Please use this identifier to cite or link to this item: http://hdl.handle.net/10995/102831
Title: Effect of two different heat transfer fluids on the performance of solar tower csp by comparing recompression supercritical co2 and rankine power cycles, china
Authors: Agyekum, E. B.
Adebayo, T. S.
Bekun, F. V.
Kumar, N. M.
Panjwani, M. K.
Issue Date: 2021
Publisher: MDPI AG
Citation: Effect of two different heat transfer fluids on the performance of solar tower csp by comparing recompression supercritical co2 and rankine power cycles, china / E. B. Agyekum, T. S. Adebayo, F. V. Bekun, et al. — DOI 10.3390/en14123426 // Energies. — 2021. — Vol. 14. — Iss. 12. — 3426.
Abstract: China intends to develop its renewable energy sector in order to cut down on its pollution levels. Concentrated solar power (CSP) technologies are expected to play a key role in this agenda. This study evaluated the technical and economic performance of a 100 MW solar tower CSP in Tibet, China, under different heat transfer fluids (HTF), i.e., Salt (60% NaNO3 40% KNO3 ) or HTF A, and Salt (46.5% LiF 11.5% NaF 42% KF) or HTF B under two different power cycles, namely supercritical CO2 and Rankine. Results from the study suggest that the Rankine power cycle with HTF A and B recorded capacity factors (CF) of 39% and 40.3%, respectively. The sCO2 power cycle also recorded CFs of 41% and 39.4% for HTF A and HTF B, respectively. A total of 359 GWh of energy was generated by the sCO2 system with HTF B, whereas the sCO2 system with HTF A generated a total of 345 GWh in the first year. The Rankine system with HTF A generated a total of 341 GWh, while the system with B as its HTF produced a total of 353 GWh of electricity in year one. Electricity to grid mainly occurred between 10:00 a.m. to 8:00 p.m. throughout the year. According to the results, the highest levelized cost of energy (LCOE) (real) of 0.1668 USD/kWh was recorded under the Rankine cycle with HTF A. The lowest LCOE (real) of 0.1586 USD/kWh was obtained under the sCO2 cycle with HTF B. In general, all scenarios were economically viable at the study area; however, the sCO2 proved to be more economically feasible according to the simulated results. © 2021 by the authors. Licensee MDPI, Basel, Switzerland.
Keywords: CHINA
CONCENTRATED SOLAR POWER
RANKINE POWER CYCLE
SUPERCRITICAL CARBON-DIOXIDE POWER CYCLE
TECHNO-ECONOMICS
CARBON DIOXIDE
ECONOMIC ANALYSIS
ENERGY POLICY
LITHIUM COMPOUNDS
POTASH
POTASSIUM NITRATE
RANKINE CYCLE
SODIUM NITRATE
CAPACITY FACTORS
CONCENTRATED SOLAR POWER
ECONOMIC PERFORMANCE
ECONOMICALLY VIABLE
POLLUTION LEVEL
RENEWABLE ENERGY SECTOR
SIMULATED RESULTS
SUPERCRITICAL CO2
HEAT TRANSFER PERFORMANCE
URI: http://hdl.handle.net/10995/102831
Access: info:eu-repo/semantics/openAccess
SCOPUS ID: 85108459479
PURE ID: 22104960
a0e8302b-d062-4b7b-a42a-4052aeb4b56e
ISSN: 19961073
DOI: 10.3390/en14123426
Appears in Collections:Научные публикации, проиндексированные в SCOPUS и WoS CC

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