Frontiers in Energy最新文献

Thermo-mechanical energy storage technologies: Innovations, challenges and future directions 热-机械储能技术：创新、挑战和未来方向

IF 3.1 4区工程技术

Frontiers in Energy Pub Date : 2025-04-15 DOI: 10.1007/s11708-025-1007-3

Yao Zhao, Mingjia Li, Kai Wang, Adriano Sciacovelli, Chris Qin, Steven Lecompte, André D. Thess

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A review of progress in thermo-mechanical energy storage technologies for combined cooling, heating and power applications 冷、热、电联合应用的热-机械储能技术进展综述

IF 3.1 4区工程技术

Frontiers in Energy Pub Date : 2025-03-30 DOI: 10.1007/s11708-025-0998-0

Jiaxing Huang, Yao Zhao, Jian Song, Shengqi Huang, Kai Wang, Zhenghua Rao, Yongliang Zhao, Liang Wang, Xi Wan, Yue Fei, Christos N. Markides

{"title":"A review of progress in thermo-mechanical energy storage technologies for combined cooling, heating and power applications","authors":"Jiaxing Huang, Yao Zhao, Jian Song, Shengqi Huang, Kai Wang, Zhenghua Rao, Yongliang Zhao, Liang Wang, Xi Wan, Yue Fei, Christos N. Markides","doi":"10.1007/s11708-025-0998-0","DOIUrl":"10.1007/s11708-025-0998-0","url":null,"abstract":"<div><p>Thermo-mechanical energy storage (TMES) technologies have attracted significant attention due to their potential for grid-scale, long-duration electricity storage, offering advantages such as minimal geographical constraints, low environmental impact, and long operational lifespans. A key benefit of TMES systems is their ability to perform energy conversion steps that enable interaction with both thermal energy consumers and prosumers, effectively functioning as combined cooling, heating and power (CCHP) systems. This paper reviews recent progress in various TMES technologies, focusing on compressed-air energy storage (CAES), liquid-air energy storage (LAES), pumped-thermal electricity storage (PTES, also known as Carnot battery), and carbon dioxide energy storage (CES), while exploring their potential applications as extended CCHP systems for trigeneration. Techno-economic analysis indicate that TMES-based CCHP systems can achieve roundtrip (power-to-power) efficiencies ranging from 40% to 130%, overall (trigeneration) energy efficiencies from 70% to 190%, and a levelized cost of energy (with cooling and heating outputs converted into equivalent electricity) between 70 and 200 $/MWh. In general, the evolution of TMES-based CCHP systems into smart multi-energy management systems for cities or districts in the future is a highly promising avenue. However, current economic analyses remain incomplete, and further exploration is needed, especially in the area “AI for energy storage,” which is crucial for the widespread adoption of TMES-based CCHP systems.</p></div>","PeriodicalId":570,"journal":{"name":"Frontiers in Energy","volume":"19 2","pages":"117 - 143"},"PeriodicalIF":3.1,"publicationDate":"2025-03-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143925490","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

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Bird skeleton-inspired 3D hollow diamond-enhanced PEG composite PCM for photothermal conversion and thermal management 鸟骨架启发的3D空心钻石增强PEG复合材料PCM光热转换和热管理

IF 3.1 4区工程技术

Frontiers in Energy Pub Date : 2025-03-20 DOI: 10.1007/s11708-025-0991-7

Zihao Zhao, Xurui Feng, Daili Feng, Chengming Li, Yanhui Feng, Junjun Wei

{"title":"Bird skeleton-inspired 3D hollow diamond-enhanced PEG composite PCM for photothermal conversion and thermal management","authors":"Zihao Zhao, Xurui Feng, Daili Feng, Chengming Li, Yanhui Feng, Junjun Wei","doi":"10.1007/s11708-025-0991-7","DOIUrl":"10.1007/s11708-025-0991-7","url":null,"abstract":"<div><p>The use of porous skeletons for encapsulating phase change materials (PCMs) is an effective approach to addressing issues such as leakage, low thermal conductivity, and poor photothermal conversion efficiency. Inspired by the hollow skeletal structure found in birds in nature, high-quality 3D interconnected hollow diamond foam (HDF) was fabricated using a series of processes, including microwave plasma chemical vapor deposition (CVD), laser perforation, and acid immersion. This HDF was then used as a scaffold to encapsulate PEG2000. The results demonstrate that HDF significantly reduces the supercooling degree and latent heat discrepancy of PEG2000. Compared to pure PEG2000, the thermal conductivity of the HDF/PEG increased by 378%, while its latent heat reached 111.48 J/g, accompanied by a photothermal conversion efficiency of up to 86.68%. The significant performance improvement is mainly attributed to the combination of the excellent properties of the diamond with the inherent advantages of the 3D interconnected structure in HDF, which creates a high-conductivity transport network inside. Moreover, the HDF/PEG composite extends the temperature cycling time of electronic components by 4 times for heating and 2.3 times for cooling, thereby prolonging the operational lifetime of electronic devices. HDF/PEG offers an integrated solution for solar energy collection, photothermal conversion, heat dissipation in electronic components, and thermal energy transfer/storage. This innovative approach provides innovative ideas for the design and fabrication of composite PCMs and has great application potential, such as solar energy utilization, thermal management, and thermal energy storage.</p></div>","PeriodicalId":570,"journal":{"name":"Frontiers in Energy","volume":"19 2","pages":"227 - 239"},"PeriodicalIF":3.1,"publicationDate":"2025-03-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143925687","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

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A carbon dioxide energy storage system with high-temperature graded heat storage structure: Thermodynamic intrinsic cycle construction and performance analysis 高温分级蓄热结构的二氧化碳储能系统：热力学固有循环构建与性能分析

IF 3.1 4区工程技术

Frontiers in Energy Pub Date : 2025-03-15 DOI: 10.1007/s11708-025-0995-3

Jiahao Hao, Pingyang Zheng, Yanchang Song, Zhentao Zhang, Junling Yang, Yunkai Yue

{"title":"A carbon dioxide energy storage system with high-temperature graded heat storage structure: Thermodynamic intrinsic cycle construction and performance analysis","authors":"Jiahao Hao, Pingyang Zheng, Yanchang Song, Zhentao Zhang, Junling Yang, Yunkai Yue","doi":"10.1007/s11708-025-0995-3","DOIUrl":"10.1007/s11708-025-0995-3","url":null,"abstract":"<div><p>Carbon dioxide energy storage (CES) is an emerging compressed gas energy storage technology which offers high energy storage efficiency, flexibility in location, and low overall costs. This study focuses on a CES system that incorporates a high-temperature graded heat storage structure, utilizing multiple heat exchange working fluids. Unlike traditional CES systems that utilize a single thermal storage at low to medium temperatures, this system significantly optimizes the heat transfer performance of the system, thereby improving its cycle efficiency. Under typical design conditions, the round-trip efficiency of the system is found to be 76.4%, with an output power of 334 kW/(kg·s<sup>−1</sup>) per unit mass flow rate, through mathematical modeling. Performance analysis shows that increasing the total pressure ratio, reducing the heat transfer temperature difference, improving the heat exchanger efficiency, and lowering the ambient temperature can enhance cycle efficiency. Additionally, this paper proposes a universal and theoretical CES thermodynamic intrinsic cycle construction method and performance prediction evaluation method for CES systems, providing a more standardized and accurate approach for optimizing CES system design.</p></div>","PeriodicalId":570,"journal":{"name":"Frontiers in Energy","volume":"19 2","pages":"240 - 255"},"PeriodicalIF":3.1,"publicationDate":"2025-03-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143925605","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

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Dimethyl ether: A promising fuel for marine engines 二甲醚：一种很有前途的船用发动机燃料

IF 3.1 4区工程技术

Frontiers in Energy Pub Date : 2025-02-28 DOI: 10.1007/s11708-025-0986-4

Zhen Huang, Wugao Zhang, Dong Han, Lei Zhu, He Lin, Bin Guan

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Highlights of key advances in China’s wind turbines technology in 2024 2024 年中国风力涡轮机技术主要进展亮点

IF 3.1 4区工程技术

Frontiers in Energy Pub Date : 2025-02-20 DOI: 10.1007/s11708-025-0987-3

Haiyan Qin, Hongyuan Yang, Haoran Li, Guangping Du

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Highlights of mainstream solar cell efficiencies in 2024 2024年主流太阳能电池效率的亮点

IF 3.1 4区工程技术

Frontiers in Energy Pub Date : 2025-01-30 DOI: 10.1007/s11708-025-0985-5

Wenzhong Shen, Yixin Zhao, Feng Liu

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Top 8 most influential events in global carbon neutrality and climate change response in 2024 2024年全球碳中和和气候变化应对中最具影响力的8大事件

IF 3.1 4区工程技术

Frontiers in Energy Pub Date : 2025-01-15 DOI: 10.1007/s11708-025-0981-9

Research Institute of Carbon Neutrality, Shanghai Jiao Tong University

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Engineering Fronts 2024 announced engineering fronts in the fields of Energy and Electrical Science and Technology 工程前沿2024宣布了能源和电气科学与技术领域的工程前沿

IF 3.1 4区工程技术

Frontiers in Energy Pub Date : 2025-01-15 DOI: 10.1007/s11708-025-0980-x

Liang Yin, Ruiqin Liu, Yonglin Ju

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Performance evaluation and optimization of a novel compressed CO2 energy storage system based on gas-liquid phase change and cold-electricity cogeneration 基于气液相变和冷电热电联产的新型压缩CO2储能系统性能评价与优化

IF 3.1 4区工程技术

Frontiers in Energy Pub Date : 2025-01-05 DOI: 10.1007/s11708-025-0973-9

Ding Wang, Jiahua Wu, Shizhen Liu, Dongbo Shi, Yonghui Xie

{"title":"Performance evaluation and optimization of a novel compressed CO2 energy storage system based on gas-liquid phase change and cold-electricity cogeneration","authors":"Ding Wang, Jiahua Wu, Shizhen Liu, Dongbo Shi, Yonghui Xie","doi":"10.1007/s11708-025-0973-9","DOIUrl":"10.1007/s11708-025-0973-9","url":null,"abstract":"<div><p>Compressed CO<sub>2</sub> energy storage (CCES) system has received widespread attention due to its superior performance. This paper proposes a novel CCES concept based on gas-liquid phase change and cold-electricity cogeneration. Thermodynamic and exergoeconomic analyses are performed under simulation conditions, followed by an investigation of the impacts of various decision parameters on the proposed system. Next, a multi-objective optimization is conducted with the total energy efficiency and total product unit cost as the objective functions. Finally, brief comparisons are made between the proposed system and existing systems. The results indicate that the total energy efficiency of the proposed system reaches 79.21% under the given simulation conditions, outperforming the electrical efficiency of 61.27%. Additionally, the total product unit cost of the system is 25.61 $/GJ. A key component, T1, plays an important role due to its large exergy destruction rate (1.0591 MW) and total investment cost rate (154.85 $/h). Despite this, the exergoeconomic factors of T1 is only 41.08%, indicating that investing in T1 to improve the efficiency is practicable. The analysis shows that a lower CO<sub>2</sub> condensation temperature benefits the proposed system performance. While improving the isentropic efficiencies of the compressors and turbines enhances total energy efficiency, excessive isentropic efficiencies can lead to a significant increase in total product unit cost. Through multi-objective optimization, an optimal favorable operating condition is identified, yielding a compromise result with a total energy efficiency of 111.91% and a total product unit cost of 28.35 $/GJ. The proposed CCES system efficiently delivers both power and cooling energy, demonstrating clear superiorities over previous systems.</p></div>","PeriodicalId":570,"journal":{"name":"Frontiers in Energy","volume":"19 2","pages":"205 - 226"},"PeriodicalIF":3.1,"publicationDate":"2025-01-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143925543","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0