| Title |
Increasing the solar share in combined cycles through thermochemical energy storage |
| Authors |
ORTIZ DOMÍNGUEZ, CARLOS, Chacartegui R. , Valverde J.M. , Carro A. , Tejada C. , Valverde J. |
| External publication |
No |
| Means |
Energy Convers. Manage. |
| Scope |
Article |
| Nature |
Científica |
| JCR Quartile |
1 |
| SJR Quartile |
1 |
| JCR Impact |
11.53300 |
| SJR Impact |
2.82900 |
| Web |
https://www.scopus.com/inward/record.uri?eid=2-s2.0-85098603037&doi=10.1016%2fj.enconman.2020.113730&partnerID=40&md5=e529ee8be4c77d50eb3afd0a0f9b5fa0 |
| Publication date |
01/01/2021 |
| ISI |
000614049500001 |
| Scopus Id |
2-s2.0-85098603037 |
| DOI |
10.1016/j.enconman.2020.113730 |
| Abstract |
The integration of Concentrating Solar Power (CSP) in combined cycles is a subjects of increasing attention. Combined cycles require high temperature at the gas turbine inlet (typically over 1000 °C), which hinders plant operation in the absence of direct solar radiation using currently commercial storage technologies based on molten salts (with a temperature limit around 600 °C). Thus, solar power share in current Integrated Solar Combined Cycles (ISCC) is typically lower than 20%, while most of the thermal power required is provided by natural gas. The present manuscript proposes the integration in combined cycles of a Thermochemical Energy Storage (TCES) system based on the Calcium-Looping process, which can release the stored energy at temperatures above 1000 °C. The storage charging step uses the heat provided by a CO2 stream previously heated in a high-temperature solar receiver. The configuration of the solar receiver-calciner is fundamental to determine the amount of storable energy. Results from the conceptual model simulation predict overall plant efficiencies above 45% (excluding solar side losses), suggesting a high potential for the development of this novel integration that would allow enhancing the solar share in combined cycles. © 2020 Elsevier Ltd |
| Keywords |
Energy storage; Integration; Natural gasoline plants; Solar equipment; Solar power plants; Solar radiation; Concentrating solar power; Direct solar radiation; High temperature; Integrated solar combin |
| Universidad Loyola members |
|
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