TY  - JOUR
A1  - Kearney, D.
A1  - Herrmann, Ulf
A1  - Nava, P.
A1  - Kelly, B.
A1  - Mahoney, R.
A1  - Pacheco, J.
A1  - Cable, R.
A1  - Potrovitza, N.
A1  - Blake, D.
A1  - Price, H.
T1  - Assessment of a Molten Salt Heat Transfer Fluid in a Parabolic Trough Solar Field
JF  - Journal of Solar Energy Engineering
Y1  - 2003
U6  - http://dx.doi.org/10.1115/1.1565087
SN  - 1528-8986
VL  - 125
IS  - 2
SP  - 170
EP  - 176
ER  - 
TY  - JOUR
A1  - Damm, Marc André
A1  - Sauerborn, Markus
A1  - Fend, Thomas
A1  - Herrmann, Ulf
T1  - Optimisation of a urea selective catalytic reduction system with a coated ceramic mixing element
JF  - Journal of ceramic science and technology
Y1  - 2017
SN  - 2190-9385 (Print)
U6  - http://dx.doi.org/10.4416/JCST2016-00056
SN  - 2190-9385 (Online)
VL  - 8
IS  - 1
SP  - 19
EP  - 24
PB  - Göller
CY  - Baden-Baden
ER  - 
TY  - JOUR
A1  - Alexopoulos, Spiros
A1  - Hoffschmidt, Bernhard
T1  - Advances in solar tower technology
JF  - Wiley interdisciplinary reviews : Energy and Environment : WIREs
Y1  - 2017
U6  - http://dx.doi.org/10.1002/wene.217
SN  - 2041-840X
VL  - 6
IS  - 1
SP  - 1
EP  - 19
PB  - Wiley
CY  - Weinheim
ER  - 
TY  - JOUR
A1  - Herrmann, Ulf
A1  - Lippke, F.
T1  - The influence of transients on the design of DSG solar fields
JF  - Journal de Physique IV : proceedings
Y1  - 1999
SN  - 2-86883-402-7
U6  - http://dx.doi.org/10.1051/jp4:1999377
SN  - 1764-7177 (Online)
SN  - 1155-4339 (Print)
VL  - 9
IS  - PR3
SP  - 489
EP  - 494
ER  - 
TY  - JOUR
A1  - Dersch, Jürgen
A1  - Geyer, Michael
A1  - Herrmann, Ulf
A1  - Jones, Scott A.
A1  - Kelly, Bruce
A1  - Kistner, Rainer
A1  - Ortmanns, Winfried
A1  - Pitz-Paal, Robert
A1  - Price, Henry
T1  - Trough integration into power plants—a study on the performance and economy of integrated solar combined cycle systems
JF  - Energy : the international journal
Y1  - 2004
U6  - http://dx.doi.org/10.1016/S0360-5442(03)00199-3
SN  - 0360-5442
N1  - SolarPACES 2002, Zürich, Switzerland, 4–6 September 2002
VL  - 29
IS  - 5-6 (Special Issue SolarPaces)
SP  - 947
EP  - 959
ER  - 
TY  - JOUR
A1  - Kearney, David W.
A1  - Kelly, Bruce
A1  - Herrmann, Ulf
A1  - Cable, R.
A1  - Pacheco, J.
A1  - Mahoney, R.
A1  - Price, Henry
A1  - Blake, D.
A1  - Nava, P.
A1  - Potrovitza, N.
T1  - Engineering Aspects of a Molten Salt Heat Transfer Fluid in a Trough Solar Field
JF  - Energy : the international journal
Y1  - 2002
U6  - http://dx.doi.org/10.1016/S0360-5442(03)00191-9
SN  - 0360-5442
N1  - SolarPACES 2002, Zürich, Switzerland, 4–6 September 2002
VL  - 29
IS  - 5-6 (Special Issue SolarPaces)
SP  - 861
EP  - 870
ER  - 
TY  - JOUR
A1  - Herrmann, Ulf
A1  - Kelly, Bruce
A1  - Price, Henry
T1  - Two Tank Molten Salt Storage for Parabolic Trough Solar Power Plants
JF  - Energy : the international journal
Y1  - 2002
U6  - http://dx.doi.org/10.1016/S0360-5442(03)00193-2
SN  - 0360-5442
N1  - SolarPACES 2002, Zürich, Switzerland, 4–6 September 2002
VL  - 29
IS  - 5-6 (Special Issue SolarPaces)
SP  - 883
EP  - 893
ER  - 
TY  - JOUR
A1  - Herrmann, Ulf
A1  - Nava, P.
T1  - Die Strahlung der Sonne einfangen
JF  - DLR-Nachrichten / Deutsches Zentrum für Luft- und Raumfahrt
Y1  - 2005
SN  - 0937-0420
VL  - 109
IS  - Sonderheft Solarforschung
SP  - 34
EP  - 37
ER  - 
TY  - JOUR
A1  - Herrmann, Ulf
A1  - Kearney, David W.
T1  - Survey of Thermal Energy Storage for Parabolic Trough Power Plants
JF  - Journal of Solar Energy Engineering
Y1  - 2002
U6  - http://dx.doi.org/10.1115/1.1467601
SN  - 1528-8986 (Online)
SN  - 0199-6231 (Print)
VL  - 124
IS  - 2
SP  - 145
EP  - 152
ER  - 
TY  - JOUR
A1  - Alexopoulos, Spiros
T1  - Simulation model for the transient process behaviour of solar aluminium recycling in a rotary kiln
JF  - Applied Thermal Engineering
Y1  - 2015
U6  - http://dx.doi.org/10.1016/j.applthermaleng.2015.01.007
SN  - 1359-4311
N1  - Autor im Original: Spiridon O. Alexopoulos
VL  - 78
SP  - 387
EP  - 396
PB  - Elsevier
CY  - Amsterdam
ER  - 
TY  - JOUR
A1  - Kluczka, Sven
A1  - Eckstein, Julian
A1  - Alexopoulos, Spiros
A1  - Vaeßen, Christiane
A1  - Roeb, Martin
T1  - Process simulation for solar steam and dry reforming
JF  - Energy procedia : Proceedings of the SolarPACES 2013 International Conference
N2  - In co-operation with the German Aerospace Center, the Solar-Institut Jülich has been analyzing the different technologies that are available for methanol production from CO2 using solar energy. The aim of the project is to extract CO2 from industrial exhaust gases or directly from the atmosphere to recycle it by use of solar energy. Part of the study was the modeling and simulating of a methane reformer for the production of synthesis gas, which can be operated by solar or hybrid heat sources. The reformer has been simplified in such a way that the model is accurate and enables fast calculations. The developed pseudo-homogeneous one- dimensional model can be regarded as a kind of counter-current heat exchanger and is able to incorporate a steam reforming reaction as well as a dry reforming reaction.
Y1  - 2014
U6  - http://dx.doi.org/10.1016/j.egypro.2014.03.092
SN  - 1876-6102 (E-Journal)
VL  - 49
SP  - 850
EP  - 859
PB  - Elsevier
CY  - Amsterdam
ER  - 
TY  - JOUR
A1  - Vieira da Silva, Maria Eugenia
A1  - Schwarzer, Klemens
A1  - Hoffschmidt, Bernhard
A1  - Pinheiro Rodrigues, Frederico
A1  - Schwarzer, Tarik
A1  - Costa Rocha, Paulo Alexandre
T1  - Mass transfer correlation for evaporation–condensation thermal process in the range of 70 °C–95 °C
JF  - Renewable energy
Y1  - 2013
SN  - 1879-0682 (E-Journal); 0960-1481 (Print)
VL  - Vol. 53
SP  - 174
EP  - 179
PB  - Elsevier
CY  - Amsterdam
ER  - 
TY  - JOUR
A1  - Rau, Christoph
A1  - Alexopoulos, Spiros
A1  - Breitbach, Gerd
A1  - Hoffschmidt, Bernhard
A1  - Latzke, Markus
A1  - Sattler, Johannes, Christoph
T1  - Transient simulation of a solar-hybrid tower power plant with open volumetric receiver at the location Barstow
JF  - Energy procedia : proceedings of the SolarPACES 2013 International Conference
N2  - In this work the transient simulations of four hybrid solar tower power plant concepts with open-volumetric receiver technology for a location in Barstow-Daggett, USA, are presented. The open-volumetric receiver uses ambient air as heat transfer fluid and the hybridization is realized with a gas turbine. The Rankine cycle is heated by solar-heated air and/or by the gas turbine's flue gases. The plant can be operated in solar-only, hybrid parallel or combined cycle-only mode as well as in any intermediate load levels where the solar portion can vary between 0 to 100%.

The simulated plant is based on the configuration of a solar-hybrid power tower project, which is in planning for a site in Northern Algeria. The meteorological data for Barstow-Daggett was taken from the software meteonorm. The solar power tower simulation tool has been developed in the simulation environment MATLAB/Simulink and is validated.
Y1  - 2014
U6  - http://dx.doi.org/10.1016/j.egypro.2014.03.157
SN  - 1876-6102
VL  - 49
SP  - 1481
EP  - 1490
PB  - Elsevier
CY  - Amsterdam
ER  - 
TY  - JOUR
A1  - Kronhardt, Valentina
A1  - Alexopoulos, Spiros
A1  - Reißel, Martin
A1  - Sattler, Johannes, Christoph
A1  - Hoffschmidt, Bernhard
A1  - Hänel, Matthias
A1  - Doerbeck, Till
T1  - High-temperature thermal storage system for solar tower power plants with open-volumetric air receiver simulation and energy balancing of a discretized model
JF  - Energy procedia
N2  - This paper describes the modeling of a high-temperature storage system for an existing solar tower power plant with open volumetric receiver technology, which uses air as heat transfer medium (HTF). The storage system model has been developed in the simulation environment Matlab/Simulink®. The storage type under investigation is a packed bed thermal energy storage system which has the characteristics of a regenerator. Thermal energy can be stored and discharged as required via the HTF air. The air mass flow distribution is controlled by valves, and the mass flow by two blowers. The thermal storage operation strategy has a direct and significant impact on the energetic and economic efficiency of the solar tower power plants.
Y1  - 2014
U6  - http://dx.doi.org/10.1016/j.egypro.2014.03.094
SN  - 1876-6102 (E-Journal) ; 1876-6102 (Print)
VL  - 49
SP  - 870
EP  - 877
PB  - Elsevier
CY  - Amsterdam
ER  - 
TY  - JOUR
A1  - Reisgen, Uwe
A1  - Schleser, Markus
A1  - Abdurakhmanov, Aydemir
A1  - Turichin, Gleb
A1  - Valdaitseva, Elena
A1  - Bach, Friedrich-Wilhelm
A1  - Hassel, Thomas
A1  - Beniyashi, Alexander
T1  - Investigation of factors influencing the formation of weld defects in non-vacuum electron beam welding
JF  - The Paton welding journal
N2  - The influence of welding condition parameters and properties of material on formation of defects, such as humping and undercuts, in non-vacuum electron beam welding was investigated. The influence of separate welding parameters on the quality of welds was determined.
Y1  - 2012
SN  - 0957-798X
VL  - 2012
IS  - 2
SP  - 11
EP  - 18
PB  - Paton Publishing House
CY  - Kiev
ER  - 
TY  - JOUR
A1  - Agrafiotis, Christos C.
A1  - Mavroidis, Ilias
A1  - Konstandopoulos, Athansios G.
A1  - Hoffschmidt, Bernhard
A1  - Stobbe, Per
A1  - Romero, Manuel
A1  - Fernandez-Quero, Valerio
T1  - Evaluation of porous silicon carbide monolithic honeycombs as volumetric receivers/collectors of concentrated solar radiation
JF  - Solar energy materials and solar cells
Y1  - 2007
SN  - 1879-3398 (E-Journal); 0927-0248 (Print)
VL  - Vol. 91
IS  - Iss. 6
SP  - 474
EP  - 488
ER  - 
TY  - JOUR
A1  - Meliß, Michael
A1  - Windheim, R.
T1  - Energiequelle für morgen :  Möglichkeiten und Grenzen der Windenergienutzung - ein Statusbericht
JF  - VDI-Nachrichten. Bd. 31 (1977), H. 22
Y1  - 1977
SN  - 0042-1758
SP  - 37
EP  - 38
ER  - 
TY  - JOUR
A1  - Meliß, Michael
A1  - Bünde, R.
T1  - Unkonventionelle Energiequellen - Entwicklungsstudien (4)
JF  - Brennstoff, Wärme, Kraft : BWK
Y1  - 1978
SN  - 0006-9612 (Print) ; 1436-4883 (E-Journal)
VL  - 30
IS  - 3
SP  - 120
EP  - 126
PB  - Springer-VDI-Verlag
CY  - Düsseldorf
ER  - 
TY  - JOUR
A1  - Meliß, Michael
T1  - Regenerative Energiequellen
JF  - Brennstoff, Wärme, Kraft : BWK
Y1  - 1978
SN  - 0006-9612 (Print) ; 1436-4883 (E-Journal)
VL  - 30
IS  - 4
SP  - 151
EP  - 156
PB  - Springer-VDI-Verlag
CY  - Düsseldorf
ER  - 
TY  - JOUR
A1  - Meliß, Michael
T1  - Regenerative Energiequellen
JF  - Brennstoff, Wärme, Kraft : BWK ; das Energie-Fachmagazin. Bd. 31 (1979), H. 4
Y1  - 1979
SN  - 0006-9612 (Print) ; 1436-4883 (E-Journal)
SP  - 147
EP  - 154
ER  -