Article
Food Science & Technology
Weifa Su, Zipeng Jiang, Cheng Wang, Bocheng Xu, Zeqing Lu, Fengqin Wang, Xin Zong, Mingliang Jin, Yizhen Wang
Summary: In this study, co-fermentation of defatted rice bran (DFRB) using Bacillus subtilis, Saccharomyces cerevisiae, and Lactiplantibacillus plantarum was investigated. The co-fermentation effectively improved the nutritional value of DFRB by degrading antinutritional factors and fiber, and increasing protein content. It also prevented lipid oxidation and optimized the microbial community. High-throughput sequencing and metabolic analysis provided insights into the metabolic pathways during the co-fermentation of DFRB.
INTERNATIONAL JOURNAL OF FOOD MICROBIOLOGY
(2022)
Article
Agricultural Engineering
Qi Lu, Mingting Du, Qing Xu, Xunkuo Zhang, Xuran Liu, Guojing Yang, Dongbo Wang
Summary: The study developed a sulfite-based pretreatment method to enhance the production of VFAs from anaerobic fermentation of microalgae. The pretreatment released more easily biodegradable organics, destroyed the cell wall of microalgae, and facilitated the acetate generation pathway.
BIORESOURCE TECHNOLOGY
(2022)
Article
Food Science & Technology
Feiyue Ren, Yulin Feng, Huijuan Zhang, Jing Wang
Summary: This study examined the effects of different modification methods on defatted rice bran dietary fiber, with fermentation and enzymatic hydrolysis combined modification showing the most significant impact. The microstructural properties of the modified dietary fiber changed, while the crystal type remained generally unchanged. Glucose adsorption capacity was significantly improved with fermentation and enzymatic hydrolysis modification.
LWT-FOOD SCIENCE AND TECHNOLOGY
(2021)
Article
Green & Sustainable Science & Technology
Jianzheng Li, Wenbin Liu, Jia Meng, Lei Zhao, Jiuling Li, Min Zheng
Summary: This study proposes a new pretreatment strategy using ferric chloride (FeCl3) to enhance methane production from rice straw. The results show that FeCl3 pretreatment effectively destroys the recalcitrant structure of rice straw, releasing more reducing sugar and significantly increasing methane production.
Article
Food Science & Technology
Tingting Liu, Kaili Ding, Xinyun Zhou, Zhi-Hui Pan, Guozhong Zhao, Yunping Yao
Summary: Steam explosion (SE) pretreatment enhances fiber degradation of soy sauce residue (SSR), improving its internal structure and surface characteristics, which benefits soybean paste fermentation and enhances flavor formation.
LWT-FOOD SCIENCE AND TECHNOLOGY
(2021)
Article
Green & Sustainable Science & Technology
Mahroo Seyed Jafari Olia, Mehrdad Azin, Nasrin Moazami
Summary: This research evaluates the potential of Chlorella S4, a native marine isolate, for bioethanol production using the Thermo-Tolerant strain of Saccharomyces cerevisiae. The study investigates the use of acid-thermal pretreatment to improve glucose release and applies mixture design to select the best carbon sources for fermentation. The findings show that Chlorella S4 hydrolysate can be used for industrial bioethanol production.
Article
Agricultural Engineering
Hong Liu, Zhiping Zhang, Chaoyang Lu, Jian Wang, Kaixin Wang, Siyi Guo, Quanguo Zhang
Summary: The method of enzymatic hydrolysis after alkaline pretreatment significantly improves the production efficiency of biohydrogen from microalgae biomass, providing scientific reference for the development of efficient and low-cost biohydrogen production technology.
BIORESOURCE TECHNOLOGY
(2022)
Article
Chemistry, Analytical
Rui Diao, Mengchao Sun, Yitao Huang, Xifeng Zhu
Summary: The study found that washing pretreatment of walnut shells can change the distribution of components, reduce ash content, and enhance the ordered arrangement of microcrystals. Although washing pretreatment has a negative impact on biochar yield, co-pyrolysis with bio-oil distillation residue can increase the relative increase rate of biochar yield and optimize elemental distribution (particularly increased carbon content). Furthermore, hydrochloric acid washing and co-pyrolysis both have a positive effect on enhancing the thermal stability and increasing the carbon purity of biochar.
JOURNAL OF ANALYTICAL AND APPLIED PYROLYSIS
(2021)
Article
Environmental Sciences
Hongzhi Ma, Yujia Lin, Yong Jin, Ming Gao, Hongai Li, Qunhui Wang, Shengbo Ge, Liping Cai, Zhenhua Huang, Quyet Van Le, Changlei Xia
Summary: The study focused on converting food waste into chain acids through bioconversion, with ultrasonic and hydrothermal pretreatments proving most effective in enhancing caproic acid production. Microbial community analysis identified Caproiciproducens bacteria as key players in the bioconversion process.
ENVIRONMENTAL POLLUTION
(2021)
Article
Agricultural Engineering
Mostafa Gouda, Zhenxiong Huang, Yufei Liu, Yong He, Xiaoli Li
Summary: This study evaluated the functionality of bioactive terpenes on Spirulina and Chlorella biomasses. The results showed that terpenes can affect the physicochemical structure of microalgae biomass differently, with thymol and vanillin showing significant effects, while trans-cinnamaldehyde increased viscosity. The unique capability of Raman microspectroscopy in evaluating terpenes during microalgae cultivation was demonstrated in this work.
BIORESOURCE TECHNOLOGY
(2021)
Article
Energy & Fuels
Garima Srivastava, Vikas Kumar, Rahul Tiwari, Ravichandra Patil, Ajay Kalamdhad, Vaibhav Goud
Summary: The primary motivation of this study was to explore the energy potential of residual defatted microalgae biomass through anaerobic co-digestion with rice straw. The results show that co-digestion of microalgae with rice straw can significantly increase the cumulative biomethane yield, and the sludge obtained from anaerobic digestion can be reused for microalgae cultivation. Furthermore, the combination of microalgae and rice straw helps enhance energy recovery and provides a sustainable approach for the development of a microalgae-based biorefinery.
BIOMASS CONVERSION AND BIOREFINERY
(2022)
Article
Food Science & Technology
Na Liu, Likang Qin, Xiafen Lu, Yuxuan Zhao, Song Miao
Summary: This study aimed to improve the acid and aroma production of rice-acid by using simultaneous fermentation of Lactobacillus paracasei and Kluyveromyces marxianus. The quality of rice-acid was significantly improved with the highest lactic acid content and antioxidant capacity in the group with mixed inoculation. Different experimental groups showed significant differences in color and odor activity value, with potential flavor compounds contributing to flavor formation.
Article
Food Science & Technology
Hangyan Dan, Zepeng Gu, Cheng Li, Zhengfeng Fang, Bin Hu, Caixia Wang, Saiyan Chen, Xiaoshu Tang, Yuanyuan Ren, Wenjuan Wu, Zhen Zeng, Yuntao Liu
Summary: This study aimed to understand the impact of microbial growth and metabolism on rice sourdough and their relationship with quality characteristics of rice breads. The results showed that adding 30% rice sourdough had the best effect on improving specific volume of rice breads.
FOOD RESEARCH INTERNATIONAL
(2022)
Article
Engineering, Multidisciplinary
Shan Wu, Shuai Lu, Jun Liu, Shaoqing Yang, Qiaojuan Yan, Zhengqiang Jiang
Summary: This study investigated the physicochemical properties and bioactivities of rice beans fermented by Bacillus amyloliquefaciens. The fibrinolytic activity, peptides, total phenolics, flavonoids, anthocyanin, and superoxide dismutase activity in rice beans significantly increased after fermentation. The DPPH, ABTS free radical scavenging activities, and FRAP of fermented rice beans were much higher than unfermented rice beans, indicating potential benefits for thrombotic disease prevention.
Article
Food Science & Technology
Xinlai Dou, Xuyang Ren, Qiumei Zheng, Yinyuan He, Mingshou Lv, Linlin Liu, Ping Yang, Yanlin Hao, Fenglian Chen, Xiaozhi Tang
Summary: This study investigated the characteristics of fermented rice bread and the mechanism by which fermentation improves its anti-staling ability. The results showed that fermentation increased the amylose content of rice flour, decreased the viscosity and gelatinization temperature, and partially hydrolyzed amylopectin. The crystallinity of starch decreased and the thermal characteristics of fermented rice starch were lower than rice starch. Fermented rice bread exhibited improved texture characteristics and the best anti-staling ability. These findings provide a theoretical basis for improving the shelf life of bread.
Article
Chemistry, Multidisciplinary
Xiaobo Guo, Ao Xia, Wuyuan Zhang, Feng Li, Yun Huang, Xianqing Zhu, Xun Zhu, Qiang Liao
Summary: Fatty acid photodecarboxylase of Chlorella variabilis NC64A (CvFAP) is a novel photoenzyme that shows potential in waste lipid treatment and sustainable aviation fuel production. However, CvFAP is susceptible to blue light. In this study, it was found that an anaerobic environment significantly improved the photostability of CvFAP. Decarboxylation of palmitic acid by CvFAP under anaerobic conditions resulted in a 44.7% increase in pentadecane yield compared to aerobic conditions. The residual activity of CvFAP after blue-light preillumination in an anaerobic environment was 80.4%, 258.7 times higher than that in an aerobic environment. The accumulation of superoxide radical and singlet oxygen in CvFAP under aerobic conditions led to its poor photostability. The anaerobic environment helped mitigate the production of these reactive species, thus improving the photostability of CvFAP.
CHINESE CHEMICAL LETTERS
(2023)
Article
Agricultural Engineering
Feng Li, Ao Xia, Xiaobo Guo, Yun Huang, Xianqing Zhu, Xun Zhu, Qiang Liao
Summary: In this study, CvFAP was immobilized in magnetic nickel ferrite (NiFe2O4) nanoparticles for easy recovery. The interaction between Ni2+ and histidine of CvFAP was clarified by detecting the shift of Ni 2p in electron binding energy. The coordination of NiFe2O4 and CvFAP resulted in an efficient affinity binding with a capacity of 98 mg/g carrier. Hydrocarbon fuel concentration of 3.7 mM was obtained by NiFe2O4@CvFAP-induced photoenzymatic decarboxylation. The high stability of CvFAP in terms of residual enzyme activity of 79.7% at pH 9.0 and that of 68% at organic solvent ratio of 60% was observed.
BIORESOURCE TECHNOLOGY
(2023)
Article
Agricultural Engineering
Rajas Shinde, Anga Hackula, Richard O. Shea, Susanne Barth, Jerry D. Murphy, David M. Wall
Summary: Future energy systems require dispatchable renewable energy to balance high shares of intermittent renewables in electrical grids. Biogas from anaerobic digestion can generate electricity on-demand. High-rate methanogenic reactors, such as the Upflow Anaerobic Sludge Blanket (UASB), can quickly respond to variations in feeding. Experimental trials validated the feasibility of operating the UASB in a demand-driven manner, demonstrating its flexibility and potential to provide positive and negative balance to the power grid.
BIORESOURCE TECHNOLOGY
(2023)
Article
Green & Sustainable Science & Technology
Donal 'O Ceileachair, Sean O'Callaghan, David M. Wall, David Goulding, Declan O'Connor, Jerry D. Murphy, Richard O'Shea
Summary: On-farm anaerobic digestion plants can be used in areas without gas grid infrastructure access to improve manure management and produce renewable gas. A modelling analysis of a virtual biomethane pipeline is presented, showing the collection and delivery of gas from 100 onfarm biogas plants. Different scenarios are analyzed, considering different routing options and equipment. The use of a mobile-upgrading unit results in increased routing distance and emissions, impacting the sustainability of the collected biomethane.
JOURNAL OF CLEANER PRODUCTION
(2023)
Article
Environmental Sciences
Richard O'Shea, Yan Yang, Komal Kansagra, Daniel T. Hickey, Danielle Kohler, Jerry D. Murphy
Summary: This study aims to evaluate the potential biogas resource of by-products from 9 operational distilleries in 7 countries. It also calculates the energy resource and greenhouse gas emission savings from using these by-products as feedstock for anaerobic digestion. Additionally, other criteria such as by-product properties and facility size are important when considering the integration of anaerobic digestion with distilleries.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2023)
Article
Biotechnology & Applied Microbiology
Nurul Syahirah Mat Aron, Kit Wayne Chew, Zengling Ma, Yang Tao, Malinee Sriariyanun, Inn Shi Tan, Cuong Nguyen Manh, Ao Xia, Tonni Agustiono Kurniawan, Pau Loke Show
Summary: The increase in global temperature requires action to reduce greenhouse gas emissions, particularly in the transportation sector, which contributes up to 25% of total emissions. Biofuels have emerged as a potential sustainable alternative to traditional fossil fuels. However, the production of biofuels raises concerns about food security. This study focuses on the extraction of lipids from microalgae using a liquid biphasic flotation system combined with a sugaring-out method, demonstrating high extraction efficiency and the potential of sugar solution as a cell disruption agent.
FERMENTATION-BASEL
(2023)
Article
Engineering, Chemical
Anga Hackula, Richard O'Shea, Jerry D. Murphy, David M. Wall
Summary: The by-products from whiskey distillation, which contain organic liquids with high COD and residues with high solid content, need to be repurposed and valorized to reduce the carbon footprint of food and beverage industries. A two-phase anaerobic digester system, specifically the LBR-EGSB, is designed in this paper to produce VFAs and biogas for whiskey distilleries to transition towards a low-carbon bioeconomy. The system improves upon previous reactor designs by using an external gas-liquid-solid separator and a siphon-actuated leachate cup, and by replacing fresh water with distillery's liquid by-products. The LBR-EGSB proves to be effective in generating VFAs, COD removal, and methane-rich biogas, offering more by-product valorization and decarbonization opportunities.
ACS ENGINEERING AU
(2023)
Article
Agricultural Engineering
Anga Hackula, Rajas Shinde, Daniel Hickey, Richard O'Shea, Jerry D. Murphy, David M. Wall
Summary: The valorization of whiskey by-products was compared in three anaerobic digestion systems, which produced similar methane yields. These systems could satisfy 44% of the thermal energy demand at a distillery, reducing the carbon footprint by displacing natural gas. Two-phase systems had higher methane content and unlocked opportunities for volatile fatty acid production. The extraction of butyric acid and caproic acid could generate approximately 6.76 million euros for a 50 million liter alcohol facility (0.14 euros per liter of whiskey). All three anaerobic digestion systems showed the potential to convert linear distillery production processes into circular repurpose and reuse production processes.
BIORESOURCE TECHNOLOGY
(2023)
Article
Thermodynamics
Chen Deng, Xihui Kang, Richen Lin, Benteng Wu, Xue Ning, David Wall, Jerry D. Murphy
Summary: Lignocellulosic biomass can contribute to biogas production, but the recalcitrant structure of lignin hinders its biodegradation. Direct interspecies electron transfer (DIET) can enhance the degradation of lignin derivatives. In a circular bioeconomy system, lignin-derived biochar and activated carbon were found to improve the digestion of syringaldehyde, a typical lignin monomer. Biochar reduced the lag-phase time by 33-42% through enhanced syntrophic hydrogenotrophic methanogenesis, while activated carbon decreased the lag-phase time by 46-85% and promoted the degradation of volatile fatty acids by combining enhanced syntrophic oxidation and DIET. The highest biomethane yield was achieved when activated carbon was added at a dosage of 20 g/L, increasing by 33% compared to syringaldehyde digestion alone.
Article
Thermodynamics
Xihui Kang, Chen Deng, Rajas Shinde, Richen Lin, Jerry D. Murphy
Summary: This study investigated the effects of short-chain carboxylic acid-based deep eutectic solvents (DESs) pretreatments on lignin extraction from willow and subsequent biomethane production. Results showed that lactic acid-based DES pretreatment outperformed other types of DES pretreatment in terms of lignin removal efficiency and methane production. The optimal conditions for lactic acid-based DES pretreatment retained over 94% of the glucan content in the raw willow and achieved the highest lignin removal of 80%, resulting in a significant increase in biomethane production and a reduction in digestion time.
ENERGY CONVERSION AND MANAGEMENT
(2023)
Article
Energy & Fuels
Jingmiao Zhang, Shuai Wu, Ao Xia, Dong Feng, Yun Huang, Xianqing Zhu, Xun Zhu, Qiang Liao
Summary: Anaerobic digestion (AD) technology is an effective method for biogas production and livestock waste treatment. This study investigated the impact of oxytetracycline (OTC) on the AD process and found that OTC significantly inhibited methane production, with methane yields decreasing by 58.6% and 73.3% in mesophilic and thermophilic ADs respectively at an initial OTC concentration of 400 mg/L. OTC can be degraded by the AD process with a removal efficiency above 90% at lower concentrations. Higher OTC concentrations resulted in lower bio-methane yield, energy conversion efficiency, and contaminant removal in both mesophilic and thermophilic ADs.
Article
Green & Sustainable Science & Technology
Xue Ning, Chen Deng, Xihui Kang, Richard O'Shea, David M. Wall, Richen Lin, Jerry D. Murphy
Summary: This research investigates the optimization of biomethane yield from grass silage and cattle slurry through biochar-supplemented two-stage anaerobic digestion. The results demonstrate that the addition of biochar can increase methane production and improve the electrochemical properties of the digester contents.
JOURNAL OF CLEANER PRODUCTION
(2023)
Article
Biotechnology & Applied Microbiology
Jorge Diaz Huerta, Richard O'Shea, Jerry Murphy, David M. Wall
Summary: Marginal Abatement Cost Curves aim to compare and assess greenhouse gas mitigation options available in different sectors of the economy. In the Irish agricultural sector, large anaerobic digestion facilities are currently seen as a high-cost abatement solution. Previous studies on anaerobic digestion abatement costs have evaluated options such as biogas generation and renewable heat production, but they may not fully capture the variable nature of these systems.
Article
Engineering, Environmental
Feng Li, Ao Xia, Xiaobo Guo, Wuyuan Zhang, Yun Huang, Xianqing Zhu, Xun Zhu, Qiang Liao
Summary: Fatty acid photodecarboxylase (CvFAP) found in Chlorella variabilis NC64A can efficiently catalyze the conversion of C16-C18 fatty acids into shortened hydrocarbons under visible light. In this study, a cascade system integrating lipase hydrolysis and CvFAP decarboxylation was demonstrated for the efficient production of hydrocarbon fuels from waste oils, achieving a high production rate of 18.4 mM/h and an optimal conversion of 61.2% with a residence time of 50 min.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2023)
Article
Chemistry, Multidisciplinary
Ao Xia, Xiaobo Guo, Yingxin Chai, Wuyuan Zhang, Yun Huang, Xianqing Zhu, Xun Zhu, Qiang Liao
Summary: It was documented that green light was able to enhance the photostability of fatty acid photodecarboxylase from Chlorella variabilis (CvFAP). Compared to blue light, green light increased the yield of pentadecane by 27.6% and improved the residual activity of CvFAP by 5.9-fold after preillumination. Kinetics and thermodynamics studies showed that blue light facilitated a high activity of CvFAP.
CHEMICAL COMMUNICATIONS
(2023)
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.
