TY  - CHAP
A1  - Sattler, Johannes Christoph
A1  - Schneider, Iesse Peer
A1  - Angele, Florian
A1  - Atti, Vikrama
A1  - Teixeira Boura, Cristiano José
A1  - Herrmann, Ulf
T1  - Development of heliostat field calibration methods: Theory and experimental test results
T2  - SolarPACES conference proceedings
N2  - In this work, three patent pending calibration methods for heliostat fields of central receiver systems (CRS) developed by the Solar-Institut Jülich (SIJ) of the FH Aachen University of Applied Sciences are presented. The calibration methods can either operate in a combined mode or in stand-alone mode. The first calibration method, method A, foresees that a camera matrix is placed into the receiver plane where it is subjected to concentrated solar irradiance during a measurement process. The second calibration method, method B, uses an unmanned aerial vehicle (UAV) such as a quadrocopter to automatically fly into the reflected solar irradiance cross-section of one or more heliostats (two variants of method B were tested). The third calibration method, method C, foresees a stereo central camera or multiple stereo cameras installed e.g. on the solar tower whereby the orientations of the heliostats are calculated from the location detection of spherical red markers attached to the heliostats. The most accurate method is method A which has a mean accuracy of 0.17 mrad. The mean accuracy of method B variant 1 is 1.36 mrad and of variant 2 is 1.73 mrad. Method C has a mean accuracy of 15.07 mrad. For method B there is great potential regarding improving the measurement accuracy. For method C the collected data was not sufficient for determining whether or not there is potential for improving the accuracy.
KW  - Heliostat Field Calibration
KW  - Unmanned aerial vehicle
KW  - UAV
KW  - Quadrocopter
KW  - Camera system
Y1  - 2024
U6  - http://dx.doi.org/10.52825/solarpaces.v1i.678
SN  - 2751-9899 (online)
N1  - 28th International Conference on Concentrating Solar Power and Chemical Energy Systems, 27-30 September, Albuquerque, NM, USA
IS  - Vol. 1
PB  - TIB Open Publishing
CY  - Hannover
ER  - 
TY  - CHAP
A1  - Rendon, Carlos
A1  - Schwager, Christian
A1  - Ghiasi, Mona
A1  - Schmitz, Pascal
A1  - Bohang, Fakhri
A1  - Caminos, Ricardo Alexander Chico
A1  - Teixeira Boura, Cristiano José
A1  - Herrmann, Ulf
T1  - Modeling and upscaling of a pilot bayonettube reactor for indirect solar mixed methane reforming
T2  - AIP Conference Proceedings
Y1  - 2020
U6  - http://dx.doi.org/10.1063/5.0029974
IS  - 2303
SP  - 170012-1
EP  - 170012-9
ER  - 
TY  - CHAP
A1  - Sattler, Johannes, Christoph
A1  - Caminos, Ricardo Alexander Chico
A1  - Ürlings, Nicolas
A1  - Dutta, Siddharth
A1  - Ruiz, Victor
A1  - Kalogirou, Soteris
A1  - Ktistis, Panayiotis
A1  - Agathokleous, Rafaela
A1  - Jung, Christian
A1  - Alexopoulos, Spiros
A1  - Atti, Vikrama Nagababu
A1  - Teixeira Boura, Cristiano José
A1  - Herrmann, Ulf
T1  - Operational experience and behaviour of a parabolic trough collector system with concrete thermal energy storage for process steam generation in Cyprus
T2  - AIP Conference Proceedings
Y1  - 2020
U6  - http://dx.doi.org/10.1063/5.0029278
IS  - 2303
SP  - 140004-1
EP  - 140004-10
ER  - 
TY  - CHAP
A1  - Sattler, Johannes, Christoph
A1  - Alexopoulos, Spiros
A1  - Caminos, Ricardo Alexander Chico
A1  - Mitchell, John C.
A1  - Ruiz, Victor C.
A1  - Kalogirou, Soteris
A1  - Ktistis, Panayiotis K.
A1  - Teixeira Boura, Cristiano José
A1  - Herrmann, Ulf
T1  - Dynamic simulation model of a parabolic trough collector system with concrete thermal energy storage for process steam generation
T2  - AIP Conference Proceedings
Y1  - 2019
U6  - http://dx.doi.org/10.1063/1.5117663
SN  - 0094243X
VL  - 2126
SP  - 150007-1
EP  - 150007-8
ER  - 
TY  - CHAP
A1  - May, Martin
A1  - Breitbach, Gerd
A1  - Alexopoulos, Spiros
A1  - Latzke, Markus
A1  - Bäumer, Klaus
A1  - Uhlig, Ralf
A1  - Söhn, Matthias
A1  - Teixeira Boura, Cristiano José
A1  - Herrmann, Ulf
T1  - Experimental facility for investigations of wire mesh absorbers for pressurized gases
T2  - AIP Conference Proceedings
Y1  - 2019
U6  - http://dx.doi.org/10.1063/1.5117547
SN  - 0094243X
VL  - 2126
SP  - 030035-1
EP  - 030035-9
ER  - 
TY  - CHAP
A1  - Mahdi, Zahra
A1  - Rendón, Carlos
A1  - Schwager, Christian
A1  - Teixeira Boura, Cristiano José
A1  - Herrmann, Ulf
T1  - Novel concept for indirect solar-heated methane reforming
T2  - AIP Conference Proceedings
Y1  - 2019
U6  - http://dx.doi.org/10.1063/1.5117694
SN  - 0094-243X
VL  - 2126
SP  - 180014-1
EP  - 180014-7
PB  - AIP Publishing
CY  - Melville, NY
ER  - 
TY  - CHAP
A1  - Breitbach, Gerd
A1  - Alexopoulos, Spiros
A1  - May, Martin
A1  - Teixeira Boura, Cristiano José
A1  - Herrmann, Ulf
T1  - Analysis of volumetric solar radiation absorbers made of wire meshes
T2  - AIP Conference Proceedings
Y1  - 2019
U6  - http://dx.doi.org/10.1063/1.5117521
SN  - 0094243X
VL  - 2126
SP  - 030009-1
EP  - 030009-6
ER  -