Techno-economic assessment of solid–gas thermochemical energy storage systems for solar thermal power applications
| Autor: | Yanping Sun, Alicia Bayon, Roman Bader, Sarah Miller, Mehdi Jafarian, Wojciech Lipiński, Jim Hinkley, Larissa Fedunik-Hofman |
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| Rok vydání: | 2018 |
| Předmět: |
Materials science
020209 energy Mechanical Engineering Thermal power station 02 engineering and technology Building and Construction Energy consumption 021001 nanoscience & nanotechnology Thermal energy storage Pollution Industrial and Manufacturing Engineering Energy storage General Energy Chemical engineering 0202 electrical engineering electronic engineering information engineering Capital cost Electrical and Electronic Engineering Molten salt 0210 nano-technology Cost of electricity by source Chemical looping combustion Civil and Structural Engineering |
| Zdroj: | Energy. 149:473-484 |
| ISSN: | 0360-5442 |
| DOI: | 10.1016/j.energy.2017.11.084 |
| Popis: | Thermochemical energy storage (TCES) systems are a promising alternative to conventional molten salt systems for integration with solar thermal power plants. TCES systems can offer high storage densities and high storage temperatures. Thus, they have the potential to increase the efficiency and reduce the levelized cost of electricity of solar thermal power plants. The present study investigates reacting systems with alkaline carbonates and hydroxides and metal oxides performing redox and chemical looping combustion reactions for their near-term deployment potential. 17 solid–gas TCES systems are identified from the initial set of 21 systems for techno-economic assessment. A quantitative assessment methodology based on techno-economic performance indicators (TPIs) is proposed for the comparative analysis. The techno-economic analysis indicates that energy consumption by auxiliary equipment and the cost of the feedstock are the most important factors affecting the system capital cost. Eight TCES systems are identified as competitive with molten salts in the near term, with an estimated capital cost lower than $25 MJ−1: hydroxide looping with Ca(OH)2/CaO, Sr(OH)2/SrO and Ba(OH)2/BaO; carbonate looping with CaCO3/CaO and SrCO3/SrO; redox with BaO2/BaO and chemical looping combustion with Fe3O4/FeO and NiO/Ni. |
| Databáze: | OpenAIRE |
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