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Your search keyword '"Weissbach, D."' showing total 24 results
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24 results on '"Weissbach, D."'

2. Energy intensitites, EROI (energy returned on invested), for electric energy sources

Author

Weissbach D., Herrmann F., Ruprecht G., Huke A., Czerski K., Gottlieb S., and Hussein A.

Subjects
Physics, QC1-999
Abstract

The EROI (Energy Returned On Invested) has been calculated for various systems, especially power plants, applying several different methodologies. This quantity is often used as an argument in discussions about economics to emphasize the performance of a certain technology. Contrary to that, the publications often answer different questions, e.g. analyses of emissions or material flows, rendering the EROI unphysical. The present work introduces a physical approach based on exergy flows for EROI calculation to pinpoint and compare the efficiency of different power plant technologies.

Published
2018
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10. Energy intensitites, EROI (energy returned on invested), for electric energy sources.

Author

Cifarelli, L., Wagner, F., Weissbach, D., Herrmann, F., Ruprecht, G., Huke, A., Czerski, K., Gottlieb, S., and Hussein, A.

Subjects
RENEWABLE energy sources, EXERGY, POWER plants, AUTOMATION, ELECTRICITY
Abstract

The EROI (Energy Returned On Invested) has been calculated for various systems, especially power plants, applying several different methodologies. This quantity is often used as an argument in discussions about economics to emphasize the performance of a certain technology. Contrary to that, the publications often answer different questions, e.g. analyses of emissions or material flows, rendering the EROI unphysical. The present work introduces a physical approach based on exergy flows for EROI calculation to pinpoint and compare the efficiency of different power plant technologies. [ABSTRACT FROM AUTHOR]

Published
2018
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13. THRESHOLD RESONANCE CONTRIBUTION TO THE THICK TARGET ²H(d, p)³H REACTION YIELD.

Author

KACZMARSKI, M., CZERSKI, K., WEISSBACH, D., and KILIC, A. I.

Subjects
NUCLEAR reactions, DEUTERONS, NUCLEAR energy, ELECTRONS, ZIRCONIUM
Abstract

Thick target yield of the ²H(d, p)3H reaction has been measured at very low energies under ultra-high vacuum conditions using deuteron-implanted Zr targets. Increase of enhancement factors observed for lowering deuteron energies could not be explained only by the electron screening effect. Assuming an additional contribution resulting from a single-particle threshold resonance, we are able to describe the energy dependence of the experimental reaction yield correctly. The theoretical calculations performed within the T-matrix approach allows also to study interference effects between different reaction amplitudes and predict a saturation of the threshold resonance strength at deuteron energies below 5 keV. [ABSTRACT FROM AUTHOR]

Published
2017
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15. Performance of Multilayer Monochromators for Hard X-Ray Imaging with Coherent Synchrotron Radiation

Author

Dietsch, R., primary, Rack, A., additional, Weitkamp, T., additional, Riotte, M., additional, Rack, T., additional, Holz, T., additional, Krämer, M., additional, Weissbach, D., additional, Morawe, Ch., additional, Siewert, F., additional, Meduňa, M., additional, Cloetens, P., additional, Ziegler, E., additional, McNulty, Ian, additional, Eyberger, Catherine, additional, and Lai, Barry, additional

Published
2011
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23. High precision deposition of single and multilayer x-ray optics and their application in x-ray analysis

Author

Dietsch, R., Holz, T., Krämer, M., and Weißbach, D.

Abstract

The field of single and multilayer based optics has seen significant improvements and new applications in recent years. In this paper, we give an overview of the numerous types of single and multilayer optics that have been developed. The fabrication possibilities of well-known regular periodic multilayers have been driven close to the theoretical limit, providing high resolution or high flux optics for a wide range of photon energies. In addition to that, multilayers with a lateral gradient have been developed to be adapted to curved substrates (for example for focusing purposes) or varying incidence angles on long, flat substrates. Depth-graded multilayers with arbitrarily selectable layer thicknesses over the entire layer stack have been simulated and manufactured, mainly as broadband mirrors with immense bandwidths. Finally, new applications of high precision deposition are reference sample for XRF (having several elements in low concentrations of few ng/mm2) and TXRF (with mass deposition in the range of 1011atoms/cm2) pay tribute to the low detection limits achievable in modern instruments for these techniques.

Published
2010
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