Article
Energy & Fuels
Sunnykumar Patel, Syeda Humaira Tasnim, Shohel Mahmud
Summary: This study presents a novel approach of charging PCM inside toroidal tubes in LHTES system. Numerical investigations reveal that fin orientation plays a dominant role in enhancing heat transfer. In the toroidal tube LHTES system, correctly oriented fins provide higher rate of energy storage and save melting time.
JOURNAL OF ENERGY STORAGE
(2022)
Article
Thermodynamics
Akshat Patel, Vivek Kumar Singh
Summary: This study aims to improve the energy release and storage rate of PCM heat sinks by employing a novel PCM heat sink with double-sided spiral fins. The results show that increasing the diameter and length of the fins reduces the critical temperature and time taken to reach initial conditions. The best configuration of spiral fins reduces the critical temperature and time by 7 K and 19 mins, respectively, compared to traditional pin fins.
INTERNATIONAL COMMUNICATIONS IN HEAT AND MASS TRANSFER
(2022)
Article
Energy & Fuels
Sachin Rana, Mohammad Zunaid, Rajesh Kumar
Summary: The study examines the thermal performance of a heat exchanger with multiple elliptical tubes and a phase change material. By incorporating fins on the elliptical tubes, the heat transmission is improved. The results show that adding fins reduces the melting time and enhances heat transfer efficiency.
JOURNAL OF ENERGY STORAGE
(2022)
Article
Energy & Fuels
Ashok K. Barik, Prafulla K. Swain
Summary: In this study, the melting time of a phase-change material (PCM) was estimated by incorporating different constructs of fins in a triplex-tube heat exchanger using the constructal law. The results showed that higher construct of fins led to significantly shorter melting time. The hybrid fins with fins on both the inner and outer surfaces performed the best in terms of reducing melting time. Heat transfer and fluid flow dynamics were analyzed using temperature, melt fraction, and velocity contours.
JOURNAL OF ENERGY STORAGE
(2022)
Article
Multidisciplinary Sciences
Adel Almarashi, Amira M. Hussin, M. Mirparizi, Chunwei Zhang, Hosam A. Saad
Summary: In this study, the effect of different shapes and concentrations of nanoparticles on solidification speed was investigated. The results showed that adding nanomaterials and using blade-shaped particles can significantly accelerate the freezing process.
SCIENTIFIC REPORTS
(2022)
Article
Energy & Fuels
Ahmed H. N. Al-Mudhafar, Andrzej F. Nowakowski, Franck C. G. A. Nicolleau
Summary: The study investigated the enhancement of PCM thermal performance using tee shaped fins in a shell and tube heat exchanger. Results showed that tee fins accelerated PCM melting process and reduced total melting time by 33% compared to longitudinal fins.
Article
Green & Sustainable Science & Technology
Dinghai Liu, Kai Xie, Hui Zhang, Yujie Qiang, Di Yang, Zhaoxiao Wang, Lidong Zhu, Nevzat Akkurt, Yanping Du, Meng Shen, Liqiong Zhong, Fan Yu, Qian Xu
Summary: This paper presents numerical investigations on the flow and heat transfer characteristics of a rotating paraffin-filled rectangular container in space. The results show that the distribution of solid-liquid interface, temperature, and melting time vary with different rotation angles.
Article
Green & Sustainable Science & Technology
Kun Yang, Neng Zhu, Yongzhao Li, Na Du
Summary: By adjusting the HTF inlet temperature and mass flow rate in the inner and outer tubes, the thermal storage performance of the TTHX unit can be optimized. Decreasing the HTF flow rate in the inner tube can improve the exergy efficiency of the unit.
Article
Engineering, Chemical
Banumathi Munuswamy Swami Punniakodi, Nehal Shah, Varun Kumar Rathore, Ramalingam Senthil
Summary: This study investigates the use of multiple heat transfer tubes in phase change materials for enhanced thermal storage in solar systems. The results show that placing a heat transfer tube at the bottom is the optimal configuration for faster melting of the phase change material. This design is cost-effective and straightforward.
JOURNAL OF THE TAIWAN INSTITUTE OF CHEMICAL ENGINEERS
(2022)
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
Thermodynamics
Lokesh Kalapala, Jaya Krishna Devanuri
Summary: The study examined the performance of a shell and tube latent heat storage unit with annular fins attached to the tube. It was found that horizontal orientation requires significantly more time for complete melting compared to vertical orientation, due to the suppression of convective transport in the bottom half. Horizontal orientation exhibited higher energy efficiency, while vertical orientation showed higher exergy efficiency.
APPLIED THERMAL ENGINEERING
(2021)
Article
Thermodynamics
Mohit Barthwal, Dibakar Rakshit
Summary: Thermal energy storage/sink is crucial for solar energy harnessing systems, with the challenge lying in developing a suitable system for long cyclic operation. This study analyzes the melting characteristics of PCM-based latent thermal energy storage, utilizing internal-external fins for better heat dissipation. Triangular and Y-shaped fins delay melting, with Y-shaped fins showing a larger suppression ratio.
APPLIED THERMAL ENGINEERING
(2022)
Article
Energy & Fuels
Hakan F. F. Oztop, Elanur Baki Sezgin
Summary: The use of containers with streamlined corners reduces the melting time of phase change materials (PCMs) under the same boundary conditions, serving as a passive control method to improve energy efficiency.
ENERGY SOURCES PART A-RECOVERY UTILIZATION AND ENVIRONMENTAL EFFECTS
(2023)
Article
Physics, Multidisciplinary
Mahmoud M. Selim, Y. A. Rothan, Awad Mousa, Abed Saif Alghawli
Summary: The research proposed the use of a triplex tube system with fins to manage discharge speed, and changing water properties by adding nanoparticles. The study found that freezing rate increases with increasing φ, but efficiency decreases with larger particle size; increasing diameter first raises, then decreases solidification time.
EUROPEAN PHYSICAL JOURNAL PLUS
(2022)
Article
Environmental Sciences
Purohitam Narasimha Siva Teja, Santhosh Kumar Gugulothu, Gadepalli Ravikiran Sastry, Bhasker Burra, Swapnil Sureshchandra Bhurat
Summary: The study analyzed the impact of nanoparticles on paraffin phase change material in a 2D square thermal energy storage system, showing that their addition improves the thermal characteristics. The melting rate increases with an increase in nanoparticle concentration, and sidewall heating results in a higher melting rate compared to bottom wall heating.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2022)
Article
Thermodynamics
Samiappan Dhanalakshmi, Venkatesh Chakravartula, Rajamanickam Narayanamoorthi, Ramamoorthy Kumar, Gerard Dooly, Dinesh Babu Duraibabu, Ramalingam Senthil
Summary: Solar PV performance is affected by panel temperature, and traditional temperature sensors are not effective. Fiber-optic sensors provide higher accuracy and sampling rate. This research focuses on monitoring PV panel temperature using fiber Bragg grating sensors, studying the rapid changes in panel temperature and the effects of radiation flux and inclination angle.
CASE STUDIES IN THERMAL ENGINEERING
(2022)
Article
Education & Educational Research
Harsh Sharma, Rohan Mathur, Tejas Chintala, Samiappan Dhanalakshmi, Ramalingam Senthil
Summary: Examination assessments conducted by educational institutions are crucial for determining students' understanding and achievements. This research proposes a pipeline for generating new questions from a given text corpus and classifying them into the specific cognitive domain under the Bloom's taxonomy.
EDUCATION AND INFORMATION TECHNOLOGIES
(2023)
Review
Energy & Fuels
Gowtham Vedulla, Anbazhagan Geetha, Ramalingam Senthil
Summary: In recent years, there has been a growing focus on renewable energy due to environmental concerns, rising fuel costs, and limited fossil fuel supply. Solar energy is the most appealing green energy technology and its efficient use can help achieve Sustainable Development Goal 7. Various factors, such as irradiance, latitude, and dust accumulation, impact the functioning and maintenance cost of solar PV systems. This review study presents the important findings on dust deposition and mitigation strategies to improve the performance of PV systems.
Article
Green & Sustainable Science & Technology
Saranathan Pragati, Radhakrishnan Shanthi Priya, Chandramouli Pradeepa, Ramalingam Senthil
Summary: This research examines the impact of green roofs and walls on thermal behavior and heat transfer in a warm and humid climate, highlighting the importance of greening systems in improving thermal comfort and reducing urban heat island effects. The simulation study shows that green roofs and walls significantly decrease air temperature, radiant temperature, humidity, and solar gain, leading to a 10.5% reduction in total energy consumption and a 13% reduction in district cooling demand. The findings of this study can guide urban designers and dwellers in creating green spaces and integrating green technologies in congested urban areas.
Review
Construction & Building Technology
Prashanthini Rajagopal, Radhakrishnan Shanthi Priya, Ramalingam Senthil
Summary: This review examines the development of urban heat island (UHI) and its relationship with various environmental measures, analyzing UHI research based on multiple parameters and scenarios. The study identifies key variables and tools used in measuring UHI, and highlights a research gap regarding connectivity infrastructure such as metro lines and highways. The review contributes to understanding the impact of environmental metrics on UHI and supports the achievement of sustainable development goal-11.
SUSTAINABLE CITIES AND SOCIETY
(2023)
Article
Energy & Fuels
Banumathi Munuswamy Swami Punniakodi, Ramalingam Senthil
Summary: Solar collectors integrated with phase change materials (PCM) are used to store heat energy for later use. This study investigates the use of a helical heat transfer tube (HTT) configuration to improve PCM melting by increasing the contact surface. The results show that a fully compressed HTT can significantly reduce the melting time compared to a fully expanded HTT, making it a practical design for solar collectors and low-temperature heat recovery systems.
JOURNAL OF ENERGY STORAGE
(2023)
Article
Thermodynamics
Senthil Kumar Vishnu, Ramalingam Senthil
Summary: The study investigates the performance of a finned spiral flow path solar receiver in a parabolic dish solar collector. The receiver shows improved heat transfer coefficient and higher energy efficiency at higher flow rates. Economic evaluation indicates that the receiver with a flow rate of 0.12 kg/s has the most significant economic outcomes. These findings provide valuable insights for designing efficient solar receivers for concentrated solar collectors.
APPLIED THERMAL ENGINEERING
(2023)
Editorial Material
Thermodynamics
Marimuthu Cheralathan, Chandrasekaran Selvam, Ramalingam Senthil
HEAT TRANSFER ENGINEERING
(2023)
Article
Green & Sustainable Science & Technology
Elumalai Vengadesan, Pathinettampadian Gurusamy, Ramalingam Senthil
Summary: A novel flat surface receiver with square cross-sectioned tubular fins is introduced to improve the thermal performance of a parabolic dish collector. Real-time investigation shows that with increasing water flow rate, the maximum temperature difference decreases and the time of water boiling is delayed. The receiver achieves high thermal and exergy efficiencies and has a lower cost per kWh of useful energy compared to coal power plants.
Article
Energy & Fuels
Elumalai Vengadesan, Veeman Dhinakaran, Sampath Senthil, Pandiyan Renugadevi, Ramalingam Senthil
Summary: The study focuses on enhancing the heat transfer of a solar air heater (SAH) using an absorber with phase change material (PCM). The proposed SAH with PCM-integrated absorber achieved higher air temperature and energy efficiency compared to the plain absorber. The experiments showed that at an air flow rate of 0.03 kg/s, the proposed SAH had an energy efficiency of 77.7%, which is 15.2% higher than the plain absorber.
JOURNAL OF ENERGY STORAGE
(2023)
Article
Multidisciplinary Sciences
Senthil Kumar Vishnu, Ramalingam Senthil
Summary: The solar receiver plays a vital role in concentrated solar collectors by absorbing solar radiation and converting it into heat. This study focuses on developing an efficient and cost-effective solar receiver design using fins to enhance heat transfer. Experimental results demonstrate improved thermal performance and lower initial investment for steam generation compared to other receiver designs.
Review
Engineering, Biomedical
Samiappan Dhanalakshmi, Ramesh Sai Maanasaa, Ramesh Sai Maalikaa, Ramalingam Senthil
Summary: Parkinson's disease is a worldwide neurodegenerative disorder with motor and non-motor symptoms. The use of artificial intelligence for diagnosis can overcome the challenges in detecting PD. A systematic review analyzed algorithms for detection and assessment based on various features, and provided critical analysis and recommendations to improve treatment and medication in the PD community.
BIOMEDICAL ENGINEERING LETTERS
(2023)
Review
Energy & Fuels
Abhinav Mishra, Bedaditya Barat, Shashank Balaji, Yuvraj Singh, Ramalingam Senthil
Summary: Solar energy has several advantages compared to other renewable energy sources. This review critically analyzes the cooling technologies for photovoltaic thermoelectric hybrid solar energy systems and discusses related issues, such as overheating PV-TE generators.
ENERGY SYSTEMS-OPTIMIZATION MODELING SIMULATION AND ECONOMIC ASPECTS
(2023)
Article
Environmental Sciences
Senthil Kumar Vishnu, Ramalingam Senthil
Summary: This experimental research proposes a solar receiver for the PDC with a circular flow path surrounded by PCM-filled metallic tubes. The selected PCM is a eutectic mixture of KNO3 and NaNO3. The receiver surface reached a maximum temperature of 300 degrees C, and it is expected to significantly reduce CO2 emissions.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Review
Environmental Sciences
Ramalingam Senthil, Gunasekaran Arun Vijay
Summary: This article focuses on the spray characteristics of biodiesel, analyzing its physicochemical properties, injection conditions, and injector constraints to understand the atomization features. It also discusses the supporting systems for spray diagnostics and models. The highlighted significant spray challenges and future research direction benefit the fuel and combustion community.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
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)