Energy最新文献 - Book学术

High-voltage bidirectional balancing structure and model predictive control for cell balancing of supercapacitors in heavy duty HEV applications 重型混合动力汽车中超级电容器电池平衡的高压双向平衡结构和模型预测控制

IF 9 1区工程技术

Energy Pub Date : 2025-04-26 DOI: 10.1016/j.energy.2025.136239

Rui Du, Bin Wang, Yanfeng Zhao, Wen Zhou, Chaohui Wang, Chunwu Xiao

{"title":"High-voltage bidirectional balancing structure and model predictive control for cell balancing of supercapacitors in heavy duty HEV applications","authors":"Rui Du, Bin Wang, Yanfeng Zhao, Wen Zhou, Chaohui Wang, Chunwu Xiao","doi":"10.1016/j.energy.2025.136239","DOIUrl":"10.1016/j.energy.2025.136239","url":null,"abstract":"<div><div>Supercapacitors, which offer unique high-power and fast charge/discharge operation performance, have emerged as a promising energy storage solution for heavy duty hybrid electric vehicle (HEV) applications. However, state-of-energy (SOE) inconsistency among supercapacitors would affect the safety and operating efficiency of the overall supercapacitor system. This study proposes a cell balancing method based on a novel high-voltage bidirectional balancing structure and a model predictive control (MPC) for supercapacitors in heavy duty HEV applications. To achieve high-efficiency energy balancing, the high-voltage bidirectional balancing structure with isolated DC-DC converters is developed. The isolated DC-DC converters can achieve special boost-buck balancing with a bidirectional flyback circuit. On this basis, the MPC is introduced for optimizing the balancing energy through the switch control of the bidirectional flyback circuit, which would achieve a fast and stable SOE balancing for supercapacitors. Simulation and experimental analyses are conducted to validate the proposed balancing method. Results show that the proposed balancing method can achieve fast balancing among supercapacitors in heavy duty HEV applications. Compared with the conventional constant current-constant voltage (CC-CV) control balancing method, it can reduce the balancing time by 34.4 %. Moreover, the proposed balancing method can achieve balancing accuracy up to 0.5 %.</div></div>","PeriodicalId":11647,"journal":{"name":"Energy","volume":"326 ","pages":"Article 136239"},"PeriodicalIF":9.0,"publicationDate":"2025-04-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143874969","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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

Optimization and feasibility analysis of waste heat recovery procedures in copper plant based on the collaborative analysis of T-Q-C diagram 基于T-Q-C图协同分析的铜厂余热回收流程优化及可行性分析

IF 9 1区工程技术

Energy Pub Date : 2025-04-26 DOI: 10.1016/j.energy.2025.136330

Chunlin Wang , Minghui Ma , Yanhe Li , Jiewen Deng , Hao Fang

{"title":"Optimization and feasibility analysis of waste heat recovery procedures in copper plant based on the collaborative analysis of T-Q-C diagram","authors":"Chunlin Wang , Minghui Ma , Yanhe Li , Jiewen Deng , Hao Fang","doi":"10.1016/j.energy.2025.136330","DOIUrl":"10.1016/j.energy.2025.136330","url":null,"abstract":"<div><div>This paper addresses the critical challenge of reducing energy consumption and CO<sub>2</sub> emissions in China's space heating sector by exploring industrial waste heat recovery in a copper smelter in Chifeng City. Traditional heating systems rely heavily on fossil fuels, contributing to 4 % of national energy consumption. The research proposes a novel T-Q-C diagram model, integrating temperature, heat, and carbon emission indices, to optimize waste heat utilization. Three innovative schemes are compared with the existing process: Scheme B (absorption heat pump-based full recovery), Scheme C (terminal large-temperature-difference recovery), and Scheme D (integrated recovery). The waste heat potential (369 MW) of copper plant is analyzed, with current recovery at 212 MW (57.46 % efficiency) and CO<sub>2</sub> emissions of 60.6 tons/MW·a. Scheme B achieves full recovery (369 MW) but lowers supply water temperature (53.4 °C) and reduces emissions to 49.2 tons/MW·a. Scheme C increases supply water temperature (69.9 °C) but recovers 93 % waste heat (344 MW) with emissions of 50.2 tons/MW·a. Scheme D combines the advantages of B and C, achieving full recovery (369 MW), higher supply water temperature (73.5 °C), and the lowest emissions (49.2 tons/MW·a). Economic analysis reveals Scheme D has the highest initial cost but optimal performance in heat recovery, temperature, and CO<sub>2</sub> emissions. The T-Q-C model proves effective in balancing technical, economic, and environmental factors, highlighting the potential of integrated technologies to advance sustainable urban heating under China's carbon neutrality goals.</div></div>","PeriodicalId":11647,"journal":{"name":"Energy","volume":"326 ","pages":"Article 136330"},"PeriodicalIF":9.0,"publicationDate":"2025-04-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143878821","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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

Integrating renewable energy for power security under water stress scenarios due to climate change: Strategies and opportunities 在气候变化导致的水资源紧张情景下，整合可再生能源以保障电力安全：战略与机遇

IF 9 1区工程技术

Energy Pub Date : 2025-04-25 DOI: 10.1016/j.energy.2025.136169

Paula Conde Santos Borba , André Rodrigues Gonçalves , Rodrigo Santos Costa , Meiriele Alvarenga Cumplido , Fernando Ramos Martins

{"title":"Integrating renewable energy for power security under water stress scenarios due to climate change: Strategies and opportunities","authors":"Paula Conde Santos Borba , André Rodrigues Gonçalves , Rodrigo Santos Costa , Meiriele Alvarenga Cumplido , Fernando Ramos Martins","doi":"10.1016/j.energy.2025.136169","DOIUrl":"10.1016/j.energy.2025.136169","url":null,"abstract":"<div><div>Hydropower systems are vulnerable to climate change effects, mainly in the Southern Hemisphere, risking energy security and investments in emerging markets. With Brazil as the representative case, this study explores strategies to enhance the power system’s reliability and opportunities amid water stress scenarios in 2050. This work presents a high-resolution power model, which optimizes capacity and dispatch simultaneously while minimizing the costs. Findings indicate a major role of wind energy and a decline in natural gas in water stress scenarios. However, extensive wind penetration is only possible when combined with storage systems, which remain mainly reservoir-based. Also, severe cases of water stress can increase the power system cost by up to 14.9% when combined with 100% renewable systems. The moderate cost scenarios have similar optimal results to advanced costs (less costly), indicating the high competition between wind and solar alternatives. Furthermore, expanding the wind farms portfolio may lead to surplus wind energy, particularly during the dry season when energy demand is lower. Such excess energy could potentially produce 0.46 Mt of green hydrogen annually, surpassing the current industry usage of 0.33 Mt in Brazil. Effective spatial planning is crucial, particularly considering that green hydrogen production requires water, and the surplus energy predominantly comes from the Northeast, where intense drought events are frequent.</div></div>","PeriodicalId":11647,"journal":{"name":"Energy","volume":"326 ","pages":"Article 136169"},"PeriodicalIF":9.0,"publicationDate":"2025-04-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143874893","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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

Toward energy-efficient heavy-duty vehicles: real-time mass estimation via confidence-embedded data-driven methods 迈向节能重型车辆：通过嵌入置信度的数据驱动方法进行实时质量估计

IF 9 1区工程技术

Energy Pub Date : 2025-04-25 DOI: 10.1016/j.energy.2025.136312

Yanlin Jin , Yinong Li , Ling Zheng , Bohao He , Xiantong Yang , Yu Zhang

{"title":"Toward energy-efficient heavy-duty vehicles: real-time mass estimation via confidence-embedded data-driven methods","authors":"Yanlin Jin , Yinong Li , Ling Zheng , Bohao He , Xiantong Yang , Yu Zhang","doi":"10.1016/j.energy.2025.136312","DOIUrl":"10.1016/j.energy.2025.136312","url":null,"abstract":"<div><div>The accurate estimation of vehicle mass is critical for optimizing energy-efficient driving strategies and ensuring chassis active safety control in new energy vehicles. However, while data-driven methods achieve high accuracy in training scenarios, they suffer from substantial performance degradation when encountering distribution shifts in input data. To address these challenges, this study proposes a novel deep neural network-based vehicle mass estimation model (τ-DNN) that incorporates input data confidence levels. The confidence levels are quantified by calculating the Euclidean distance between the input data and the clustering centers of the training data, which allows for weighted outputs of the estimation results. To enhance the model's ability to extract features from input sequences, this study integrates the multi-head attention mechanism with convolutional neural networks (CNNs) and bidirectional long short-term memory (BiLSTM) networks, thereby achieving more accurate vehicle mass estimation. Finally, 14 loading conditions and six driving conditions were established to train the τ-DNN model using data collected from heavy-duty vehicles (HDVs) in real-world environments. Offline testing using the self-built dataset and online real-time verification demonstrate that the τ-DNN model can effectively mitigate error peaks when the confidence of input data is low, consistently maintaining the estimated error below 10 % and controlling the RMSE to within 1.09 t. Compared with the existing LSTM and cubature Kalman filter (CKF) methods, the proposed algorithm demonstrates superior estimation performance, exhibiting higher estimation accuracy, stability, and generalization capability.</div></div>","PeriodicalId":11647,"journal":{"name":"Energy","volume":"326 ","pages":"Article 136312"},"PeriodicalIF":9.0,"publicationDate":"2025-04-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143879011","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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

Exploring the impact of coating strategies on temperature and emission characteristics of diesel particulate filters coated with selective catalytic reduction catalysts 探讨涂覆策略对选择性催化还原催化剂涂覆柴油微粒过滤器温度及排放特性的影响

IF 9 1区工程技术

Energy Pub Date : 2025-04-24 DOI: 10.1016/j.energy.2025.136221

Xiao-mei Yang, Pi-qiang Tan, Li-shuang Duan, Ying-jie Chen, Di-ming Lou, Zhi-yuan Hu

{"title":"Exploring the impact of coating strategies on temperature and emission characteristics of diesel particulate filters coated with selective catalytic reduction catalysts","authors":"Xiao-mei Yang, Pi-qiang Tan, Li-shuang Duan, Ying-jie Chen, Di-ming Lou, Zhi-yuan Hu","doi":"10.1016/j.energy.2025.136221","DOIUrl":"10.1016/j.energy.2025.136221","url":null,"abstract":"<div><div>Nitrogen oxides (NO<sub><em>x</em></sub>) and particulate number (PN) emissions from internal combustion engines can be reduced by SDPF (diesel particulate filters coated with selective catalytic reduction (SCR) catalysts). The internal temperature of SDPF is significantly influenced by the SCR catalyst coating strategy, thereby affecting emission characteristics. Four SDPFs were prepared according to different coating strategies. The effects of the coating strategy on temperature characteristics, fuel consumption, emission characteristics and passive regeneration were studied through engine bench tests. The results indicate that the inlet temperature of the SDPF, coated once with a high-concentration catalyst, is lower at 441.19 °C and exhibits the best uniformity in internal temperature distribution, with a coefficient of variation (<em>Cv</em>) of 0.64 %. Conversely, the SDPF coated twice with low-concentration catalyst and the second coating 1/2 length of substrate inlet channel shows the poorest uniformity, with temperature difference of 113.63 °C and <em>Cv</em> of 9.07 %. The catalyst coating strategy has a little effect on fuel consumption, within 5.0 %. The SDPF coated once with high-concentration catalyst has the highest NO<sub><em>x</em></sub> conversion rate, at 91.2 %, and the lowest total particulate number filtration efficiency, at 89.8 %. The selective catalytic reduction catalyst coating strategy has little effect on the passive regeneration of SDPF. Compared to the SDPF coated once with high-concentration catalyst, the SDPF coated twice with low-concentration catalyst has a higher pressure drop, with the maximum pressure drop increasing by 79.5 %.</div></div>","PeriodicalId":11647,"journal":{"name":"Energy","volume":"326 ","pages":"Article 136221"},"PeriodicalIF":9.0,"publicationDate":"2025-04-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143878742","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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

Application of a graph convolutional network for predicting the feasible operating regions of power to hydrogen facilities in integrated electricity and hydrogen-gas systems 图卷积网络在电力-氢气一体化系统中氢设施电力可行运行区域预测中的应用

IF 9 1区工程技术

Energy Pub Date : 2025-04-24 DOI: 10.1016/j.energy.2025.136107

Sheng Chen, Lei Zhu, Zhinong Wei, Guoqiang Sun, Yizhou Zhou

{"title":"Application of a graph convolutional network for predicting the feasible operating regions of power to hydrogen facilities in integrated electricity and hydrogen-gas systems","authors":"Sheng Chen, Lei Zhu, Zhinong Wei, Guoqiang Sun, Yizhou Zhou","doi":"10.1016/j.energy.2025.136107","DOIUrl":"10.1016/j.energy.2025.136107","url":null,"abstract":"<div><div>The integrated operation of electricity systems and power to hydrogen (PtH) facilities with direct hydrogen injection into natural gas pipeline systems provides important flexibility to accommodate the intermittent outputs of renewable energy sources. However, no efficient approach has yet been developed to quantify the feasible operating region of PtH facilities to ensure the stable and safe operations of both electric power and natural gas systems. The present work addresses this issue by analyzing the feasible operating regions of PtH facilities under constraints considered for both electric power and natural gas systems. A graph convolutional network (GCN) is trained to predict the nonlinear flows of electricity, hydrogen, and natural gas under a wide range of circumstances, and these predictions are employed to generate numerous feasible operating points efficiently. The GCN approach collects PtH operational data associated with different natural gas network topologies. The convex hull approach is then employed to construct the feasible operating region representing the smallest convex set that contains all operating points. The proposed models and methods are validated based on the numerical results obtained for an integrated IEEE 118-node power system and a 25-node natural gas system.</div></div>","PeriodicalId":11647,"journal":{"name":"Energy","volume":"326 ","pages":"Article 136107"},"PeriodicalIF":9.0,"publicationDate":"2025-04-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143874894","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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

Performance improvement, flame control, and NO emission reduction in MILD combustion: The role of magnetic fields in a Jet-Hot Coflow burner 性能改进、火焰控制和轻度燃烧中NO排放减少：磁场在射流共流燃烧器中的作用

IF 9 1区工程技术

Energy Pub Date : 2025-04-24 DOI: 10.1016/j.energy.2025.136268

Ali Ashouri, Mohammad Zabetian Targhi, Kavan Zarei, Kiumars Mazaheri

{"title":"Performance improvement, flame control, and NO emission reduction in MILD combustion: The role of magnetic fields in a Jet-Hot Coflow burner","authors":"Ali Ashouri, Mohammad Zabetian Targhi, Kavan Zarei, Kiumars Mazaheri","doi":"10.1016/j.energy.2025.136268","DOIUrl":"10.1016/j.energy.2025.136268","url":null,"abstract":"<div><div>Controlling flame, hot reaction zone extension, and NO emission reduction are the main challenges to improve the Moderate or Intense Low oxygen Dilution (MILD) combustion performance. To achieve these challenges, this paper pioneers the investigation of the impact of magnetic fields, a novel and underexplored approach, on MILD combustion performance in a Jet-Hot Coflow burner with flux densities of 0.5T, 1.0T, and 2.0T. Unlike previous works, this study systematically explores the interplay between magnetism and MILD combustion, revealing new possibilities for flame stabilization and emission control. NO formation mechanisms are locally studied in unprecedented detail to discover the dominant mechanisms in critical points, offering new insights into pollutant reduction strategies. Model accuracy is demonstrated by validation with several experimental studies and LES study results. The findings indicate that using magnetic fields enhances MILD combustion performance, regarding the quantitative analysis of MILD quality criteria. Additionally, it forms a vortex by applying the Lorentz force and Joule heating rate to the domain. Consequently, the magnetic field aids in the cold jet length reduction, residence time increment, hot region extension by 178 %, and only a 5 % increment in the average temperature, resulting in decreased NO emission by 90 %. The significant role of temperature and oxygen is identified in the NO formation, as the thermal is the dominant mechanism. The results recommend the magnetic field application for flame control and reducing pollutant emissions in MILD combustion. Ultimately, this research addresses challenges in improving MILD combustion quality and offers strategies for optimizing burner performance.</div></div>","PeriodicalId":11647,"journal":{"name":"Energy","volume":"326 ","pages":"Article 136268"},"PeriodicalIF":9.0,"publicationDate":"2025-04-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143876635","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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

Enhanced heat transfer of alveolar biomimetic interlaced hollow lattice metastructures 肺泡仿生交错中空晶格元结构的强化传热

IF 9 1区工程技术

Energy Pub Date : 2025-04-23 DOI: 10.1016/j.energy.2025.136272

Hanlin Song , Bin Han , Yao Wang , Qi Zhang

{"title":"Enhanced heat transfer of alveolar biomimetic interlaced hollow lattice metastructures","authors":"Hanlin Song , Bin Han , Yao Wang , Qi Zhang","doi":"10.1016/j.energy.2025.136272","DOIUrl":"10.1016/j.energy.2025.136272","url":null,"abstract":"<div><div>Lattice metastructures, known for superior heat exchange capabilities, are the focus of current research, which aims to maximize heat transfer performance by increasing the specific surface area of porous structures through innovative lattice designs. This study introduces an innovative alveolar biomimetic interlaced hollow lattice metastructure, inspired by interconnected sac-like alveolar structure, to enhance heat transfer efficiency. The metastructure achieves a maximum specific surface area up to 17 mm<sup>−1</sup>, significantly surpassing that of traditional structures like the TPMS on the same scale. Through thermo-fluidic analysis under forced convection conditions, the critical influence of the metastructure's unique design elements is revealed, including its interlaced lattice configuration, relative density, and pipe geometry, on flow dynamics and heat transfer performance. Results indicate that: (1) the designed metastructure exhibits superior overall heat transfer enhancement compared to the BCC structure, particularly at higher Reynolds numbers (<em>Re</em>). Notably, at <em>Re</em> ≈ 32000, the 45° metastructure demonstrates exceptional heat transfer enhancement, with a Nusselt number of 621.44, 48.8 % higher than BCC structure. (2) Its distinctive morphology induces a highly tortuous spiral primary flow and two distinct secondary flows (two types of vortex pairs). Such complex flow patterns inside and outside the pipes lead to enhanced heat transfer performance.</div></div>","PeriodicalId":11647,"journal":{"name":"Energy","volume":"326 ","pages":"Article 136272"},"PeriodicalIF":9.0,"publicationDate":"2025-04-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143879010","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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

Effects of n-butanol injection timing on mixture stratification, combustion and emission characteristics of n-butanol/diesel dual direct-injection engine 正丁醇喷油时机对正丁醇/柴油双直喷发动机混合气分层、燃烧及排放特性的影响

IF 9 1区工程技术

Energy Pub Date : 2025-04-23 DOI: 10.1016/j.energy.2025.136293

Manyao Xie, Ying Wang, Da Zhang, Kaibo Zhang, Yuanqi Bai

{"title":"Effects of n-butanol injection timing on mixture stratification, combustion and emission characteristics of n-butanol/diesel dual direct-injection engine","authors":"Manyao Xie, Ying Wang, Da Zhang, Kaibo Zhang, Yuanqi Bai","doi":"10.1016/j.energy.2025.136293","DOIUrl":"10.1016/j.energy.2025.136293","url":null,"abstract":"<div><div>In this paper, based on the CFD simulations, the effects of injection timing of n-butanol (InjB) on mixture stratification were quantified by a novel Sample Line method. Then InjB's impacts on combustion, emission characteristics and energy and exergy balance of dual fuel direct injection (DFDI) engine fueled n-butanol/diesel were studied in-depth. It was found that, with an earlier InjB, the distribution of n-butanol was more homogenous and the reactivity of mixture was higher, resulting in better combustion process and higher indicated thermal efficiency (ITE). As InjB was retarded, the inhomogeneity of concentration distribution of n-butanol increased. The concentration of n-butanol at the squish region was decreased and more high concentration region of n-butanol appeared at the bottom of combustion chamber pit. In addition, the wall-wetting phenomenon increased, causing more incomplete combustion and lower ITE. Compared with InjB = 150°CA BTDC, when InjB = 300°CA BTDC, the energy loss and exergy loss due to incomplete combustion were reduced by 0.17 kW and 1.88 %, respectively. The ITE enhanced by about 3.5 %, the soot emission was reduced, and the NO emission was slightly increased. Therefore, it was suggested to adopt an earlier InjB under medium loads to achieve high efficiency and clean combustion.</div></div>","PeriodicalId":11647,"journal":{"name":"Energy","volume":"326 ","pages":"Article 136293"},"PeriodicalIF":9.0,"publicationDate":"2025-04-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143876639","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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

Cascade and effective utilization of medium and deep geothermal energy: A comprehensive review and application prospects 中深层地热能梯级有效利用综述及应用前景

IF 9 1区工程技术

Energy Pub Date : 2025-04-23 DOI: 10.1016/j.energy.2025.136219

Hainan Zhang , Yin Li , Tao Ding , Shuangquan Shao , Yanhui Feng

{"title":"Cascade and effective utilization of medium and deep geothermal energy: A comprehensive review and application prospects","authors":"Hainan Zhang , Yin Li , Tao Ding , Shuangquan Shao , Yanhui Feng","doi":"10.1016/j.energy.2025.136219","DOIUrl":"10.1016/j.energy.2025.136219","url":null,"abstract":"<div><div>Geothermal energy has great potential in the green transformation of energy. The utilization of medium and deep geothermal energy should be considered from the comprehensive perspectives of underground and aboveground systems, energy cascade utilization, and tailored solutions. Currently, there is a lack of reviews covering these aspects. This paper comprehensively reviews the cascade development and effective utilization technology of medium and deep geothermal energy, focusing on the research progress of underground extraction and aboveground utilization systems. The underground technology includes U-shaped well, downhole coaxial heat exchanger and super-long gravity heat pipe, and the heat extraction efficiency is optimized by closed-loop design. The aboveground system combines power generation (such as organic Rankine cycle), heating and multi-stage co-production modes, and integrates solar energy, heat pump and phase change heat storage technologies to improve energy efficiency. Technical and economic optimization and system integration are the key to large-scale application. Taking Xiong'an New Area in China as an example, the differential development strategy of multi-temperature geothermal reservoirs and the cascade mode are discussed. The Xiong'an demonstration case verifies the feasibility and low-carbon potential of cascade utilization, and the suggestions provide a reference for similar geothermal areas in the world.</div></div>","PeriodicalId":11647,"journal":{"name":"Energy","volume":"326 ","pages":"Article 136219"},"PeriodicalIF":9.0,"publicationDate":"2025-04-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143874801","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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