TY  - CHAP
A1  - Mahdi, Zahra
A1  - Dersch, Jürgen
A1  - Schmitz, Pascal
A1  - Dieckmann, Simon
A1  - Caminos, Ricardo Alexander Chico
A1  - Teixeira Boura, Cristiano José
A1  - Herrmann, Ulf
A1  - Schwager, Christian
A1  - Schmitz, Mark
A1  - Gielen, Hans
A1  - Gedle, Yibekal
A1  - Büscher, Rauno
T1  - Technical assessment of Brayton cycle heat pumps for the integration in hybrid PV-CSP power plants
T2  - SOLARPACES 2020
N2  - The hybridization of Concentrated Solar Power (CSP) and Photovoltaics (PV) systems is a promising approach to reduce costs of solar power plants, while increasing dispatchability and flexibility of power generation. High temperature heat pumps (HT HP) can be utilized to boost the salt temperature in the thermal energy storage (TES) of a Parabolic Trough Collector (PTC) system from 385 °C up to 565 °C. A PV field can supply the power for the HT HP, thus effectively storing the PV power as thermal energy. Besides cost-efficiently storing energy from the PV field, the power block efficiency of the overall system is improved due to the higher steam parameters. This paper presents a technical assessment of Brayton cycle heat pumps to be integrated in hybrid PV-CSP power plants. As a first step, a theoretical analysis was carried out to find the most suitable working fluid. The analysis included the fluids Air, Argon (Ar), Nitrogen (N2) and Carbon dioxide (CO2). N2 has been chosen as the optimal working fluid for the system. After the selection of the ideal working medium, different concepts for the arrangement of a HT HP in a PV-CSP hybrid power plant were developed and simulated in EBSILON®Professional. The concepts were evaluated technically by comparing the number of components required, pressure losses and coefficient of performance (COP).
KW  - Solar thermal technologies
KW  - Hybrid energy system
KW  - Concentrated solar power
KW  - Power plants
KW  - Energy storage
Y1  - 2022
SN  - 978-0-7354-4195-8
U6  - https://doi.org/10.1063/5.0086269
SN  - 1551-7616 (online)
SN  - 0094-243X (print)
N1  - SOLARPACES 2020: 26th International Conference on Concentrating Solar Power and Chemical Energy Systems, 28 September–2 October 2020, Freiburg, Germany
IS  - 2445 / 1
PB  - AIP conference proceedings / American Institute of Physics
CY  - Melville, NY
ER  - 
TY  - CHAP
A1  - Sattler, Johannes Christoph
A1  - Chico Caminos, Ricardo Alexander
A1  - Atti, Vikrama Nagababu
A1  - Ürlings, Nicolas
A1  - Dutta, Siddharth
A1  - Ruiz, Victor
A1  - Kalogirou, Soteris
A1  - Ktistis, Panayiotis
A1  - Agathokleous, Rafaela
A1  - Alexopoulos, Spiros
A1  - Teixeira Boura, Cristiano José
A1  - Herrmann, Ulf
T1  - Dynamic simulation tool for a performance evaluation and sensitivity study of a parabolic trough collector system with concrete thermal energy storage
T2  - AIP Conference Proceedings 2303
Y1  - 2020
U6  - https://doi.org/10.1063/5.0029277
SN  - 0094-243X
N1  - SOLARPACES 2019: International Conference on Concentrating Solar Power and Chemical Energy Systems, 1–4 October 2019, Daegu, South Korea
SP  - 160004
PB  - 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
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  -