Publications Repository - Helmholtz-Zentrum Dresden-Rossendorf
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42225 Publications
Tiefenlagenabhängigkeit von Struktur und Gefüge sowie der mechanischen Eigenschaften bei Reaktordruckbehälterstählen
Große, M.; Böhmert, J.; Viehrig, H.-W.
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Poster
Tagung "Gefüge und Bruch", Bochum, 17.-19.3.1993
Permalink: https://www.hzdr.de/publications/Publ-17
Institute of Ion Beam Physics and Materials Research; Annual Report 1992
Matz, W.; Prokert, F.
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Forschungszentrum Rossendorf; FZR 93-06
ISSN: 1436-3976
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Permalink: https://www.hzdr.de/publications/Publ-16
Radonexhalation aus Bergbauhinterlassenschaften im Döhlener Becken
Baraniak, L.; Mende, A.
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Poster
XLIV. Berg- u. Hüttenmännischen Tag, Freiberg, Juni 1993
Permalink: https://www.hzdr.de/publications/Publ-14
Nutzung einer zukünftigen Synchrotronstrahlungsquelle, Arbeitstreffen am 15. und 16. Dezember 1992 in Dresden, Sammlung der Beiträge
Matz, W.
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Forschungszentrum Rossendorf; FZR 93-03
ISSN: 1436-3976
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Permalink: https://www.hzdr.de/publications/Publ-13
Betriebsergebnisse und Untersuchungen zur Stillegung der Anlage zur Molybdän-99-produktion Rossendorf -AMOR-I-
Bernhard, G.
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Forschungszentrum Rossendorf; FZR 93-04
ISSN: 1436-3976
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Permalink: https://www.hzdr.de/publications/Publ-12
The Code DYN3D/M2 for the Calculation of Reactivity Initiated Transients in Light Water Reactors with Hexagonal Fuel Elements -Code Manual and Input Data Description-
Grundmann, U.; Rohde, U.
Abstract
The code DYN3D/M2 is used for investigations of reactivity transients in cores of thermal power reactors with hexagonal fuel elements. The 3-dimensional neutron kinetics model HEXDYN3D of the code is based on a nodal expansion method for solving the two-group neutron diffusion equation. The thermo-hydraulic part FLOCAL consists of a two-phase flow model describing coolant behaviour and a fuel rod model. The fuel elements are simulated by separate coolant channels. Additional, some hot channels with power peaking factors belonging to chosen fuel elements can be considered. Several safety parameters as temperatures, DNBR and fuel enthalpy are evaluated. Macroscopic cross sections depending from the thermo-hydraulic parameters and boron concentration are input data of the code. The stationary state and transient behaviour can be analyzed. The arrangement of input data are descibed for using the different option of the code.
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Forschungszentrum Rossendorf; FZR 93-02 Reprint of Report FSS-2/92, February 1992
ISSN: 1436-3976
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Permalink: https://www.hzdr.de/publications/Publ-11
DYN3D/M2 - a Code for Calculation of Reactivity Transients in Cores with Hexagonal Geometry
Grundmann, U.; Rohde, U.
Abstract
The code DYN3D/M2 consists of a the 3-dimensional neutron kinetic model of the code HEXDYN3D and the thermohydraulic model of the code FLOCAL. The neutron kinetics of DYN3D/M2 is calculated by using a nodal expansion method (NEM) for hexagonal geometry. The developed method solves the neutron diffusion equation for two energy groups. Stationary state and transient behaviour can be calculated. By help of the code PREPAR-EC parameterizid neutron physical constants of given burnup distribution can be transferred from the MAGRU library to an input file of DYN3D/M2. The code FLOCAL consisting of a two-phase coolant flow model, a fuel rod model and a heat transfer regime map up to superheated steam is coupled with neutron kinetics by the neutron physical constants. One coolant channel per fuel assembly and additional hot channels are considered. The activities for code validation and the range of application are described.
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Forschungszentrum Rossendorf; FZR 93-01 Reprint of Report ZfK-690, November 1989
ISSN: 1436-3976
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Permalink: https://www.hzdr.de/publications/Publ-10
Projektvorbereitung und -abwicklung des Bund-Länder-1000-Dächer-Photovoltaik-Programms
Rindelhardt, U.; Teichmann, G.
Abstract
The report summarizes the present state of the 1000-Roof-Photovoltaic-Programme (sponsered by the BMFT and the Federal States) in the five new German Federal states. After some starting problems the programme is well accepted also in East Germany now, especially in Brandenburg, Saxony and Thuringia. Statistical data are given on the siutation in the single states.
Some operation results are discussed in more detail. A final yield of 2 kWh/kWp.a seems to be possible, at least in the region of Saxony. The share of the direct used solar energy by the plant owner strongly depends on the individual energy consumption and on the season. During the winter only a share of 10 % is realistic, but in summer the value can reach 50 % or more. The average performance ratio of several systems is estimated to 68 %.
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Lecture (Conference)
BMFT-Statusbericht Photovoltaik / BMFT-Statusseminar 27.-29.4.1993 in Bad Breisig, Tagungsband S.66 -
Contribution to proceedings
BMFT-Statusbericht Photovoltaik / BMFT-Statusseminar 27.-29.4.1993 in Bad Breisig, Tagungsband S.66
Permalink: https://www.hzdr.de/publications/Publ-9
The solid electrolyte technique as a precise method for the investigation of reduction - oxidation - reactions
Nebelung, C.
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Poster
12th International Symposium on Microchemical Techniques 06.09.1992, Cordoba, Spain
Permalink: https://www.hzdr.de/publications/Publ-8
1000-Dächer-Programm in Sachsen und Thüringen: Programmablauf, Anlagentechnik und Ergebnisse
Eckert, W.; Knopf, U.; Rindelhardt, U.; Teichmann, G.
Abstract
The paper dealt with the first results of the 1000-Roof-Photovoltaic Programme in the German Federal States of Saxony and Thuringia. Experiences in designing and mounting the pv-plants are discussed. Up to the end of 1992 totally 70 small pv-plants were coupled to the grid in both states. From the first results a mean energy production of about 700 kWh per installed power of 1 kWp can be extrapolated. The most technical difficulties resulted from the used DC-AC-inverters. Additional problems were caused by the grid itself, which was still integrated in the East European Network.
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Lecture (Conference)
8. Nationales Symposium "Photovoltaische Solarenergie", Staffelstein, 17.-19. März 1993, Tagungsband S. 125 -
Contribution to proceedings
8. Nationales Symposium "Photovoltaische Solarenergie", Staffelstein, 17.-19. März 1993, Tagungsband S. 125
Permalink: https://www.hzdr.de/publications/Publ-7
Technetium Complexes with Thioether Ligands - III. Synthesis and Structural Characterization of Cationic Nitridotechnetium(V) Complexes with Thiacrown ethers
Pietzsch, H.-J.; Spies, H.; Leibnitz, P.; Reck, G.
- Polyhedron 12 (1993) 24 pp. 2995-3002
Permalink: https://www.hzdr.de/publications/Publ-6
Warmwasserbereitung mit thermischen Solaranlagen - Eine Einführung in Technik und Kosten
Maletti, R.
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Contribution to external collection
Sächsisches Staatsministerium für Wirtschaft und Arbeit, Dezember 1993, Januar 1996
Permalink: https://www.hzdr.de/publications/Publ-5
Netzgekoppelte Photovoltaikanlagen: Stand und aktuelle Ergebnisse
Rindelhardt, U.
Abstract
Der derzeitige Entwicklungsstand bei netzgekoppelten Photovoltaikanlagen wird dargestellt. Basierend auf einer Darstellung der eingesetzten Anlagentechnik und ihrer Besonderheiten werden aktuelle Betriebsergebnisse von kleinen (1 bis 5 kWp) Anlagen diskutiert. Die Ergebnisse wurden vorwiegend an Anlagen gewonnen, die im Rahmen des 100-Dächer-Programms in Sachsen errichtet wurden. Abschließend wird auf künftige Entwicklungen eingegangen.
- Energieanwendung und Energietechnik Heft 6, 1993, S. 300
Permalink: https://www.hzdr.de/publications/Publ-4
Narrow Emission from a Lithium Liquid Metal lon Source
Hesse, E.; Naehring, F.
Abstract
At a lithium metal ion source two concentric emission bundles with sharp outlines are observed, which may indicate two different kinds of emitted ions and/or emission mechanisms. The angular intensity of the narrow bundle is the highest yet reported for liquid metal ion source.
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Journal of Physics D: Applied Physics / Rapid Communication 26 (1993) 717
DOI: 10.1088/0022-3727/26/4/030
Cited 4 times in Scopus
Permalink: https://www.hzdr.de/publications/Publ-2
Selforganization in the nuclear system: I. The slaving principle
Iskra, W.; Müller, M.; Rotter, I.
- Journal of Physics G 19 (1993), 2045-2062
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Forschungszentrum Rossendorf; FZR 93-01 Preprint 1993
ISSN: 1436-3976
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Permalink: https://www.hzdr.de/publications/Publ-1
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