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  - 
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  - Neumann, Hannah
A1  - Adam, Mario
A1  - Backes, Klaus
A1  - Börner, Martin
A1  - Clees, Tanja
A1  - Doetsch, Christian
A1  - Glaeser, Susanne
A1  - Herrmann, Ulf
A1  - May, Johanna
A1  - Rosenthal, Florian
A1  - Sauer, Dirk Uwe
A1  - Stadler, Ingo
T1  - Development of open educational resources for renewable energy and the energy transition process
T2  - ISES SWC 2021
N2  - The dissemination of knowledge about renewable energies is understood as a social task with the highest topicality. The transfer of teaching content on renewable energies into digital open educational resources offers the opportunity to significantly accelerate the implementation of the energy transition. Thus, in the here presented project six German universities create open educational resources for the energy transition. These materials are available to the public on the internet under a free license. So far there has been no publicly accessible, editable media that cover entire learning units about renewable energies extensively and in high technical quality. Thus, in this project, the content that remains up-to-date for a longer period is appropriately prepared in terms of media didactics. The materials enable lecturers to provide students with in-depth training about technologies for the energy transition. In a particular way, the created material is also suitable for making the general public knowledgeable about the energy transition with scientifically based material.
KW  - energy transition
KW  - renewable energies
KW  - open educational resources
KW  - dissemination
KW  - digitalization
Y1  - 2021
U6  - http://dx.doi.org/10.18086/swc.2021.47.03
N1  - ISES Solar World Congress, virtual conference 25-29 October 2021
PB  - International Solar Energy Society
CY  - Freiburg
ER  - 
TY  - CHAP
A1  - Schulte, Jonas
A1  - Schwager, Christian
A1  - Noureldin, Kareem
A1  - May, Martin
A1  - Teixeira Boura, Cristiano José
A1  - Herrmann, Ulf
T1  - Gradient controlled startup procedure of a molten-salt power-to-heat energy storage plant based on dynamic process simulation
T2  - SolarPACES: Solar Power & Chemical Energy Systems
N2  - The integration of high temperature thermal energy storages into existing conventional power plants can help to reduce the CO2 emissions of those plants and lead to lower capital expenditures for building energy storage systems, due to the use of synergy effects [1]. One possibility to implement that, is a molten salt storage system with a powerful power-to-heat unit. This paper presents two possible control concepts for the startup of the charging system of such a facility. The procedures are implemented in a detailed dynamic process model. The performance and safety regarding the film temperatures at heat transmitting surfaces are investigated in the process simulations. To improve the accuracy in predicting the film temperatures, CFD simulations of the electrical heater are carried out and the results are merged with the dynamic model. The results show that both investigated control concepts are safe regarding the temperature limits. The gradient controlled startup performed better than the temperature-controlled startup. Nevertheless, there are several uncertainties that need to be investigated further.
KW  - Power plants
KW  - Energy storage
KW  - Associated liquids
Y1  - 2023
SN  - 978-0-7354-4623-6
U6  - http://dx.doi.org/10.1063/5.0148741
SN  - 1551-7616 (online)
SN  - 0094-243X (print)
N1  - 27th International Conference on Concentrating Solar Power and Chemical Energy Systems
27 September–1 October 2021
Online
IS  - 2815 / 1
PB  - AIP conference proceedings / American Institute of Physics
CY  - Melville, NY
ER  - 
TY  - JOUR
A1  - Meyer, S.
A1  - Hänel, Matthias
A1  - Beeh, B.
A1  - Dittmann-Gabriel, Sören
A1  - Dluhosch, R.
A1  - May, Martin
A1  - Herrmann, Ulf
A1  - [und 5 weitere], 
T1  - Multifunktionaler thermischer Stromspeicher für die Strom- und Wärmeversorgung der Industrie von morgen
JF  - ETG Journal / Energietechnische Gesellschaft im VDE (ETG)
Y1  - 2020
SN  - 2625-9907
VL  - 2020
IS  - 1
SP  - 6
EP  - 9
ER  - 
TY  - JOUR
A1  - Herrmann, Ulf
A1  - Schwarzenbart, Marc
A1  - Dittmann-Gabriel, Sören
A1  - May, Martin
T1  - Hochtemperatur-Wärmespeicher für die Strom- und Wärmewende
JF  - Solarzeitalter : Politik, Kultur und Ökonomie erneuerbarer Energien
Y1  - 2019
SN  - 0937-3802
VL  - 31
IS  - 2
SP  - 18
EP  - 23
ER  -