Published at Energy – A cascaded thermochemical energy storage system enabling performance enhancement of concentrated solar power plants
Published at Energy - A cascaded thermochemical energy storage system enabling performance enhancement of ... SolarPACES
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A Cascaded Thermochemical Energy Storage System Enabling Performance Enhancement of Concentrated Solar Power Plants
Abstract:
Calcium looping (CaL) thermochemical energy storage (TCES) exhibits promising potential for application in concentrated solar power (CSP) plants. However, the CSP-CaL integrating system encounters challenges related to elevated heat loss and diminished power generation efficiency. Herein, for the sake of a more rational heat management and enhanced energy utilization, we propose a cascaded energy storage and utilization strategy. Accordingly, a cascaded TCES system model consisting of Calcium looping and Magnesium looping (MgL)-MgCO3/MgO thermochemical cycle subsystem is developed. The energy analysis and exergy analysis results show that the solar power efficiency and exergy efficiency of the considered system are 41.7% of 44.7%, which are 2.6% and 2.8% higher than the single CaL energy storage CSP system, respectively, demonstrating the superiority of the proposed strategy and system for CSP application. Furthermore, the operation strategy of the system under off-design conditions is proposed by considering the real solar irradiation, and the yearly overall solar power efficiency is 39.2%. The economic analysis of the proposed system indicates that the levelized cost of electricity ranges from 179–156 $/MWh for different plant sizes and is superior in large-scale CSP plants. The cascaded energy storage and utilization strategy of thermochemical cycles with different working temperatures provides better dispatchability to meet the different thermal energy demands.
Lu, Y., Xuan, Y., Teng, L., Liu, J., & Wang, B. (2024). A cascaded thermochemical energy storage system enabling performance enhancement of concentrated solar power plants. Energy, 288, 129749. https://doi.org/10.1016/j.energy.2023.129749
SDGs, Targets, and Indicators
| SDGs | Targets | Indicators |
|---|---|---|
| SDG 7: Affordable and Clean Energy | 7.2: Increase substantially the share of renewable energy in the global energy mix | – Solar power efficiency and exergy efficiency of the considered system – Yearly overall solar power efficiency |
| SDG 9: Industry, Innovation, and Infrastructure | 9.4: Upgrade infrastructure and retrofit industries to make them sustainable, with increased resource-use efficiency and greater adoption of clean and environmentally sound technologies and industrial processes | – Energy analysis and exergy analysis results of the considered system – Economic analysis of the proposed system (levelized cost of electricity) |
| SDG 13: Climate Action | 13.2: Integrate climate change measures into national policies, strategies, and planning | – Energy analysis and exergy analysis results of the considered system – Economic analysis of the proposed system (levelized cost of electricity) |
1. Which SDGs are addressed or connected to the issues highlighted in the article?
The SDGs that are addressed or connected to the issues highlighted in the article are SDG 7 (Affordable and Clean Energy), SDG 9 (Industry, Innovation, and Infrastructure), and SDG 13 (Climate Action).
2. What specific targets under those SDGs can be identified based on the article’s content?
Based on the article’s content, the specific targets that can be identified are:
– Under SDG 7: Target 7.2 – Increase substantially the share of renewable energy in the global energy mix.
– Under SDG 9: Target 9.4 – Upgrade infrastructure and retrofit industries to make them sustainable, with increased resource-use efficiency and greater adoption of clean and environmentally sound technologies and industrial processes.
– Under SDG 13: Target 13.2 – Integrate climate change measures into national policies, strategies, and planning.
3. Are there any indicators mentioned or implied in the article that can be used to measure progress towards the identified targets?
Yes, there are indicators mentioned or implied in the article that can be used to measure progress towards the identified targets. These indicators include:
– Solar power efficiency and exergy efficiency of the considered system: These indicators measure the efficiency of the energy storage and utilization strategy in achieving a higher share of renewable energy (SDG 7).
– Yearly overall solar power efficiency: This indicator measures the overall efficiency of the system in utilizing solar power (SDG 7).
– Energy analysis and exergy analysis results of the considered system: These indicators provide insights into the energy performance and resource-use efficiency of the system, contributing to sustainable infrastructure and clean technologies (SDG 9).
– Economic analysis of the proposed system (levelized cost of electricity): This indicator assesses the economic viability and affordability of the system, which is relevant to both SDG 9 and SDG 13.
By analyzing these indicators, progress can be measured towards achieving the targets under SDG 7, SDG 9, and SDG 13.
4. Table: SDGs, Targets, and Indicators
| SDGs | Targets | Indicators |
|---|---|---|
| SDG 7: Affordable and Clean Energy | 7.2: Increase substantially the share of renewable energy in the global energy mix | – Solar power efficiency and exergy efficiency of the considered system – Yearly overall solar power efficiency |
| SDG 9: Industry, Innovation, and Infrastructure | 9.4: Upgrade infrastructure and retrofit industries to make them sustainable, with increased resource-use efficiency and greater adoption of clean and environmentally sound technologies and industrial processes | – Energy analysis and exergy analysis results of the considered system – Economic analysis of the proposed system (levelized cost of electricity) |
| SDG 13: Climate Action | 13.2: Integrate climate change measures into national policies, strategies, and planning | – Energy analysis and exergy analysis results of the considered system – Economic analysis of the proposed system (levelized cost of electricity) |
Behold! This splendid article springs forth from the wellspring of knowledge, shaped by a wondrous proprietary AI technology that delved into a vast ocean of data, illuminating the path towards the Sustainable Development Goals. Remember that all rights are reserved by SDG Investors LLC, empowering us to champion progress together.
Source: solarpaces.org
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