical Information (OSTI)

    Dennis L. (Dennis L. Eggleston) - Physics Department, Occidental College Go back to ... Eindhoven, Technische Universiteit - Department of Applied Physics, Elementary Processes ...

  9. Energy Department Announces Student Teams for Solar Decathlon...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Technology (New Jersey) University of Florida, National University of Singapore, and Santa Fe College (Florida) The University of Texas at Austin and Technische Universitaet ...

  10. Fabrication of two-dimensional Au at FePt core-shell nanoparticle...

    Office of Scientific and Technical Information (OSTI)

    Luyang ; Plettl, Alfred ; Ziemann, Paul 2 ; Bigall, Nadja C. 3 ; Eychmueller, Alexander 4 + Show Author Affiliations Institut fuer Angewandte Photophysik, Technische ...

  11. Absolute radiant power measurement for the Au M lines of laser...

    Office of Scientific and Technical Information (OSTI)

    (Germany) Physikalisch-Technische Bundesanstalt (PTB), Abbestr. 2-12, 10587 Berlin (Germany) Publication Date: 2014-01-15 OSTI Identifier: 22251206 Resource Type: Journal...

  12. NEXUSHAUS

    Broader source: Energy.gov [DOE]

    Decathletes from the University of Texas at Austin and Technische Universitaet Muenchen in Germany have drawn on shared interests to create NexusHaus, an ultra-efficient solar house that aims to reduce water and energy demand even as housing density increases.

  13. News Item

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    0, 2015 Time: 11:00 am Speaker: Karsten Reuter, Technische Universität München Title: First-Principles Embedding Approaches for Energy Science Location: 67-3111 Chemla Room Abstract: Detailed insight into surface molecular processes is the key driver for advances in application areas as diverse as heterogeneous catalysis, molecular electronics or drug delivery. While predictive-quality computational modeling assumes an increasing role in providing this insight, current methodology still

  14. Staff Directory

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Staff Directory Principal Investigator hubert-125 Hubert Ley, TRACC Director Phone: 630-252-8224; Fax: 630-252-5394; E-mail: This email address is being protected from spambots. You need JavaScript enabled to view it. Ph.D. and Masters, Nuclear Engineering, Rheinisch-Westfaelische Technische Hochschule, Aachen, Germany More than 20 years' experience in simulation, modeling, high-performance computing, and visualization Served on Argonne's International Nuclear Safety team, participating in

  15. Convective Turbulence in Liquid Gallium and Sodium | Argonne Leadership

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Computing Facility The field displays the complex dynamics of the velocity field The figure displays streamlines of the two-dimensional skin friction field which was obtained right at the heated bottom plate of a cylindrical cell for turbulent Rayleigh-Bénard convection in liquid mercury at a Rayleigh number of a hundred million. The field displays the complex dynamics of the velocity field. Joerg Schumacher, Technische Universitaet Ilmenau Convective Turbulence in Liquid Gallium and Sodium

  16. A new facility for the synchrotron radiation-based calibration of transfer radiation sources in the ultraviolet and vacuum ultraviolet spectral range

    SciTech Connect (OSTI)

    Thornagel, Reiner; Fliegauf, Rolf; Klein, Roman Kroth, Simone; Paustian, Wolfgang; Richter, Mathias

    2015-01-15

    The Physikalisch-Technische Bundesanstalt (PTB) has a long tradition in the calibration of radiation sources in the ultraviolet and vacuum ultraviolet spectral range, with traceability to calculable synchrotron radiation. Within this context, new instrumentation in the PTB laboratory at the Metrology Light Source (MLS) has been put into operation that opens up extended and improved calibration possibilities. A new facility for radiation source calibrations has been set up in the spectral range from 7 nm to 400 nm based on a combined normal incidence-grazing incidence monochromator. The facility can be used for the calibration of transfer sources in terms of spectral radiant intensity or mean spectral radiance, with traceability to the MLS primary source standard. We describe the design and performance of the experimental station and give examples of some commissioning results.

  17. Radiometric characterization of a high temperature blackbody in the visible and near infrared

    SciTech Connect (OSTI)

    Taubert, R. D.; Hollandt, J.

    2013-09-11

    At the Physikalisch-Technische Bundesanstalt the radiance temperature in the range from 962 C to 3000 C is disseminated by applying a high temperature blackbody (HTBB) with a directly heated pyrolytic graphite cavity. The thermodynamic radiance temperature of the HTBB was measured in the temperature range from 1000 C to 3000 C by applying almost simultaneously absolutely calibrated silicon photodiode based filter radiometers with centre wavelengths at 476 nm, 676 nm, 800 nm, 900 nm and 1000 nm and InGaAs photodiode based filter radiometers with centre wavelengths at 1300 nm, 1550 nm and 1595 nm. The results demonstrate that, expressed in terms of irradiance, within an uncertainty of 0.1 % (k=1) in a broad wavelength range the thermodynamic radiance temperature of the HTBB is wavelength independent in the investigated temperature interval.

  18. Fuel Thermo-physical Characterization Project: Evaluation of Models to Calculate Thermal Diffusivity of Layered Composites

    SciTech Connect (OSTI)

    Burkes, Douglas; Casella, Amanda J.; Gardner, Levi D.; Casella, Andrew M.; Huber, Tanja K.; Breitkreutz, Harald

    2015-02-11

    The Office of Material Management and Minimization Fuel Thermo-physical Characterization Project at Pacific Northwest National Laboratory (PNNL) is tasked with using PNNL facilities and processes to receive irradiated low enriched uranium-molybdenum fuel plate samples and perform analyses in support of the Office of Material Management and Minimization Reactor Conversion Program. This work is in support of the Fuel Development Pillar that is managed by Idaho National Laboratory. A key portion of the scope associated with this project was to measure the thermal properties of fuel segments harvested from plates that were irradiated in the Advanced Test Reactor. Thermal diffusivity of samples prepared from the fuel segments was measured using laser flash analysis. Two models, one developed by PNNL and the other developed by the Technische Universität München (TUM), were evaluated to extract the thermal diffusivity of the uranium-molybdenum alloy from measurements made on the irradiated, layered composites. The experimental data of the “TC” irradiated fuel segment was evaluated using both models considering a three-layer and five-layer system. Both models are in acceptable agreement with one another and indicate that the zirconium diffusion barrier has a minimal impact on the overall thermal diffusivity of the monolithic U-Mo fuel.

  19. Absolute radiant power measurement for the Au M lines of laser-plasma using a calibrated broadband soft X-ray spectrometer with flat-spectral response

    SciTech Connect (OSTI)

    Troussel, Ph.; Villette, B.; Oudot, G.; Tassin, V.; Bridou, F.; Delmotte, F.; Krumrey, M.

    2014-01-15

    CEA implemented an absolutely calibrated broadband soft X-ray spectrometer called DMX on the Omega laser facility at the Laboratory for Laser Energetics (LLE) in 1999 to measure radiant power and spectral distribution of the radiation of the Au plasma. The DMX spectrometer is composed of 20 channels covering the spectral range from 50 eV to 20 keV. The channels for energies below 1.5 keV combine a mirror and a filter with a coaxial photo-emissive detector. For the channels above 5 keV the photoemissive detector is replaced by a conductive detector. The intermediate energy channels (1.5 keV < photon energy < 5 keV) use only a filter and a coaxial detector. A further improvement of DMX consists in flat-response X-ray channels for a precise absolute measurement of the photon flux in the photon energy range from 0.1 keV to 6 keV. Such channels are equipped with a filter, a Multilayer Mirror (MLM), and a coaxial detector. We present as an example the development of channel for the gold M emission lines in the photon energy range from 2 keV to 4 keV which has been successfully used on the OMEGA laser facility. The results of the radiant power measurements with the new MLM channel and with the usual channel composed of a thin titanium filter and a coaxial detector (without mirror) are compared. All elements of the channel have been calibrated in the laboratory of the Physikalisch-Technische Bundesanstalt, Germany's National Metrology Institute, at the synchrotron radiation facility BESSY II in Berlin using dedicated well established and validated methods.

  20. Quantitative comparison between PGNAA measurements and MCNP calculations in view of the characterization of radioactive wastes in Germany and France

    SciTech Connect (OSTI)

    Mauerhofer, E.; Havenith, A.; Kettler, J.; Carasco, C.; Payan, E.; Ma, J. L.; Perot, B.

    2013-04-19

    The Forschungszentrum Juelich GmbH (FZJ), together with the Aachen University Rheinisch-Westfaelische Technische Hochschule (RWTH) and the French Alternative Energies and Atomic Energy Commission (CEA Cadarache) are involved in a cooperation aiming at characterizing toxic and reactive elements in radioactive waste packages by means of Prompt Gamma Neutron Activation Analysis (PGNAA). The French and German waste management agencies have indeed defined acceptability limits concerning these elements in view of their projected geological repositories. A first measurement campaign was performed in the new Prompt Gamma Neutron Activation Analysis (PGNAA) facility called MEDINA, at FZJ, to assess the capture gamma-ray signatures of some elements of interest in large samples up to waste drums with a volume of 200 liter. MEDINA is the acronym for Multi Element Detection based on Instrumental Neutron Activation. This paper presents MCNP calculations of the MEDINA facility and quantitative comparison between measurement and simulation. Passive gamma-ray spectra acquired with a high purity germanium detector and calibration sources are used to qualify the numerical model of the crystal. Active PGNAA spectra of a sodium chloride sample measured with MEDINA then allow for qualifying the global numerical model of the measurement cell. Chlorine indeed constitutes a usual reference with reliable capture gamma-ray production data. The goal is to characterize the entire simulation protocol (geometrical model, nuclear data, and postprocessing tools) which will be used for current measurement interpretation, extrapolation of the performances to other types of waste packages or other applications, as well as for the study of future PGNAA facilities.

  1. The spectral irradiance traceability chain at PTB

    SciTech Connect (OSTI)

    Sperfeld, P.; Pape, S.; Nevas, S.

    2013-05-10

    Spectral irradiance is a fundamental radiometric unit. Its application to measurement results requires qualified traceability to basic units of the international system of units (Systeme international d'unites, SI). The Physikalisch-Technische Bundesanstalt (PTB) is amongst other national metrological institutes (NMIs) responsible for the realization, maintenance and dissemination of various radiometric and photometric units based on and traceable to national standards. The unit of spectral irradiance is realized and represented by a blackbody-radiator as the national primary standard of the PTB. Based on Planck's radiation law, the irradiance is calculated and realized for any wavelength taking into account the exact knowledge of the radiation temperature and the geometrical parameters. Using a double-monochromator-based spectroradiometer system, secondary standard lamps can be calibrated by direct comparison to the blackbody-radiator (substitution method). These secondary standard lamps are then used at the PTB to calibrate standard lamps of customers. The customers themselves use these so-called transfer standards to calibrate their working standard lamps. These working standards are then used to calibrate own spectroradiometers or sources. This rather complex calibration chain is a common procedural method that for the customers generally leads to satisfying measurement results on site. Nevertheless, the standard lamps in use have to fulfill highest requirements concerning stability and reproducibility. Only this allows achieving comparably low transfer measurement uncertainties, which occur at each calibration step. Thus, the PTB is constantly investigating the improvement and further development of transfer standards and measurement methods for various spectral regions. The realization and dissemination of the spectral irradiance using the blackbody-radiator at the PTB is accomplished with worldwide approved minimized measurement uncertainties confirmed by international intercomparisons among NMIs. Ultimately, the spectral irradiance can be realized with expanded measurement uncertainties of far less than 1 % over a wide spectral range. Thus, for customers with high demands on low measurement uncertainties, it is possible to calibrate their working standards directly against the blackbody-radiator, taking into account the higher necessary effort. In special cases it is possible to calibrate the customer's spectroradiometric facilities directly in front of the blackbody-radiator. In the context of the European Metrology Research Project Traceability for surface spectral solar ultraviolet radiation, the traceability chain will be improved and adapted.