Article
Thermodynamics
Muhammad Shahid Shafiq, Muhammad Mahabat Khan, Muhammad Irfan
Summary: The study investigates the impact of various fin designs on the performance of a thermal energy storage unit. Different fin angles, shapes, and lengths can significantly affect the melting rate and energy storage efficiency of the phase change material. Optimal fin configurations can greatly enhance the overall performance of the system.
CASE STUDIES IN THERMAL ENGINEERING
(2021)
Review
Energy & Fuels
Baizhong Sun, Mingxi Sun, Long Gao, Deyong Che, Yimin Deng
Summary: A double-spherical PCM capsule structure with annular fins was proposed to enhance the thermal response of spherical PCM capsules. The effects of fin parameters on the thermal and melting properties were analyzed by numerical simulation. The results showed that the best fin installation position was outside the inner ball and the heat storage time could be shortened by 14.4% with an increase in fin parameters. The addition of fins changed the law of natural convection and the Nusselt number (Nu) was proportional to each fin parameter.
JOURNAL OF ENERGY STORAGE
(2023)
Article
Energy & Fuels
Fakhar ul Hasnain, Muhammad Irfan, Muhammad Mahabat Khan, Lehar Asip Khan, Hassan Farooq Ahmed
Summary: This study highlights the enhancement of PCM melting performance through the application of branched fins and nanoparticles. Different fin designs are found to significantly improve melting efficiency, while the addition of nanoparticles further reduces melting time. However, the additional nanoparticles decrease the energy storage capacity.
JOURNAL OF ENERGY STORAGE
(2021)
Article
Thermodynamics
Zhen Qin, Zheng Hua Low, Chenzhen Ji, Fei Duan
Summary: This research aims to validate the effect of the inclined angle of metal fins on PCM melting and evaluate the efficacy of angled fins in enhancing PCM melting in the LHTES system. Experimental results show that the inclined fins significantly influence the temperature evolution of solid PCM around the fins. Different inclined angles of fins have varying effects on the PCM melting time, with downward inclined fins being the most effective in reducing the melting time.
INTERNATIONAL COMMUNICATIONS IN HEAT AND MASS TRANSFER
(2022)
Article
Energy & Fuels
Babak Mohammad Olfat, Faramarz Talati
Summary: This paper investigates the effect of fins on heat transfer enhancement in latent heat thermal energy storage systems containing phase change materials (PCMs) and aims to find the reasons behind the insufficiency of fins in some cases. Through simulations under different boundary conditions and the introduction of the bypassed energy fraction criterion, conclusions were drawn regarding the performance of fins under different conditions.
JOURNAL OF ENERGY STORAGE
(2021)
Article
Thermodynamics
Yang Tian, Xianglei Liu, Qiao Xu, Qingyang Luo, Hangbin Zheng, Chao Song, Zhonghui Zhu, Ke Gao, Chunzhuo Dang, Haolei Wang, Yimin Xuan
Summary: A bionic topology optimization method is proposed to enhance thermal storage/release performances, leading to significantly reduced melting and solidification time. The similarity between the fractal dimension of optimized fins and leaf structure contributes to better synergy between flow and heat transfer. These findings provide a new approach for the design of high performance LHS devices.
APPLIED THERMAL ENGINEERING
(2021)
Article
Energy & Fuels
Fan Chen, Nan Sheng, Chunyu Zhu
Summary: This paper proposes a method for designing the inner fins of spherical phase change capsules using topology optimization techniques to improve their thermal response time and storage/exhaust efficiency. The study finds that the topology optimization fin model with minimized dissipation of thermal conductivity performs the best.
JOURNAL OF ENERGY STORAGE
(2023)
Article
Energy & Fuels
Xianglei Liu, Xinliang Qin, Yang Tian, Qingyang Luo, Haichen Yao, Jianguo Wang, Chunzhuo Dang, Qiao Xu, Shushan Lv, Yimin Xuan
Summary: Biomimetic topology-optimized annular fins were proposed to accelerate heat storage performance in Latent heat thermal energy storage (LHTES) technology. The optimized fins reduced melting time by 45.9% compared to traditional fins, outperforming pitch-varying fins and diameter-varying fins by 18.4% and 23.5% respectively. Furthermore, biomimetic fins greatly improved temperature uniformity in phase change materials (PCMs) with a reduction of average temperature difference by 75.3%. The fractal dimension of optimized fins resembled leaf vein structures, showcasing the effectiveness of biomimetics in LHTES.
Article
Energy & Fuels
Zhen Qin, Chenzhen Ji, Zheng Hua Low, Wei Tong, Chenlong Wu, Fei Duan
Summary: Waste heat recovery from industrial exhaust gases is crucial for reducing fuel consumption and improving energy efficiency. This study focuses on the effect of PCM container geometry on melting behavior and heat storage performance. The results show that a protruding-shaped container with high convection strength significantly improves PCM melting and thermal storage rates.
Article
Energy & Fuels
Mostafa Masoumpour-Samakoush, Mehdi Miansari, Seyed Soheil Mousavi Ajarostaghi, Muslum Arici
Summary: This study investigates the melting process of phase change material in energy storage using numerical simulation. The use of innovative fins enhances the melting rate. The results show that the proposed fin geometry significantly improves the melting rate, and the melting time can be further reduced by adjusting the height of triangular fins and the temperature of the hot wall. Among the evaluated phase change materials, paraffin wax 811 exhibits better thermal performance.
JOURNAL OF ENERGY STORAGE
(2022)
Article
Thermodynamics
Reza Daneshazarian, Sylvie Antoun, Seth B. Dworkin
Summary: The use of nano phase change materials in thermal energy storage shows potential, but challenges remain due to poor performance and limited understanding of heat transfer mechanisms. Adding nanoparticles can improve melting rate up to a critical concentration, but higher loadings may lead to reduced heat transfer efficiency.
INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER
(2021)
Article
Green & Sustainable Science & Technology
Joseph Rendall, Ahmed Elatar, Kashif Nawaz, Jian Sun
Summary: This review examines the latest developments in integrating phase change materials (PCMs) for thermal energy storage (TES) in domestic heat pump water heaters (HPWHs). The review looks at component design optimization and control optimization of HPWHs and TES to improve their thermal capacity and efficiency. The review categorizes the state-of-the-art developments based on the stage of PCM deployment in HPWHs. Food-grade PCMs are found to be the best option for integration in domestic HPWHs due to their non-toxic nature, high cyclability, and ability to overcome thermal conductivity limitations. The review also highlights the need for standardized performance metrics for evaluating the system and the potential for further research and development in component design and control optimization for commercially viable PCM-integrated HPWH systems.
RENEWABLE & SUSTAINABLE ENERGY REVIEWS
(2023)
Article
Green & Sustainable Science & Technology
Ali Tavakoli, Mahmood Farzaneh-Gord, Amir Ebrahimi-Moghadam
Summary: This study evaluates the thermo-hydraulic performance of utilizing sinusoidal internal fins and phase change material (PCM) in LHTES systems. A numerical framework is developed to analyze the geometrical parameters of the fins and investigate different heat transfer and thermodynamic characteristics. The results show that the highest growth of liquid fraction and the lowest entropy generation are achieved in case 4, with H/L = 0.125 and a thickness of 3mm, compared to a case with simple straight fins.
Review
Energy & Fuels
Xueliang Zhu, Yan Li, Qunzhi Zhu
Summary: In the process of industrial waste heat recovery, phase change heat storage technology is popular due to its high heat storage density and constant temperature absorption/release process. This paper summarizes the development of new fins in the industry and the optimization results of size, shape, and arrangement. The research shows that multi-branch structure, non-uniform fin array, and targeted fin arrangement can enhance heat transfer.
JOURNAL OF ENERGY STORAGE
(2022)
Article
Thermodynamics
Jiangwei Liu, Pengfei Hu, Zunpeng Liu, Changda Nie
Summary: This study examined the effect of T-shaped fins on the melting performance of phase change materials (PCMs) compared to traditional longitudinal plate fins. The results showed that T-shaped fins can significantly enhance the melting process, shortening the melting time and improving the melting uniformity. Specifically, horizontally and vertically arranged T-shaped fins save 34.5% melting time compared to longitudinal plate fins. Additionally, optimizing the length ratio of the vertical and horizontal portions of the T-shaped fins further improves the melting performance, with a length ratio of 1.33 saving 47.1% melting time compared to longitudinal plate fins.
INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER
(2023)
Article
Environmental Sciences
Fujen Wang, Indra Permana, Kwowhei Lee, Dibakar Rakshit, Parisya Premiera Rosulindo
Summary: This study examines a biotech cleanroom through field measurements and numerical simulations. The field measurement results meet the cleanroom standards, and the simulations reveal the effectiveness of improvement strategies.
Article
Energy & Fuels
Tewodros Belay Ashagre, Dibakar Rakshit
Summary: This study investigated the thermal energy conservation systems using microencapsulated phase change material (MPCM) slurry as a working fluid through numerical analysis. The results showed that particle concentration, Reynolds number, and particle diameter have a significant effect on the heat transfer performance of MPCM slurry, with 15% volume fraction showing the highest average heat transfer coefficient.
JOURNAL OF ENERGY STORAGE
(2022)
Article
Construction & Building Technology
Rahul Verma, Dibakar Rakshit
Summary: This article evaluates the effect of passive methods on controlling heat gain in buildings. The study shows that passive methods can save 6-29% of HVAC energy consumption and improve energy efficiency.
ENERGY AND BUILDINGS
(2023)
Article
Thermodynamics
Ashutosh Kumar Singh, Kuldeep Singh, Dushyant Singh, Niranjan Sahoo
Summary: Based on experimental and numerical studies, an effective injection configuration for film cooling applications on sinusoidal corrugated surfaces is proposed. The experimental study shows that the (L-50-L-75) injection case has the best performance.
EXPERIMENTAL HEAT TRANSFER
(2023)
Article
Green & Sustainable Science & Technology
Plaban Bora, Jyotishmanyu Kakoti, Pranaynil Saikia, Nayan Jyoti Talukdar, Mayur Mausoom Phukan, Dibakar Rakshit
Summary: This study validates the sustainability of Waste Cooking Oil (WCO) microemulsion biofuel in Compression Ignition (CI) engines by evaluating life cycle performances, emission characteristics, and cogeneration potential. The results show that the environmental impact of fossil resource exploitation can be reduced by up to 34% with WCO microemulsion biofuel-petrodiesel blends compared to petrodiesel. WMBDs also exhibit decreased CO, CO2, and NOx emissions and higher cylinder pressure and net heat release rate compared to petrodiesel.
JOURNAL OF RENEWABLE AND SUSTAINABLE ENERGY
(2023)
Article
Construction & Building Technology
Indra Permana, Fujen Wang, Alya Penta Agharid, Dibakar Rakshit, Jianhui Luo
Summary: This study investigates the energy performance in hotel buildings using a comprehensive approach involving data collection, field measurement, regression analysis, and building energy modeling. The study finds that ambient temperature and occupancy rate are key factors in energy consumption. It also evaluates the energy-saving potential and concludes that energy modeling approaches can be useful tools for identifying and implementing energy-saving strategies.
Article
Thermodynamics
Shubham Jain, K. Ravi Kumar, Dibakar Rakshit, B. Premachandran, K. S. Reddy
Summary: In this study, a comparative assessment of different storage configurations was conducted using the enthalpy porosity method. It was found that the horizontal cylindrical cascade storage required 39.04%, 15.78%, 24.70%, and 5.9% less charging time compared to the other storage configurations. The frustum shell in vertical cascade storages increased the energy accumulation cycle time by 25% compared to the cylindrical shell.
APPLIED THERMAL ENGINEERING
(2023)
Article
Thermodynamics
Rahul Kumar Sharma, Ashish Kumar, Dibakar Rakshit
Summary: The study explores the use of phase change materials (PCM) as a retrofit with Heating Ventilation and Air-conditioning systems (HVAC) to reduce energy consumption and improve air quality. By incorporating PCM with specific thickness and fin configurations, significant energy savings can be achieved in comparison to standard HVAC systems utilizing R134a. This research provides policymakers with energy-efficient and sustainable solutions for HVAC systems to combat climate change.
APPLIED THERMAL ENGINEERING
(2024)
Article
Thermodynamics
Dushyant Singh, Chunkyraj Khangembam, Kuldeep Singh, Ketan Atulkumar Ganatra
Summary: This study focuses on the investigation of air-water mist jet impingement heat transfer on a heated flat plate through experimental and numerical methods. The results show that increasing the mist loading fraction and Reynolds number can enhance the heat transfer rate, while increasing the plate-to-nozzle distance decreases the heat transfer rate. Significant increases in the Nusselt number are also observed. Correlation models are proposed to explain these findings.
HEAT AND MASS TRANSFER
(2023)
Article
Green & Sustainable Science & Technology
Abhayjeet Kumar Dubey, Jingyi Sun, Tushar Choudhary, Madhusmita Dash, Dibakar Rakshit, M. Zahid Ansari, Seeram Ramakrishna, Yong Liu, Himansu Sekhar Nanda
Summary: Renewable energy technologies are crucial to address the energy imbalance caused by increasing energy consumption and diminishing fossil fuel supplies. Phase change energy storage has received attention for its potential to mitigate energy shortage issues. However, the thermal performance of phase change materials (PCMs) is limited by their poor thermal conductivity. Various strategies, including encapsulation, have been explored to improve the thermal efficiency of PCMs.
RENEWABLE & SUSTAINABLE ENERGY REVIEWS
(2023)
Article
Thermodynamics
Alok K. Ray, Dibakar Rakshit, K. Ravi Kumar, Hal Gurgenci
Summary: The low thermal conductivity of phase change materials limits the heat transfer rate and application of latent heat storage systems. This numerical study examines the impact of two passive heat transfer enhancement techniques on the thermal performance of a latent heat storage system. The results show that the orientation and position of the heat transfer fluid tube have significant effects on the charging duration, while the discharging duration remains unchanged. The combined effect of orientation and eccentricity reduces the charging duration, but increases the discharging duration compared to the concentric domain.
INTERNATIONAL JOURNAL OF THERMAL SCIENCES
(2024)
Article
Thermodynamics
Tewodros Belay Ashagre, Dibakar Rakshit
Summary: This study investigates the combined effect of surface enhancement techniques and microencapsulated phase change material (MPCM) slurry in a double-pipe heat exchanger. The groove-cut models of the heat transfer tube demonstrate enhanced flow mixing and heat transfer performance for MPCM slurry. The study concludes that groove-cut tube models outperform plain tube models in terms of thermohydraulic performance.
THERMAL SCIENCE AND ENGINEERING PROGRESS
(2023)
Article
Energy & Fuels
Mohit Barthwal, Dibakar Rakshit
Summary: This study presents a novel design for a spectral beam splitting-powered compound parabolic collector-based PVT system. By maximizing the splitting effect, the system achieves a higher heat transfer fluid temperature than the PV cell temperature. Experimental results show that the design can achieve a high temperature rise and energy conversion efficiency.
Article
Thermodynamics
Alok K. Ray, Sumer Singh, Dibakar Rakshit, Udayraj
Summary: This study numerically investigates the cooling performance of portable cold storage boxes using phase change material for transportation of vaccines under different ambient conditions. The results show that the cylindrical configuration of the box has better cooling efficiency and duration compared to the cuboid configuration, especially at high ambient temperatures.
THERMAL SCIENCE AND ENGINEERING PROGRESS
(2022)
Article
Energy & Fuels
Abhishek Agrawal, Ashish Kumar, Dibakar Rakshit
Summary: This study introduces a novel analytical solution for the phase change problem in a shell and tube arrangement of LHTES system, capturing the transient melting behavior of PCM using time-dependent boundary conditions and moving interface energy equation. The mathematical model developed can be proposed as an effective tool for assessing the thermal performance of shell and tube LHTES systems.
Article
Energy & Fuels
M. Ahmadifar, K. Benfriha, M. Shirinbayan, A. Aoussat, J. Fitoussi
Summary: This study investigates the impact of innovative polymer-metal interface treatment on the reliability and robustness of hydrogen storage technology. A scaled-down demonstrator was fabricated using rotomolding to examine the mechanical characteristics, damage, and fatigue behaviors of the metal-polymer interface. The findings reveal that sandblasting treatment enhances the resilience of the interface.
JOURNAL OF ENERGY STORAGE
(2024)
Article
Energy & Fuels
A. A. Kandil, Mohamed M. Awad, Gamal I. Sultan, Mohamed S. Salem
Summary: This paper proposes a novel hybrid system that splits solar radiation into visible and thermal components using a beam splitter and integrates a phase change material (PCM) packed bed with a PV cell. Experimental and theoretical analyses show that the hybrid configuration significantly increases the net power output of the system compared to using a PV system alone.
JOURNAL OF ENERGY STORAGE
(2024)
Article
Energy & Fuels
Jinchao Li, Ya Xiao, Shiqiang Lu
Summary: The combination of energy storage and microgrids is crucial in addressing the uncertainty of distributed wind and solar resources. This article proposes a multi microgrid interaction system with electric-hydrogen hybrid energy storage, which optimizes the system's capacity configuration to improve its economy and reliability.
JOURNAL OF ENERGY STORAGE
(2024)
Review
Energy & Fuels
Shri Hari S. Pai, Sarvesh Kumar Pandey, E. James Jebaseelan Samuel, Jin Uk Jang, Arpan Kumar Nayak, HyukSu Han
Summary: This review discusses the structure-property relationship of nickel oxide nanostructures as excellent supercapacitive materials and provides an overview of various preparation methods and strategies to enhance specific capacitance. It comprehensively analyzes the current status, challenges, and future prospects of nickel oxide electrode materials for energy storage devices.
JOURNAL OF ENERGY STORAGE
(2024)
Article
Energy & Fuels
Xiaowei Wu, Xin Dong, Ziqin Liu, Xinyi Wang, Pu Hu, Chaoqun Shang
Summary: The growth of Li dendrites in lithium metal batteries is effectively controlled by constructing a three-dimensional framework on the surface of Li using Ni(OH)2 nanosheets modified Prussian blue tubes. This method provides a homogenous Li+ flux and sufficient space to accommodate the volume change of Li, resulting in suppressed dendrite growth and improved cycling performance.
JOURNAL OF ENERGY STORAGE
(2024)
Article
Energy & Fuels
Yan-Jie Liao, Yi-Yen Hsieh, Yi-Chun Yang, Hsing-Yu Tuan
Summary: We present two-dimensional AgInP2Se6 (AIPSe) bimetallic phosphorus trichalcogenides nanosheets as anodes for advanced alkali metal ion batteries (AMIBs). The introduction of bimetallic components enhances the electronic/ionic conductivity and optimizes the redox dynamics, resulting in superior electrochemical performance. The AIPSe@G anodes achieve high specific capacity, excellent cycle stability, and rate capability in both lithium-ion (LIBs) and potassium-ion batteries (PIBs). The comprehensive full cell tests further demonstrate the stability of AIPSe@G anodes under diverse current regimes.
JOURNAL OF ENERGY STORAGE
(2024)
Article
Energy & Fuels
Chenghu Wu, Weiwei Li, Tong Qian, Xuehua Xie, Jian Wang, Wenhu Tang, Xianfu Gong
Summary: In the context of increasing global environmental pollution and constant increase of carbon emission, hydrogen production from surplus renewable energy and hydrogen transportation using existing natural gas pipelines are effective means to mitigate renewable energy fluctuation, build a decarbonized gas network, and achieve the goal of carbon peak and carbon neutral in China. This paper proposes a quasi-steady-state modeling method of a hydrogen blended integrated electricity-gas system (HBIEGS) considering gas linepack and a sequential second-order cone programming (S-SOCP) method to solve the developed model. The results show that the proposed method improves computational efficiency by 91% compared with a general nonlinear solver.
JOURNAL OF ENERGY STORAGE
(2024)
Article
Energy & Fuels
Jingcen Zhang, Zhi Guo, Yazheng Zhu, Haifeng Zhang, Mengjie Yan, Dong Liu, Junjie Hao
Summary: In this study, a new type of sensible heat storage material was prepared using low-cost steel slag as the main component, providing an effective way of recycling steel slag. By analyzing the effects of different pretreatment steel slag content and sintering temperatures on the organization and properties of heat storage materials, the study found that the steel slag heat storage material exhibited excellent performance and stability under certain conditions.
JOURNAL OF ENERGY STORAGE
(2024)
Article
Energy & Fuels
D. Carrillo-Pena, G. Pelaz, R. Mateos, A. Escapa
Summary: Methanogenic biocathodes have the potential to convert CO2 and electricity into methane, making them suitable for long-term electrical energy storage. They can also function as biological supercapacitors for short-term energy storage, although this aspect has received less attention. In this study, carbon-felt-based MB modified with graphene oxide were investigated for their electrical charge storage capabilities. Results showed that the potential of the electrode during discharging plays a significant role in determining the charge storage capacity.
JOURNAL OF ENERGY STORAGE
(2024)
Article
Energy & Fuels
Marco Gambini, Federica Guarnaccia, Michele Manno, Michela Vellini
Summary: This paper presents an analytical assessment of the energy-power relationship for different material-based hydrogen storage systems. It explores the impact of power demand on the amount of discharged hydrogen and the utilization factor. The results show that metal hydrides have higher specific power compared to liquid organic hydrogen carriers. The study provides insights into the discharge duration and energy utilization of hydrogen storage systems.
JOURNAL OF ENERGY STORAGE
(2024)
Article
Energy & Fuels
Shujahadeen B. Aziz, Rebar T. Abdulwahid, Pshko A. Mohammed, Srood O. Rashid, Ari A. Abdalrahman, Wrya O. Karim, Bandar A. Al-Asbahi, Abdullah A. A. Ahmed, M. F. Z. Kadir
Summary: This study investigates a novel biodegradable green polymer electrolyte for energy storage. Results show that the sample with added glycerol has the highest conductivity. The primary conduction species in the electrolyte are ions. Testing confirms that the sample can withstand a voltage suitable for practical applications.
JOURNAL OF ENERGY STORAGE
(2024)
Article
Energy & Fuels
Binit Kumar, Abhishek Awasthi, C. Suresh, Yongseok Jeon
Summary: This study presents a new numerical model for effective thermal conductivity that overcomes the limitations of previous models. The model can be applied to various shapes and phase change materials, using the same constants. By incorporating the natural convection effect, the model accurately calculates the thermal conductivity. The results of the study demonstrate the effectiveness of the model for different shapes and a wide range of alkanes.
JOURNAL OF ENERGY STORAGE
(2024)
Article
Energy & Fuels
Supak Pattaweepaiboon, Wisit Hirunpinyopas, Pawin Iamprasertkun, Katechanok Pimphor, Supacharee Roddecha, Dirayanti Dirayanti, Adisak Boonchun, Weekit Sirisaksoontorn
Summary: In this study, electrode powder from spent zinc-carbon/alkaline batteries was upcycled into LiMn2O4 cathode and carbon anode for rechargeable lithium-ion batteries. The results show that the upcycled LiMn2O4 exhibits improved electrochemical performance, with higher discharge capacity compared to pristine LiMn2O4. Additionally, the recovered carbon materials show superior cycling performance. This research provides great potential for upcycling waste battery electrodes to high-value cathode and anode materials for lithium-ion battery applications.
JOURNAL OF ENERGY STORAGE
(2024)
Article
Energy & Fuels
Pan Yang, H. D. Yang, X. B. Meng, C. R. Song, T. L. He, J. Y. Cai, Y. Y. Xie, K. K. Xu
Summary: This paper introduces a novel multi-task learning data-driven model called GBLS Booster for accurately assessing the state of health (SOH) and remaining useful life (RUL) of lithium batteries. The model combines the strengths of GBLS and the CNN-Transformers algorithm-based Booster, and the Tree-structured Parzen Estimator (TPE) algorithm is used for optimization. The study devises 10 healthy indicators (HIs) derived from readily available sensor data to capture variations in battery SOH. The random forest method (RF) is employed for feature refinement and data dimension reduction, while the complete empirical mode decomposition (CEEMDAN) method and the Pearson correlation coefficient are used for noise reduction and data point elimination in RUL prediction. The proposed model demonstrates exceptional accuracy, robustness, and generalization capabilities.
JOURNAL OF ENERGY STORAGE
(2024)
Article
Energy & Fuels
M. Arrinda, M. Oyarbide, L. Lizaso, U. Osa, H. Macicior, H. J. Grande
Summary: This paper proposes a robust aging model generation methodology for lithium-ion batteries with any kind of lab-level aging data availability. The methodology involves four phases and ensures the robustness of the aging model through a verification process.
JOURNAL OF ENERGY STORAGE
(2024)
