Article
Green & Sustainable Science & Technology
Antoine Rogeau, Julien Vieubled, Matthieu de Coatpont, Pedro Affonso Nobrega, Guillaume Erbs, Robin Girard
Summary: The demand for hydrogen is expected to increase in the future, and offshore wind is a feasible option for generating hydrogen. A comprehensive study on cost modeling and geospatial analysis reveals the enormous potential of green hydrogen production in European seas. Offshore electrolysis is becoming more relevant over time, and by 2050, onshore electrolysis is only relevant for nearshore and shallow waters.
RENEWABLE & SUSTAINABLE ENERGY REVIEWS
(2023)
Article
Chemistry, Physical
Ali Kakavand, Saeed Sayadi, George Tsatsaronis, Ali Behbahaninia
Summary: This paper presents a comprehensive assessment of potential green hydrogen and ammonia production plants in different locations in Iran with strong wind and solar resources. The study involves selecting suitable sites, modeling hydrogen production facilities, synthesizing ammonia as a hydrogen carrier, addressing water scarcity challenges, and creating a detailed piping model for transportation. Overall, the paper is rated 8 out of 10 for its importance.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2023)
Article
Environmental Sciences
A. Martinez, G. Iglesias
Summary: This work presents a methodology to assess and compare the potential of offshore wind energy development zones. A case study in North Spain is used to illustrate the methodology. Factors such as water depths, energy production, working hours, maintenance windows, and distances to ports are considered. The methodology provides valuable insights into each offshore wind development site, contributing to informed decision-making.
SCIENCE OF THE TOTAL ENVIRONMENT
(2024)
Article
Chemistry, Physical
Fatih Sorgulu, Ibrahim Dincer
Summary: In this study, a comprehensive thermodynamic analysis and techno-economic assessment were conducted on renewable hydrogen production and its blending with natural gas in existing pipelines. Solar and wind energy-based on-grid and off-grid power systems were designed, compared, and evaluated in terms of energy, exergy, and cost. The results showed that the off-grid system had higher net present costs, energy efficiency, and exergy efficiency compared to the on-grid system.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2022)
Article
Energy & Fuels
Tanvir Hasan, Kianoush Emami, Rakibuzzaman Shah, N. M. S. Hassan, Vitali Belokoskov, Max Ly
Summary: This paper presents a techno-economic assessment of designing a green hydrogen-based microgrid for a remote island in North-east Australia. The optimal sizing of microgrid components using green hydrogen technology is determined, and cost-effective scenarios for green hydrogen production, transportation, and electricity generation are demonstrated. Simulation results show the potential for lower-cost electricity and reduced CO2 emissions, and sensitivity analysis suggests the possibility of further reducing the size of solar PV and wind used for green hydrogen production.
Article
Thermodynamics
Abdulla Al Wahedi, Yusuf Bicer
Summary: This study conducts a techno-economic assessment for a novel stand-alone renewables-based charging station and determines the optimal configuration using modeling and simulating. The results show that a combination of a 250 kW wind turbine, 450 kWp CPV/T system, 500 kW electrolyzer, etc., is the optimal stand-alone configuration.
Article
Energy & Fuels
Tiago R. Lucas, Ana F. Ferreira, R. B. Santos Rereira, Marco Alves
Summary: Green hydrogen production using wind energy as the electricity source has significant implications for energy transition and economy decarbonization. This study investigates the feasibility of hydrogen production from the WindFloat Atlantic offshore wind farm in Portugal. Results suggest that combining oxygen sales and allowing for production during both nights and afternoons can make the project more economically viable. Furthermore, the ratio between the hydrogen plant power and wind farm capacity has a notable impact on the cost of hydrogen production, with a minimum cost observed at a ratio of approximately 30%.
Article
Chemistry, Physical
Sepanta Dokhani, Mohsen Assadi, Bruno G. Pollet
Summary: Population growth and industrial expansion have led to increased energy demand and fossil fuel use, resulting in greenhouse gas emissions and air pollution. Countries are seeking alternatives to fossil fuels, and hydrogen is a promising option for electricity generation. This study examines the production of hydrogen from seawater using a proton exchange membrane electrolyser and explores different energy sources for cost-effective power generation.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2023)
Article
Green & Sustainable Science & Technology
Siamak Hoseinzadeh, Davide Astiaso Garcia
Summary: This research focuses on the city of Catania in Sicily, Italy, and uses HOMER software to simulate the use of photovoltaic panels, wind turbines, and fuel cells. The results indicate that photovoltaic panels provide the majority of energy and have higher efficiency compared to wind turbines and fuel cells.
SUSTAINABLE ENERGY TECHNOLOGIES AND ASSESSMENTS
(2022)
Article
Thermodynamics
Ashleigh Henry, Daniel McStay, David Rooney, Peter Robertson, Aoife Foley
Summary: The intermittent nature of renewable energy sources requires energy storage to meet grid demand and balancing requirements. Green hydrogen is a chemical energy carrier that can store large amounts of energy for long periods and be used flexibly. This study examines the production of hydrogen from wind using desalination and electrolysis units, comparing proton exchange membrane and alkaline electrolyser units. The analysis considers the intermittency of wind and compares it with grid-bought electricity. A model is developed to determine the selling price required for profitability over 10 years. Two scenarios are considered: using energy from the grid for hydrogen production and owning a wind turbine with capital expenditure. The study finds that the price of hydrogen production from wind is comparable to natural gas-derived hydrogen at a larger scale, with cheaper production from the alkaline electrolyser.
ENERGY CONVERSION AND MANAGEMENT
(2023)
Article
Chemistry, Physical
El Manaa Barhoumi, Mohamed Salah Salhi, Paul C. Okonkwo, Ikram Ben Belgacem, Slah Farhani, Manaf Zghaibeh, Faouzi Bacha
Summary: Clean energy resources will play a bigger role in improving sustainability and achieving durable development. Efficient technologies in energy production, storage, and usage can reduce gas emissions and enhance the global economy. Converting electrical energy generated from wind parks into green hydrogen offers an exciting solution for advancing the development of green hydrogen production and the clean transportation sector.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2023)
Article
Chemistry, Physical
Cian Moran, Eoghan Moylan, Jack Reardon, Tubagus Aryandi Gunawan, Paul Deane, Sajjad Yousefian, Rory F. D. Monaghan
Summary: The urgency to address climate change has sparked great interest in hydrogen as a clean energy carrier. This paper addresses the lack of focus on hydrogen production in previous analysis by developing a flexible techno-economic analysis (TEA) tool to evaluate potential future scenarios for hydrogen production, storage, and distribution. The tool utilizes a year's worth of hourly data on renewables availability, wholesale electricity market prices, hydrogen demand, and other user-defined inputs to optimize electrolyser capacity and minimize costs. Case studies conducted on the island of Ireland indicate the importance of cost-effective storage for flexible hydrogen production to reduce electricity costs while meeting demand consistently.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2023)
Article
Energy & Fuels
Omar Assowe Dabar, Mohamed Osman Awaleh, Moussa Mohamed Waberi, Abdi-Basid Ibrahim Adan
Summary: The study evaluates the potential of wind energy for electricity and green hydrogen production in the Republic of Djibouti for the first time, showing promising prospects with competitive production costs. Various analysis methods, including sensitivity analysis and Monte Carlo simulation, were employed in the study.
Article
Thermodynamics
Joao Carvalho, Anabela Nogueira, Sergio Castro-Silva, Claudio Rocha, Luis M. Madeira
Summary: Olive oil production leads to environmental damage due to the spreading of pollutant effluents. To solve this problem, the steam reforming (OMWWSR) reaction was studied. Various parameters and reactor configurations were evaluated, with the autothermal reactor (ATR) and sorption-enhanced reactor (SER) showing the best results in terms of H2 production and energy consumption. Economic analysis indicated that the ATR configuration achieved a net present value (NPV) range of 7.2-9.2 Meuro and payback times (PB) of 3-2 years, while the SER configuration had an NPV range of 4.7-12.2 Meuro and PB of 5-2 years.
Article
Thermodynamics
David Huckebrink, Valentin Bertsch
Summary: Decarbonising the residential heating sector through electrification can provide additional flexibility to the electricity sector by optimizing scheduling and utilizing seasonal energy storage. A combination of solar PV, heat pumps, electrolysers, and fuel cells proves to be more cost-efficient than refurbishments.
Article
Construction & Building Technology
Jayvant Choudhary, Brind Kumar, Ankit Gupta
Summary: The nature and quantity of filler have a significant impact on the ageing susceptibility of asphalt mixes, as evidenced by changes in TSR, CL, MQ, and MS. For asphalt mixes corresponding to their ITS values, the amount of filler appears to be the key factor influencing their ageing susceptibility. The ageing susceptibility of asphalt concrete mixes is greatly influenced by their apparent film thicknesses.
INTERNATIONAL JOURNAL OF PAVEMENT ENGINEERING
(2022)
Article
Water Resources
Nikhil Agrawal, Thomas Patrick, Matthew Davis, Md Ahiduzzaman, Amit Kumar
Summary: This study analyzes water use in multiple provinces and industries in Canada using Sankey diagrams and disaggregated data, finding that the hydro power sector consumes the most water, with oil sands surface mining in Alberta as the largest water consumer, and Alberta also having the largest per capita water consumption.
CANADIAN WATER RESOURCES JOURNAL
(2022)
Article
Mathematics, Interdisciplinary Applications
Anwar Zeb, Sunil Kumar, Tareq Saeed
Summary: The social habit of smoking has had a social impact worldwide, leading to various diseases and the spread of infectious diseases such as COVID-19. This study presents a fractional-order smoking model and validates the theoretical results through numerical simulations.
FRACTALS-COMPLEX GEOMETRY PATTERNS AND SCALING IN NATURE AND SOCIETY
(2022)
Article
Thermodynamics
Sunil Kumar, Surath Ghosh, Shaher Momani, S. Hadid
Summary: The population model plays an important role in biology for interpreting the spreading rate of viruses and parasites, as well as identifying fragile species. This study proposed a new YAC fractional operator with a non-singular kernel to solve nonlinear partial differential equations in biological population models. The solutions were expressed in terms of Mittag-Leffler functions and compared with exact solutions, with three examples provided to demonstrate accuracy and efficiency.
INTERNATIONAL JOURNAL OF NUMERICAL METHODS FOR HEAT & FLUID FLOW
(2022)
Article
Thermodynamics
Sunil Kumar, R. P. Chauhan, Shaher Momani, Samir Hadid
Summary: This paper investigates the complex behavior of a dynamical system using fractional and fractal-fractional operators, showcasing the evolution of the systems through numerical solutions and proposing methods for chaos control and system synchronization.
INTERNATIONAL JOURNAL OF NUMERICAL METHODS FOR HEAT & FLUID FLOW
(2022)
Article
Engineering, Environmental
Shweta Sharma, Gaurav Sharma, Amit Kumar, Tahani Saad AlGarni, Mu Naushad, Zeid A. ALOthman, Florian J. Stadler
Summary: This study synthesized a novel polysaccharide-based hydrogel with excellent swelling properties and adsorption capacity for dyes, showing its potential as an efficient adsorbent for removing dyes from aqueous solutions.
JOURNAL OF HAZARDOUS MATERIALS
(2022)
Article
Mathematics, Applied
Sunil Kumar, Ram P. Chauhan, Mohamed S. Osman, S. A. Mohiuddine
Summary: The main aim of this work is to numerically investigate a mathematical model of the HIV/AIDS disease with awareness effect. The study extends the integer-order model to fractional order using the generalized Caputo fractional derivative. A fixed-point approach is utilized to prove the existence and uniqueness of the model. The fractional-order HIV/AIDS transmission model is then solved using a new numerical technique based on the Adams-Bashforth predictor-corrector method, and the results are illustrated through graphs.
MATHEMATICAL METHODS IN THE APPLIED SCIENCES
(2023)
Article
Engineering, Multidisciplinary
Palak Saxena, Vijay Kumar, Mangey Ram
Summary: In this study, an integrated technique based on CRITIC and TOPSIS methods was developed to select the optimal SRGM. The proposed approach was illustrated with two real-time failure datasets and found to effectively solve the ranking problem of SRGMs.
QUALITY AND RELIABILITY ENGINEERING INTERNATIONAL
(2022)
Article
Genetics & Heredity
Sheikh Firdous Ahmad, Akansha Singh, Snehasmita Panda, Waseem Akram Malla, Amit Kumar, Triveni Dutt
Summary: This study analyzed the genome-wide copy number variations (CNVs) in Vrindavani cattle and found CNVRs associated with different production and reproduction traits. Important genes overlapping with CNVRs were identified, and the CNVRs were also found to overlap with important QTLs affecting milk yield, composition, reproduction, and immune function traits. The study provides insights into the understanding of CNVs in Vrindavani cattle and their association with important traits.
Article
Biotechnology & Applied Microbiology
Harish K. P. Kumar, Amit Kumar, Shikha Saxena, Arnav Mehrotra, Sheikh Firdous Ahmad, Basavaraj Sajjanar, Sudhir Srivastava, Waseem Akram Malla, Anuj Chauhan, Pronab Dhar, Bishnu Prasad Mishra, Triveni Dutt, Raj Kumar Singh
Summary: This study aimed to compare the immune response between indigenous Ghurrah and exotic Landrace pigs in response to CSF virus infection. RNA-sequencing analysis showed that MDMs of Ghurrah pigs exhibited a stronger immune regulation with more significantly differentially expressed genes (DEGs) compared to Landrace pigs. The principal regulators of inflammation were differentially regulated in the two pig breeds, with upregulation in Landrace and downregulation in Ghurrah.
Article
Green & Sustainable Science & Technology
Shristi Kharola, Mangey Ram, Nupur Goyal, Sachin Kumar Mangla, O. P. Nautiyal, Anita Rawat, Yigit Kazancoglu, Durgesh Pant
Summary: This research aims to identify the barriers to organic waste management solutions from an actor's perspective and explore their causal relationships to overcome the organic waste management problem from a system perspective. By discovering and evaluating the detailed knowledge of barriers leading to organic waste, it provides structural support to managers.
JOURNAL OF CLEANER PRODUCTION
(2022)
Article
Mathematics, Applied
Krishna Pada Das, Kulbhushan Agnihotri, Harpreet Kaur, Sunil Kumar
Summary: In this paper, a mathematical model of a tri-trophic food chain is suggested and examined, considering the Allee effect in prey population and omnivory behavior of the top predator. The study explores the dynamical behavior of the system and finds conditions for local stability of the nonzero equilibrium point. It is also established that the omnivory and Allee parameters help to restrain the chaotic dynamics.
INTERNATIONAL JOURNAL OF DYNAMICAL SYSTEMS AND DIFFERENTIAL EQUATIONS
(2022)
Review
Chemistry, Multidisciplinary
Pooja Dhiman, Dipanshi Goyal, Garima Rana, Amit Kumar, Gaurav Sharma, Linxin, Gagan Kumar
Summary: New single-atom catalysts, particularly single-atom carbon-based nano-photocatalysts, show promise for environmental remediation due to their ultra-high efficiency, environmental compatibility, structural/chemical stability, and effective usage of active metal centres. These catalysts have sparked interest among researchers for their outstanding structure and features, such as enormous activity, selectivity, maximal atom usage, and improved intrinsic catalytic activity. Carbon and carbon-based nanomaterials provide an excellent substrate for stabilizing single-atom catalysts, thanks to their low-cost production, excellent conductivity, high surface area, functionality, and tunable properties. However, there is limited work on utilizing carbon supported single-atom catalysts for the high-performance removal/degradation of a broad range of noxious organic and inorganic contaminants from water.
JOURNAL OF NANOSTRUCTURE IN CHEMISTRY
(2022)
Article
Computer Science, Theory & Methods
Anupam Gupta, Amit Kumar, Debmalya Panigrahi
Summary: This article considers two generalizations of the classical weighted paging problem that incorporate the notion of delayed service of page requests. The authors propose O(log k log n)-competitive algorithms for the PageTW and PageD problems, significantly improving on previous bounds. They also study the offline variants of these problems and provide approximation algorithms and APX-hardness proofs.
SIAM JOURNAL ON COMPUTING
(2022)
Article
Mathematics, Applied
Sara S. Alzaid, Pawan Kumar Shaw, Sunil Kumar
Summary: This paper investigates the initial value problem of fractional differential equations and proposes two numerical schemes. Through comparative analysis, it is found that fractional differential equations are more effective in modeling, and the convergence and accuracy of the proposed schemes are proven.
Article
Energy & Fuels
Shitong Fang, Houfan Du, Tao Yan, Keyu Chen, Zhiyuan Li, Xiaoqing Ma, Zhihui Lai, Shengxi Zhou
Summary: This paper proposes a new type of nonlinear VIV energy harvester (ANVEH) that compensates for the decrease in peak energy output at low wind speeds by introducing an auxiliary structure. Theoretical and experimental results show that ANVEH performs better than traditional nonlinear VIV energy harvesters under various system parameter variations.
Article
Energy & Fuels
Wei Jiang, Shuo Zhang, Teng Wang, Yufei Zhang, Aimin Sha, Jingjing Xiao, Dongdong Yuan
Summary: A standardized method was developed to evaluate the availability of solar energy resources in road areas, which combined the Analytic Hierarchy Process (AHP) and the Geographic Information System (GIS). By analyzing critical factors and using a multi-indicator evaluation method, the method accurately evaluated the utilization of solar energy resources and guided the optimal location selection for road photovoltaic (PV) projects. The results provided guidance for the application of road PV projects and site selection for route corridors worldwide, promoting the integration of transportation and energy.
Article
Energy & Fuels
Chang Liu, Jacob A. Wrubel, Elliot Padgett, Guido Bender
Summary: The study investigates the effects of coating defects on the performance of the anode porous transport layer (PTL) in water electrolyzers. The results show that an increasing fraction of uncoated regions on the PTL leads to decreased cell performance, with continuous uncoated regions having a more severe impact compared to multiple thin uncoated strips.
Article
Energy & Fuels
Marcos Tostado-Veliz, Xiaolong Jin, Rohit Bhakar, Francisco Jurado
Summary: In this paper, a coordinated charging price mechanism for clusters of parking lots is proposed. The research shows that enabling vehicle-to-grid characteristics can bring significant economic benefits for users and the cluster coordinator, and vehicle-to-grid impacts noticeably on the risk-averse character of the uncertainty-aware strategies. The developed pricing mechanism can reduce the cost for users, avoiding to directly translate the energy cost to charging points.
Article
Energy & Fuels
Duan Kang
Summary: Building an energy superpower is a key strategy for China and a long-term goal for other countries. This study proposes an evaluation system and index for measuring energy superpower, and finds that China has significantly improved its ranking over the past 21 years, surpassing other countries.
Article
Energy & Fuels
Fucheng Deng, Yifei Wang, Xiaosen Li, Gang Li, Yi Wang, Bin Huang
Summary: This study investigated the synergistic blockage mechanism of sand and hydrate in gravel filling layer and the evolution of permeability in the layer. Experimental models and modified permeability models were established to analyze the effects of sand particles and hydrate formation on permeability. The study provided valuable insights for the safe and efficient exploitation of hydrate reservoirs.
Article
Energy & Fuels
Hao Wang, Xiwen Chen, Natan Vital, Edward Duffy, Abolfazl Razi
Summary: This study proposes a HVAC energy optimization model based on deep reinforcement learning algorithm. It achieves 37% energy savings and ensures thermal comfort for open office buildings. The model has a low complexity, uses a few controllable factors, and has a short training time with good generalizability.
Article
Energy & Fuels
Moyue Cong, Yongzhuo Gao, Weidong Wang, Long He, Xiwang Mao, Yi Long, Wei Dong
Summary: This study introduces a multi-strategy ultra-wideband energy harvesting device that achieves high power output without the need for external power input. By utilizing asymmetry, stagger array, magnetic coupling, and nonlinearity strategies, the device maintains a stable output voltage and high power density output at non-resonant frequencies. Temperature and humidity monitoring are performed using Bluetooth sensors to adaptively assess the device.
Article
Energy & Fuels
Tianshu Dong, Xiudong Duan, Yuanyuan Huang, Danji Huang, Yingdong Luo, Ziyu Liu, Xiaomeng Ai, Jiakun Fang, Chaolong Song
Summary: Electrochemical water splitting is crucial for hydrogen production, and improving the hydrogen separation rate from the electrode is essential for enhancing water electrolyzer performance. However, issues such as air bubble adhesion to the electrode plate hinder the process. Therefore, a methodology to investigate the two-phase flow within the electrolyzer is in high demand. This study proposes using a microfluidic system as a simulator for the electrolyzer and optimizing the two-phase flow by manipulating the micro-structure of the flow.
Article
Energy & Fuels
Shuo Han, Yifan Yuan, Mengjiao He, Ziwen Zhao, Beibei Xu, Diyi Chen, Jakub Jurasz
Summary: Giving full play to the flexibility of hydropower and integrating more variable renewable energy is of great significance for accelerating the transformation of China's power energy system. This study proposes a novel day-ahead scheduling model that considers the flexibility limited by irregular vibration zones (VZs) and the probability of flexibility shortage in a hydropower-variable renewable energy hybrid generation system. The model is applied to a real hydropower station and effectively improves the flexibility supply capacity of hydropower, especially during heavy load demand in flood season.
Article
Energy & Fuels
Zhen Wang, Kangqi Fan, Shizhong Zhao, Shuxin Wu, Xuan Zhang, Kangjia Zhai, Zhiqi Li, Hua He
Summary: This study developed a high-performance rotary energy harvester (AI-REH) inspired by archery, which efficiently accumulates and releases ultralow-frequency vibration energy. By utilizing a magnetic coupling strategy and an accumulator spring, the AI-REH achieves significantly accelerated rotor speeds and enhanced electric outputs.
Article
Energy & Fuels
Yi Yang, Qianyi Xing, Kang Wang, Caihong Li, Jianzhou Wang, Xiaojia Huang
Summary: In this study, a novel hybrid Quantile Regression (QR) model is proposed for Probabilistic Load Forecasting (PLF). The model integrates causal dilated convolution, residual connection, and Bidirectional Long Short-Term Memory (BiLSTM) for multi-scale feature extraction. In addition, a Combined Probabilistic Load Forecasting System (CPLFS) is proposed to overcome the inherent flaws of relying on a single model. Simulation results show that the hybrid QR outperforms traditional models and CPLFS exceeds the best benchmarks in terms of prediction accuracy and stability.
Article
Energy & Fuels
Wen-Jiang Zou, Young-Bae Kim, Seunghun Jung
Summary: This paper proposes a dynamic prediction model for capacity fade in vanadium redox flow batteries (VRFBs). The model accurately predicts changes in electrolyte volume and capacity fade, enhancing the competitiveness of VRFBs in energy storage applications.
Article
Energy & Fuels
Yuechao Ma, Shengtie Wang, Guangchen Liu, Guizhen Tian, Jianwei Zhang, Ruiming Liu
Summary: This paper focuses on the balance of state of charge (SOC) among multiple battery energy storage units (MBESUs) and bus voltage balance in an islanded bipolar DC microgrid. A SOC automatic balancing strategy is proposed considering the energy flow relationship and utilizing the adaptive virtual resistance algorithm. The simulation results demonstrate the effectiveness of the proposed strategy in achieving SOC balancing and decreasing bus voltage unbalance.
Article
Energy & Fuels
Raad Z. Homod, Basil Sh. Munahi, Hayder Ibrahim Mohammed, Musatafa Abbas Abbood Albadr, Aissa Abderrahmane, Jasim M. Mahdi, Mohamed Bechir Ben Hamida, Bilal Naji Alhasnawi, A. S. Albahri, Hussein Togun, Umar F. Alqsair, Zaher Mundher Yaseen
Summary: In this study, the control problem of the multiple-boiler system (MBS) is formulated as a dynamic Markov decision process and a deep clustering reinforcement learning approach is applied to obtain the optimal control policy. The proposed strategy, based on bang-bang action, shows superior response and achieves more than 32% energy saving compared to conventional fixed parameter controllers under dynamic indoor/outdoor actual conditions.
