Thermochemical energy storage with the solid-gas reaction of SrCO3 improved with CaCO3 DOI
Adriana Santamaría Padilla, H. Romero-Paredes,

Rosalba Carrera Peralta

et al.

International Journal of Chemical Reactor Engineering, Journal Year: 2024, Volume and Issue: unknown

Published: Nov. 11, 2024

Abstract In the context of thermochemical energy storage (TCES) for concentrating solar power (CSP) applications, metal carbonates’ reversible calcination and carbonation are gaining prominence, particularly in SrCO 3 /SrO system. This system is notable its high theoretical density 10.61 GJ/m³ operational temperatures up to 1,200 °C. However, like CaCO /CaO system, SrO experiences a significant drop reactivity during cycling due sintering agglomeration particles. this work proposed that conversion effective will be improved by mixing strontium carbonate with calcium carbonate. The best mix found was 80/20 /CaCO operating parameters calcination-carbonation °C 900 °C, respectively. reaction has notably better stable rate than pure study carried out using thermogravimetry analysis. mixture subjected 9 cycles, ninth cycle, there an 33.14 %, which, compared , 2.33 %; noticeably process. There increase percentage 30.81 %. Volumetric reduced from 6.93 2.81 GJ/m first after nine cycles. XRD analysis unprocessed 4 cycles showed no formation new or secondary compounds, only expected compounds: SrO, CaO, . important change explained looping because CaO remains encapsulated does not react completely at As hypothesis, encapsulation delays Using T carb = 850 promotes CaO. By promoting react, released rapidly, material faster Comparing seventh cycle it observed decreases 0.4431 0.4202 and, same proportion, volumetric density.

Language: Английский

Thermodynamic analysis of a synergistic integration of solid oxide fuel cell and solar-based chemical looping methane reforming unit for solar energy storage, power production, and carbon capture DOI Creative Commons
Salvatore F. Cannone, Muhammad Ishaq, Andrea Lanzini

et al.

Energy Conversion and Management, Journal Year: 2024, Volume and Issue: 302, P. 118080 - 118080

Published: Jan. 21, 2024

This study presents a thermodynamic analysis of novel concept that synergistically integrates solid oxide fuel cell with Ceria-based solar-chemical looping methane reforming system. The integrated configuration aims to simultaneously achieve solar energy storage, electric power production, carbon capture and in situ re-utilization. proposed hybrid system capitalises on the advantageous features unit, specifically oxygen carrier reduction during step for waste gas dissociation oxidation release. additional syngas produced is introduced cell, enabling further production stream schematic process modelled by solving mass balances at steady-state conditions. chemical parameters (fuel ratio, co-splitting ratio), material (Ceria effectiveness), (temperature, utilisation, operating voltage, steam-to-carbon ratio) are also examined. plant exhibits promising characteristics, achieving high electrical global efficiencies (63.6 % 70 %, respectively), density (404 kWh/m3) partial dioxide re-utilization net zero emissions.

Language: Английский

Citations

27

Al-doped Li4SiO4 for cyclic solar energy storage and CO2 capture: An experimental and DFT study DOI

Ruicheng Fu,

Bin Xu,

Jianchen Yi

et al.

Separation and Purification Technology, Journal Year: 2025, Volume and Issue: 354, P. 128621 - 128621

Published: Feb. 1, 2025

Language: Английский

Citations

6

Performance evaluation and multi-objective optimization of a solar-thermal-assisted energy system: Supercritical CO2 Brayton cycle and solid oxide electrolysis/fuel cells DOI Creative Commons

Zhicong Fang,

Zhichao Liu, Shuhao Zhang

et al.

Energy Conversion and Management, Journal Year: 2024, Volume and Issue: 308, P. 118404 - 118404

Published: April 10, 2024

Typical solar power tower (SPT) systems employ molten salt as the heat transfer and thermal energy storage medium to facilitate stable output. However, these are constrained by their limited operating temperature, which is insufficient supply for high-temperature electrolysis. In this paper, a small-scale (2.5 MW) solar-thermal-assisted system with SPT, supercritical CO2 (SCO2) Brayton cycle, solid oxide electrolysis/fuel cells (SOEC/SOFC) proposed. With via air, SOEC subsystem can operate at 800 ℃ reach high efficiency reduce electric demand, replaces conventional waste from flue gas produced fossil fuel combustion. Such convert excess electricity into hydrogen or sale provides 24 h day. The key factors determining performance investigated, including turbine inlet parameters, main compressor recompression fraction of SCO2 subsystem, temperature current density SOEC/SOFC subsystems. case study shows that net output 13365.4 kWh/d in summer ℃, 86.7 % higher compared 7157.6 when 600 ℃. To recoup investment costs 20th year, must be priced 6.5 $/kg. After multi-objective optimization, optimal exergy capital SPT-SCO2-SOEC determined 29.6 3.65 M$, respectively. For SOFC corresponding figures 56.1 0.23 M$ investment. This benefits generation production

Language: Английский

Citations

16

Wedge-shaped fins to enhance thermal performance of shell and tube heat exchangers containing phase change material: An experimental study DOI Creative Commons
Vahid Safari, Babak Kamkari,

Amir Gharbi

et al.

Thermal Science and Engineering Progress, Journal Year: 2024, Volume and Issue: 49, P. 102474 - 102474

Published: Feb. 19, 2024

This study addresses restricted thermal conductivity in phase change materials (PCMs) used latent heat storage (LHS) systems, aiming to enhance transfer efficiency by intensifying convective flow using a novel wedge fin design. A comparative experimental analysis is performed between wedge-finned and annular-finned tube exchangers (HXs), assuming equal material. Results show that the HX achieves higher Nusselt numbers, improved distribution, remarkable 12.8% reduction melting time compared at fluid (HTF) temperature of 90℃. Furthermore, exhibits substantial 84.3% decrease bare HX. These findings highlight practical significance employing design for improving LHS offering valuable insights optimization such systems.

Language: Английский

Citations

12

Acceleration mechanisms of Fe and Mn doping on CO2 separation of CaCO3 in calcium looping thermochemical heat storage DOI
Zhiguo Bian, Xiaotong Ma, Xiao Lü

et al.

Separation and Purification Technology, Journal Year: 2024, Volume and Issue: 351, P. 128057 - 128057

Published: May 22, 2024

Language: Английский

Citations

6

Oxygen Vacancy‐Rich Defects Porous Cu2MgO3/Mg0.78Cu0.22O Composite with Sinter‐Resistant and Highly Reactive for Long‐Duration High‐Temperature Thermochemical Energy Storage DOI
Jiali Deng,

Changdong Gu,

Haoran Xu

et al.

Advanced Functional Materials, Journal Year: 2024, Volume and Issue: 34(26)

Published: March 21, 2024

Abstract High‐temperature thermochemical energy storage based on metal oxides is the key technology to reducing levelized costs of electricity next‐generation concentrated solar power plants. CuO/Cu 2 O has wide availability and high density, but severe sintering leads low reactivity. In this study, an innovative approach modulate oxygen vacancy content change surface properties crystal structure enhance resistance redox reversibility proposed. The re‐oxidation degree increased from 46% 99%, release rate by 3.5 times. It remains 99.9% reduction 97.1% oxidation activity after 3000 cycles, which very valuable for engineering applications. Cu MgO 3 Mg 0.78 0.22 are prone form vacancies, promotes formation porous structures. Mg0 .78 helps /CuO/Cu deliver more through surface. firmly uniformly dispersed long cycling. They have a large binding energy, charge transfer enhanced bond at interface. mechanism composite in increasing temperature long‐term reaction stability revealed experimental theoretical calculations, provides new idea rational design materials.

Language: Английский

Citations

5

Kinetic investigation and numerical simulation of reactor with prepared diatomite/CaCO3 for high-temperature thermal energy storage application DOI
Jianing Chen,

Hui Su,

Haocheng Sun

et al.

Journal of Energy Storage, Journal Year: 2024, Volume and Issue: 96, P. 112694 - 112694

Published: June 22, 2024

Language: Английский

Citations

5

Review of Solar Thermochemical Heat Storage Equipment and Systems Based on Calcium-Looping DOI

Huizhe Wu,

Cong Luo, Tong Luo

et al.

Journal of Energy Storage, Journal Year: 2024, Volume and Issue: 103, P. 114146 - 114146

Published: Oct. 24, 2024

Language: Английский

Citations

5

Review on the worldwide developments and challenges for solar pyrolysis DOI Creative Commons
V.M. Maytorena, D.A. Buentello–Montoya

Heliyon, Journal Year: 2024, Volume and Issue: 10(15), P. e35464 - e35464

Published: Aug. 1, 2024

The solar pyrolysis of materials has emerged as a promising technology for their efficient conversion into solid char, syngas and oil. its challenges, however, constraints such intermittence scalability must be overcame to thrive. present work presents review the developments in considering development by country, employed, etcetera. Moreover, details on challenges potential future are presented. It was found that most been focused waste-handling, particular challenge exists an adequate control system achieve desired end products.

Language: Английский

Citations

4

Synthesis and properties of flexible supercapacitor based on Zinc-Aluminum layered doubled hydroxide DOI

Sajjad A. Hammood,

Ahmed S. Al-Asadi, Mohammed F. Al‐Mudhaffer

et al.

Journal of Alloys and Compounds, Journal Year: 2024, Volume and Issue: 1009, P. 176925 - 176925

Published: Oct. 9, 2024

Language: Английский

Citations

4