Journal of energy storage最新文献_第6页

Development of three-dimensional MoSe2/graphene-flake composite toward high-performance symmetric supercapacitor: An experimental and theoretical study

IF 8.9 2区工程技术

Journal of energy storage Pub Date : 2025-03-31 DOI: 10.1016/j.est.2025.116354

Bijoy Jana , Rajib Nath , Joydip SenGupta , Achintya Singha , Kaustuv Das

{"title":"Development of three-dimensional MoSe2/graphene-flake composite toward high-performance symmetric supercapacitor: An experimental and theoretical study","authors":"Bijoy Jana , Rajib Nath , Joydip SenGupta , Achintya Singha , Kaustuv Das","doi":"10.1016/j.est.2025.116354","DOIUrl":"10.1016/j.est.2025.116354","url":null,"abstract":"<div><div>This work is an experimental and theoretical study in developing a symmetric supercapacitor composite of MoSe<sub>2</sub> and graphene flakes as electrodes. A theoretical analysis has been performed confirming the superior charge storage capability of the composite structure and its effectiveness as both active cathode and anode material in a symmetric supercapacitor. The three-dimensional MoSe<sub>2</sub>-graphene flakes with different compositions are synthesized via the hydrothermal method. A notable electrochemical capacitance, specifically 748 F/g at 1 A/g demonstrates its potential as electrode material in supercapacitors. Additionally, the composite demonstrates a sufficiently high energy density of 48.7 Wh/kg at 1 A/g and a power density of 3 kW/kg at 5 A/g. Furthermore, the material has good stability, retaining 78 % capacity at 6 A/g with 94 % coulombic efficiencies even after 13,000 testing cycles. A pair of symmetric supercapacitors is used to illuminate sixteen red light-emitting diodes (LEDs) for up to 7.30 min. The device also exhibits satisfactory retention of electrochemical performance, when the bending test is carried out from 0<sup>o</sup> to 165<sup>o</sup>, showing good mechanical stability. The material thus shows significant promise in advanced energy storage applications, particularly within the high-performance flexible supercapacitor domain.</div></div>","PeriodicalId":15942,"journal":{"name":"Journal of energy storage","volume":"120 ","pages":"Article 116354"},"PeriodicalIF":8.9,"publicationDate":"2025-03-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143739502","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

Construction of Cu(OH)2/PBAs nanorod array heterostructures for high performance of hybrid supercapacitors

IF 8.9 2区工程技术

Journal of energy storage Pub Date : 2025-03-31 DOI: 10.1016/j.est.2025.116473

Yaya Wang , Qingyang Yin , Fuhuai Cao, Chao Yang, Tong Xu, Rongmei Liu

{"title":"Construction of Cu(OH)2/PBAs nanorod array heterostructures for high performance of hybrid supercapacitors","authors":"Yaya Wang , Qingyang Yin , Fuhuai Cao, Chao Yang, Tong Xu, Rongmei Liu","doi":"10.1016/j.est.2025.116473","DOIUrl":"10.1016/j.est.2025.116473","url":null,"abstract":"<div><div>Copper-based oxides and hydroxides have attracted much attention due to their outstanding electrochemical activity, considerable theoretical capacity and excellent environmental compatibility. Moreover, they have low cost, abundant reserves and low toxicity. Prussian blue analogues (PBAs) have high porosity and high specific surface area, which can provide more abundant and efficient channels for the transmission of electrons, further enhancing their application potential. By combining the two materials and utilizing their synergistic effects, we obtain heterostructured electrode materials with good electrochemical performance. Therefore, this study adopted an innovative method to grow Cu(OH)<sub>2</sub> on the copper foam substrate. Subsequently, a part of them was transformed into Prussian blue analogues (PBAs) through a hydrothermal reaction, making use of the synergy effect of the two. This strategy not only endows the material with a unique heterogeneous structure, but also significantly improves its electrochemical performance, thereby obtaining the high-performance electrode material of Cu(OH)<sub>2</sub>/PBAs. At 1 A g<sup>−1</sup>, this composite material has a good specific capacitance (896.69 F g<sup>−1</sup>). When assembling it into a hybrid asymmetric button-type supercapacitor, it also exhibits good specific capacity (1457.5 F g<sup>−1</sup>), energy density (518.22 Wh kg<sup>−1</sup>), power density (1599.99 W kg<sup>−1</sup>), and excellent cycling performance. After 6000 charge and discharge cycles, the specific capacity retention rate still reaches 99.67 %. Therefore, Cu(OH)<sub>2</sub>/PBAs heterostructured composites have great potential for application as electrode materials.</div></div>","PeriodicalId":15942,"journal":{"name":"Journal of energy storage","volume":"120 ","pages":"Article 116473"},"PeriodicalIF":8.9,"publicationDate":"2025-03-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143739500","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

Numerical and experimental study on the effect of metal wire matrix on the melting heat storage efficiency of n-octadecane heated from below

IF 8.9 2区工程技术

Journal of energy storage Pub Date : 2025-03-31 DOI: 10.1016/j.est.2025.116387

Shihao Cao , Xijia Zhao , Yu Chen , Jianwei Wang , Rongshan Yang

{"title":"Numerical and experimental study on the effect of metal wire matrix on the melting heat storage efficiency of n-octadecane heated from below","authors":"Shihao Cao , Xijia Zhao , Yu Chen , Jianwei Wang , Rongshan Yang","doi":"10.1016/j.est.2025.116387","DOIUrl":"10.1016/j.est.2025.116387","url":null,"abstract":"<div><div>Phase change materials (PCM) enhanced with a metal wire matrix improve energy storage efficiency. However, the interplay between enhanced thermal conduction and suppressed natural convection (NC) during the melting process remains inadequately understood. This paper presents a systematic numerical analysis of the influence of metal wire on heat storage efficiency by improving thermal conductivity, reducing NC, and altering the melting mode. The accuracy of the analysis was validated by comparison with experimental melting results. The results show that the high thermal conductivity channel constructed by the 5 × 5 metal wire can reduce the TMT reduction radio to 40.2 %. Under the competition between thermal conduction and NC, the heat storage efficiency initially decreases and then increases with the increase of metal wire cells, with the 2 × 2 metal wire structure showing the lowest efficiency. Similarly, with increasing metal wire wall thickness, the effect on energy storage efficiency initially shows suppression and then enhancement. By analyzing these effects, the critical wall thickness for various metal wire configurations were determined, providing parameter support for the design of metal wire enhanced PCM.</div></div>","PeriodicalId":15942,"journal":{"name":"Journal of energy storage","volume":"120 ","pages":"Article 116387"},"PeriodicalIF":8.9,"publicationDate":"2025-03-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143739499","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

Experimental demonstration of a multi-stage boiling heat extraction concept for high-temperature metallic phase change thermal energy storage in electric vehicles

IF 8.9 2区工程技术

Journal of energy storage Pub Date : 2025-03-31 DOI: 10.1016/j.est.2025.116427

Frank Nees, Lukas Ignatzi, Tjark Siefkes

{"title":"Experimental demonstration of a multi-stage boiling heat extraction concept for high-temperature metallic phase change thermal energy storage in electric vehicles","authors":"Frank Nees, Lukas Ignatzi, Tjark Siefkes","doi":"10.1016/j.est.2025.116427","DOIUrl":"10.1016/j.est.2025.116427","url":null,"abstract":"<div><div>Thermal energy storage using metallic phase change materials is a promising technology for enhancing the thermal management of electric vehicles in cold environments. However, the high operating temperature range of such systems poses challenges for thermal discharge, especially when transferring heat to the vehicle's coolant circuit. This study proposes a novel multi-stage boiling heat extraction concept for thermal discharge and presents a prototype design with experimental validation. The lab-scale storage system utilizes an aluminum‑silicon alloy housed in a box-shaped graphite container. Heat extraction is achieved through a closed-loop boiling and condensing cycle using water as the working fluid, where the extracted heat is controllable and can be shut off as needed. Experiments were conducted successfully across an operating temperature range of 650 °C to 100 °C. High specific heat discharge rates were achieved at various storage temperatures—high, medium, and low—with peak values exceeding 20 W/cm<sup>2</sup>. The system effectively utilizes both the latent and sensible heat of the storage material, demonstrating high efficiency and low pumping power requirements. Under pressure-tight conditions, the absolute pressure in the discharge system remained below 1.4 bar. The experimental results confirm the functionality of this novel concept, overcoming the challenges of transferring high-temperature storage heat to a vehicle's coolant circuit and providing a viable technical solution for future applications.</div></div>","PeriodicalId":15942,"journal":{"name":"Journal of energy storage","volume":"120 ","pages":"Article 116427"},"PeriodicalIF":8.9,"publicationDate":"2025-03-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143739578","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Covalently anchoring silsesquioxanes layer onto fiber separator for high-rate-charging and long-cycling lithium metal battery

IF 8.9 2区工程技术

Journal of energy storage Pub Date : 2025-03-31 DOI: 10.1016/j.est.2025.116413

Dongxia Li , Xuefeng Gui , Qiong Lin , Xuan Song , Longfeng Sun , Zhongxin Wang , Xiangfeng Sun , Yuxin Xue , Chongxian Luo , Lingli Liu , Kai Xu

{"title":"Covalently anchoring silsesquioxanes layer onto fiber separator for high-rate-charging and long-cycling lithium metal battery","authors":"Dongxia Li , Xuefeng Gui , Qiong Lin , Xuan Song , Longfeng Sun , Zhongxin Wang , Xiangfeng Sun , Yuxin Xue , Chongxian Luo , Lingli Liu , Kai Xu","doi":"10.1016/j.est.2025.116413","DOIUrl":"10.1016/j.est.2025.116413","url":null,"abstract":"<div><div>The practical application of lithium metal batteries (LMBs) is impeded by the uncontrolled growth of lithium dendrites and the infinite volume expansion of the lithium anode during cycling, which results in low coulombic efficiency and premature failure. Designing a multifunctional separator with abundant ion migration pathways and robust mechanical properties is essential for optimizing ion transport in LMBs. Herein, a mechanically stable hybrid fiber separator is developed by introducing functional octasilsesquioxane (CSQ) layer onto nano/microfibrous polymer separators (EHMs). The lithiophilic –NH and C<img>F groups from the obtained separator increase the electrolyte wettability of the separator and decrease the diffusion barrier for lithium ions. Furthermore, the anchoring CSQ layer established an intimate interfacial mechanical interlock between fibers significantly enhancing the mechanical strength and electrochemical stability of the obtained separator, thereby suppressing lithium dendrites growth to delay the time penetrating through the separator. As a result, the EHM-10 separator exhibits a remarkable Li<sup>+</sup> transference number (0.84) and ultrawide electrochemical window (5.4 V), as well as a long-term stable reversible Li plating/striping in Li||Li cells (over 2000 h). In addition, the Li||LiFePO<sub>4</sub> cell with EHM-10 separator exhibits superior rate and cycle performance (high discharge specific capacity of 104.2 mAh g<sup>−1</sup> after 200 cycles each at 8 C and 10 C). This work demonstrates a feasible and scalable approach towards the advancement of long-life and high-rate lithium metal batteries.</div></div>","PeriodicalId":15942,"journal":{"name":"Journal of energy storage","volume":"120 ","pages":"Article 116413"},"PeriodicalIF":8.9,"publicationDate":"2025-03-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143739577","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

Zinc ion coordination doped polyaniline electrode for high performance supercapacitors

IF 8.9 2区工程技术

Journal of energy storage Pub Date : 2025-03-30 DOI: 10.1016/j.est.2025.116431

Zhengguang Pan , Bo Cui , Xianhong Gong , Xia Wang , Haowen Luo , Xiang Ke , Rui Yang , Chunliang Yang , Guiming Xie

{"title":"Zinc ion coordination doped polyaniline electrode for high performance supercapacitors","authors":"Zhengguang Pan , Bo Cui , Xianhong Gong , Xia Wang , Haowen Luo , Xiang Ke , Rui Yang , Chunliang Yang , Guiming Xie","doi":"10.1016/j.est.2025.116431","DOIUrl":"10.1016/j.est.2025.116431","url":null,"abstract":"<div><div>Polyaniline (PANI) is a promising supercapacitor electrode material due to its inherent electrical conductivity and high specific capacitance. However, the molecular structure of PANI is susceptible to destroyed due to the volume expansion and contraction during repetitive charging and discharging processes, leading to the decrease of the cycling stability. Therefore, enhancing the electrochemical cycling stability of PANI electrode materials is the key technologies for PANI application in supercapacitors. In this study, a one-step electrodeposition method achieved zinc ion coordination doping of polyaniline on a carbon cloth substrate. Coordination of zinc ions with the imine groups on the polyaniline chain enhanced the interaction between the PANI molecular chains, significantly improving the cycling stability and electrochemical properties of PANI electrode. PANI-Zn<sub>0.10</sub> has an area-specific capacitance of up to 2665 mF·cm<sup>−2</sup> at 5 mA·cm<sup>−2</sup>. PANI-Zn<sub>0.10</sub><sub>–</sub><sub>13.6</sub> electrodes with a mass loading up to 13.6 mg·cm<sup>−2</sup> achieved an area-specific capacitance of 3549 mF·cm<sup>−2</sup> at a current density of 5 mA·cm<sup>−2</sup>. The assembled flexible symmetric supercapacitor exhibits a high energy density of 50.1 Wh·kg<sup>−1</sup> (269.3 μWh·cm<sup>−2</sup>) at a power density of 443.3 W·kg<sup>−1</sup> (2400 μW·cm<sup>−2</sup>). The assembled button-type symmetric supercapacitor exhibited remarkable capacitance retention of 87.49 % even after 5000 cycles at 5 mA·cm<sup>−2</sup>. It has been shown that PANI-Zn coordination polymers have excellent electrochemical properties and great potential for application in the field of energy storage devices.</div></div>","PeriodicalId":15942,"journal":{"name":"Journal of energy storage","volume":"120 ","pages":"Article 116431"},"PeriodicalIF":8.9,"publicationDate":"2025-03-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143739576","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

Identification of ohmic internal resistance of batteries based on cloud data

IF 8.9 2区工程技术

Journal of energy storage Pub Date : 2025-03-30 DOI: 10.1016/j.est.2025.116364

Bangxiong Pan , Jingjing Sun , Xiuliang Zhao , Liang Liu , Limei Wang , Chaofeng Pan , Yun Wang

{"title":"Identification of ohmic internal resistance of batteries based on cloud data","authors":"Bangxiong Pan , Jingjing Sun , Xiuliang Zhao , Liang Liu , Limei Wang , Chaofeng Pan , Yun Wang","doi":"10.1016/j.est.2025.116364","DOIUrl":"10.1016/j.est.2025.116364","url":null,"abstract":"<div><div>The accurate identification of ohmic internal resistance has a great influence on the estimation of battery state, which is an objective requirement of battery management system (BMS). This paper proposes an ohmic internal resistance calculation method by transforming the low-rate charge voltage curve of cloud data. Firstly, the characteristics of ohmic internal resistance of two type lithium-ion batteries are analyzed under different working conditions. Then, the ohmic internal resistances are identified from the discharge segments of cloud data based on the analogous hybrid pulse power characterization (HPPC) method. Results show that the ohmic internal resistance calculated by the analogous HPPC method is larger due to the effect of sampling period. Subsequently, three universal open circuit voltage (OCV) solution methods are discussed, and the polarization and hysteresis characteristics of the calculated OCV curves are analyzed. Further, an ohmic internal resistance calculation method is proposed, which uses the OCV curve measured by the small charging current method as a baseline. Finally, the ohmic internal resistances are calculated based on the proposed method and compared with the results obtained in the laboratory. Results show that the absolute error of the calculated ohmic internal resistance is 0.085 mΩ and 0.11 mΩ for the two type batteries, which verifies the accuracy and applicability of the proposed method.</div></div>","PeriodicalId":15942,"journal":{"name":"Journal of energy storage","volume":"120 ","pages":"Article 116364"},"PeriodicalIF":8.9,"publicationDate":"2025-03-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143739575","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

Polyaniline intercalated layered VOPO4·2H2O: An organic-inorganic hybrid cathode for high performance aqueous zinc-ion batteries

IF 8.9 2区工程技术

Journal of energy storage Pub Date : 2025-03-30 DOI: 10.1016/j.est.2025.116426

Abdullahi Biodun Olabintan , Tawfik A. Saleh , Amir Al-Ahmed

{"title":"Polyaniline intercalated layered VOPO4·2H2O: An organic-inorganic hybrid cathode for high performance aqueous zinc-ion batteries","authors":"Abdullahi Biodun Olabintan , Tawfik A. Saleh , Amir Al-Ahmed","doi":"10.1016/j.est.2025.116426","DOIUrl":"10.1016/j.est.2025.116426","url":null,"abstract":"<div><div>Considering the mechanism of charge intercalation, an optimized tuning of the interlayer spacing and microstructure is vital for realizing enhanced Zn<sup>2+</sup> storage performance of the inexpensive two-dimensional (2D) layered vanadyl phosphate, VOPO<sub>4</sub>·2H<sub>2</sub>O (VP). Herein, we report a facile development of an organic-inorganic conductive polyaniline (PA) intercalated hybridized cathode (PA-VP) by pre-intercalating aniline monomers and subsequent in situ polymerization within the VP layers. The electrostatic interactions between the V<img>O/P<img>O layer and Zn<sup>2+</sup> can be efficiently lessened owing to the distinctive π-conjugated structure and the “pillars” effects of PA. More significantly, the conjugated conductive intercalant PA could intrinsically prompt electron transport to lower vanadium chemical valence states, which is crucial for improving electronic conductivity. Furthermore, the resulting PA-VP microstructure provides rich active sites for Zn<sup>2+</sup> intercalation and facilitates contact with the electrolyte. Correspondingly, the PA-VP cathode with an interlayer d-spacing of 14.6 Å delivers a maximum specific capacity of 223.9 mAh g<sup>−1</sup> at 0.1 A g<sup>−1</sup> and outstanding cycling performance of 86.7 % capacity retention after 500 cycles. Thus, our approach offers a practical solution to slow Zn<sup>2+</sup> diffusion kinetics and unsatisfactory stability of layered VOPO<sub>4</sub>·2H<sub>2</sub>O, and also provides insight into the principle of interlayer chemistry for realizing superior zinc ion batteries (ZIBs).</div></div>","PeriodicalId":15942,"journal":{"name":"Journal of energy storage","volume":"120 ","pages":"Article 116426"},"PeriodicalIF":8.9,"publicationDate":"2025-03-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143739501","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

A convolutional neural network based energy management system for photovoltaic/battery systems in microgrid using enhanced coati optimization approach

IF 8.9 2区工程技术

Journal of energy storage Pub Date : 2025-03-29 DOI: 10.1016/j.est.2025.116252

Srikanth D , G. Durga Sukumar , Polamraju V.S. Sobhan

{"title":"A convolutional neural network based energy management system for photovoltaic/battery systems in microgrid using enhanced coati optimization approach","authors":"Srikanth D , G. Durga Sukumar , Polamraju V.S. Sobhan","doi":"10.1016/j.est.2025.116252","DOIUrl":"10.1016/j.est.2025.116252","url":null,"abstract":"<div><div>The study proposes a centralized novel approach for energy management system (EMS) based on Convolutional Neural Networks (CNNs) designed for microgrids that incorporate hybrid PV and BESS DGs. Additionally, a CNN-EMS has been created that enables near-real-time SoC balancing by using NNs to learn the nonlinear mapping between the cause and the control action. The trained NN-based central controller does not need to do intricate calculations to forecast nearly optimal control actions in virtually real-time. The CNN weights are optimized using a novel Enhanced Coati Optimization (<em>E</em>-COA) approach. This method improves the accuracy and efficiency of the CNN-based EMS and the accompanying error measurements are predicted. The experimental assessment and analysis will be done, and the performance of the provided technique will be simulated using MATLAB. The results show that proposed method outperforms existing techniques in terms of error reduction. Specifically, when comparing learning percentages across various error indices, proposed method achieved the lowest Mean Absolute Error (MAE) values: 8.23 % at 60 %, 3.08 % at 70 %, and 2.81 % at 80 %, all of which are lower than those of existing methods. These findings demonstrate that the proposed system significantly improves forecasting accuracy and prediction effectiveness.</div></div>","PeriodicalId":15942,"journal":{"name":"Journal of energy storage","volume":"119 ","pages":"Article 116252"},"PeriodicalIF":8.9,"publicationDate":"2025-03-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143725284","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

Study on thermal storage performance and heat transfer blind area of multi-tube phase change heat storage tank

IF 8.9 2区工程技术

Journal of energy storage Pub Date : 2025-03-29 DOI: 10.1016/j.est.2025.116390

Yumo Xie , Juan Zhao , Junmei Gao , Yongcai Li , Rui Liu

{"title":"Study on thermal storage performance and heat transfer blind area of multi-tube phase change heat storage tank","authors":"Yumo Xie , Juan Zhao , Junmei Gao , Yongcai Li , Rui Liu","doi":"10.1016/j.est.2025.116390","DOIUrl":"10.1016/j.est.2025.116390","url":null,"abstract":"<div><div>Phase change heat storage tank has application value in solar heating system and waste heat utilization. However, due to the different melting sequence of phase change units, there will be a heat transfer blind area, which greatly affects the heat storage performance of tank. In this paper, the experimental platform of multi-tube phase change heat storage tank was set up to investigate the melting sequence and characteristics of phase change material (PCM) under different working conditions. The results show that the inlet temperature of the heat transfer fluid increases from 55 °C to 70 °C, the flow rate increases from 0.1m<sup>3</sup>/h to 0.4m<sup>3</sup>/h, and the overall heat storage time of the water tank decreases by about 50 % and 53 %, respectively. In the standard arrangement, the PCM closer to the entrance in the X-direction melts slowly, and the PCM closer to the tank wall in the <em>Z</em>-direction melts slowly. In addition, reducing the tubes' distance of X and Z-direction will prolong the heat storage time and change the melting sequence of PCM. This study provides guidance for further heat transfer of uniform phase change water tank, and provides reference for design and application of tank.</div></div>","PeriodicalId":15942,"journal":{"name":"Journal of energy storage","volume":"119 ","pages":"Article 116390"},"PeriodicalIF":8.9,"publicationDate":"2025-03-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143725135","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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