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  - 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  - 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  - 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  - 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  - 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  - 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  - Schwager, Christian
A1  - Flesch, Robert
A1  - Schwarzbözl, Peter
A1  - Herrmann, Ulf
A1  - Teixeira Boura, Cristiano José
T1  - Advanced two phase flow model for transient molten salt receiver system simulation
JF  - Solar Energy
N2  - In order to realistically predict and optimize the actual performance of a concentrating solar power (CSP) plant sophisticated simulation models and methods are required. This paper presents a detailed dynamic simulation model for a Molten Salt Solar Tower (MST) system, which is capable of simulating transient operation including detailed startup and shutdown procedures including drainage and refill. For appropriate representation of the transient behavior of the receiver as well as replication of local bulk and surface temperatures a discretized receiver model based on a novel homogeneous two-phase (2P) flow modelling approach is implemented in Modelica Dymola®. This allows for reasonable representation of the very different hydraulic and thermal properties of molten salt versus air as well as the transition between both. This dynamic 2P receiver model is embedded in a comprehensive one-dimensional model of a commercial scale MST system and coupled with a transient receiver flux density distribution from raytracing based heliostat field simulation. This enables for detailed process prediction with reasonable computational effort, while providing data such as local salt film and wall temperatures, realistic control behavior as well as net performance of the overall system. Besides a model description, this paper presents some results of a validation as well as the simulation of a complete startup procedure. Finally, a study on numerical simulation performance and grid dependencies is presented and discussed.
KW  - Molten salt solar tower
KW  - Molten salt receiver system
KW  - Dynamic simulation
KW  - Two-phase modelling
KW  - Transient flux distribution
Y1  - 2022
U6  - http://dx.doi.org/10.1016/j.solener.2021.12.065
SN  - 0038-092X (print)
SN  - 1471-1257 (online)
VL  - 232
SP  - 362
EP  - 375
PB  - Elsevier
CY  - Amsterdam
ER  -