TY  - CHAP
A1  - Achenbach, Timm
A1  - Bosch, Timo
A1  - Breitbach, Gerd
A1  - Göttsche, Joachim
A1  - Sauerborn, Markus
T1  - Theoretical and experimental investigations regarding open volumetric receivers of CRS
T2  - Energy procedia : proceedings of the SolarPACES 2013 International Conference
Y1  - 2013
SN  - 1876-6102
VL  - Vol. 49
SP  - 1259
EP  - 1268
ER  - 
TY  - CHAP
A1  - Achenbach, Timm
A1  - Bosch, Timo
A1  - Breitbach, Gerd
A1  - Sauerborn, Markus
T1  - Simulation zur Absorption und Wärmeübertragung an Solarturmabsorbern
T2  - 77. Jahrestagung der DPG und DPG-Frühjahrstagung : 4.-8.3.2013
Y1  - 2013
SP  - 1
EP  - 14
ER  - 
TY  - JOUR
A1  - Alebouyeh Samami, Behzad
A1  - Pieper, Martin
A1  - Breitbach, Gerd
A1  - Hodapp, Josef
T1  - Heat production in the windings of the stators of electric machines under stationary condition
JF  - Heat and mass transfer
N2  - In electric machines due to high currents and resistive losses (joule heating) heat is produced. To avoid damages by overheating the design of effective cooling systems is required. Therefore the knowledge of heat sources and heat transfer processes is necessary. The purpose of this paper is to illustrate a good and effective calculation method for the temperature analysis based on homogenization techniques. These methods have been applied for the stator windings in a slot of an electric machine consisting of copper wires and resin. The key quantity here is an effective thermal conductivity, which characterizes the heterogeneous wire resin-arrangement inside the stator slot. To illustrate the applicability of the method, the analysis of a simplified, homogenized model is compared with the detailed analysis of temperature behavior inside a slot of an electric machine according to the heat generation. We considered here only the stationary situation. The achieved numerical results are accurate and show that the applied homogenization technique works in practice. Finally the results of simulations for the two cases, the original model of the slot and the homogenized model chosen for the slot (unit cell), are compared to experimental results.
Y1  - 2014
U6  - http://dx.doi.org/10.1007/s00231-014-1371-8
SN  - 0947-7411 (Print) ; 1432-1181 (E-Journal)
VL  - 50
SP  - 1707
EP  - 1716
PB  - Springer
CY  - Heidelberg
ER  - 
TY  - CHAP
A1  - Alexopoulos, Spiros
A1  - Breitbach, Gerd
A1  - Hoffschmidt, Bernhard
T1  - Optimization of the channel form geometry of porous ReSiC ceramic membrane modules
T2  - Proceedings / International Conference & Exhibition for Filtration and Separation Technology, FILTECH 2009 : October 13 - 15, 2009, Wiesbaden, Germany. Vol. 2
Y1  - 2009
SN  - 978-3-941655-36-2
SP  - 686
EP  - 693
PB  - Filtech Exhibitions Germany
CY  - Meerbusch
ER  - 
TY  - JOUR
A1  - Alexopoulos, Spiros
A1  - Breitbach, Gerd
A1  - Hoffschmidt, Bernhard
A1  - Stobbe, P.
T1  - Computational fluid flow of porous resic ceramic filtering modules and optimization of the channel edge form geometry
JF  - Proceedings : April 14 - 18, 2008, Leipzig, Germany / hosted by VDI, Society for Chemical and Process Engineering . Vol 2
Y1  - 2008
N1  - Verein Deutscher Ingenieure ; World Filtration Congress ; (10 : ; 2008.04.14-18 : ; Leipzig) ; WFC ; (10 : ; 2008.04.14-18 : ; Leipzig)
SP  - 300
EP  - 304
PB  - Filtech Exhibitions
CY  - Meerbusch
ER  - 
TY  - JOUR
A1  - Alexopoulos, Spiros
A1  - Breitbach, Gerd
A1  - Hoffschmidt, Bernhard
A1  - Stobbe, P.
T1  - Optimization of the geometry of porous SiC ceramic filtering modules using numerical methods
JF  - Developments in porous, biological and geopolymer ceramics : a collection of papers presented at the 31st International Conference on Advanced Ceramics and Composites, January 21 - 26, 2007, Daytona Beach, Florida ; [papers presented at the Symposium on Porous Ceramics: Novel Developments and Applications] / ed.: Manuel Brito ... Vol. ed.: Jonathan Salem ... The American Ceramics Society
Y1  - 2008
SN  - 9780470196403
N1  - Ceramic engineering and science proceedings ; 28,9
SP  - 95
EP  - 104
PB  - Wiley
CY  - Hoboken, NJ
ER  - 
TY  - CHAP
A1  - Alexopoulos, Spiros
A1  - Rau, Christoph
A1  - Hoffschmidt, Bernhard
A1  - Breitbach, Gerd
A1  - Latzke, Markus
T1  - Modelling and validation of a transient heat recovery steam generator of the solar tower power plant Juelich
T2  - Eurosun 2012 : Solar energy for a brighter future : conference proceedings : Rijeka, 18.-22.09.2012
Y1  - 2012
SP  - ID 97
CY  - Rijeka
ER  - 
TY  - CHAP
A1  - Beckmöller, S.
A1  - Wolters, J.
A1  - Breitbach, Gerd
A1  - Penkalla, H. J.
A1  - Schubert, F.
T1  - Microstructural dependent constitutive equation for inelastic analysis of internally cooled IN 738 LC turbine blades
T2  - Materials for advanced power engineering 1994 : proceedings of a conference held in Liege, Belgium, 3 - 6 Oct. 1994
Y1  - 1995
SN  - 0792330749
SP  - 829
EP  - 839
PB  - Kluwer
CY  - Dordrecht
ER  - 
TY  - BOOK
A1  - Breitbach, Gerd
T1  - Proceedings of the Workshop on Structural Design Criteria for HTR : Jülich, 31. January - 1. February 1989 / ed.: G. Breitbach ... - Als Ms. gedr.
Y1  - 1989
N1  - (Berichte der Kernforschungsanlage Jülich : Jül-Conf. ; 71) ; Workshop on Structural Design Criteria for HTR <1989, Jülich>
PB  - Zentralbibliothek d. Kernforschungsanlage
CY  - Jülich
ER  - 
TY  - JOUR
A1  - Breitbach, Gerd
T1  - Spannungs- und Kriechschädigungsanalyse für die Rohre eines HTR-beheizten Röhrenspaltofens
JF  - Kerntechnik '83 : Jahrestagung Kerntechnik , Berlin, 14.-16. Juni 1983. Tagungsbericht / Hrsg.: Kerntechnische Gesellschaft e.V. und Deutsches Atomforum e.V.
Y1  - 1983
SN  - 0173-0924
N1  - 2. ISSN: 0720-9207. - Kerntechnische Gesellschaft. - Jahrestagung Kerntechnik <1983, Berlin>
SP  - 659
EP  - 662
PB  - Deutsches Atomforum
CY  - Bonn
ER  -