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Investigation and regulation of flow properties of rice straw ash for the slagging gasifier 稻秆灰渣气化炉用流动特性的研究与调控
IF 9 1区 工程技术
Renewable Energy Pub Date : 2025-06-16 DOI: 10.1016/j.renene.2025.123787
Jinzhe Li , Qinghua Guo , Xia Liu , Hao Wu , Guangsuo Yu
{"title":"Investigation and regulation of flow properties of rice straw ash for the slagging gasifier","authors":"Jinzhe Li ,&nbsp;Qinghua Guo ,&nbsp;Xia Liu ,&nbsp;Hao Wu ,&nbsp;Guangsuo Yu","doi":"10.1016/j.renene.2025.123787","DOIUrl":"10.1016/j.renene.2025.123787","url":null,"abstract":"<div><div>Gasification is one of many prospective ways to utilize straw biomass efficiently and economically. However, despite the low fusion temperatures of rice straw ash, the high silica content and the consequent high viscosity hinder the application of this biomass to the slagging gasifiers. To regulate the rice straw ash slag fluidity, two kinds of basic oxides (Fe<sub>2</sub>O<sub>3</sub> and CaO) were selected as additives and mixed with the ash in several ratios respectively. Based on the results of ash fusion temperatures (AFTs) test, X-ray diffraction (XRD) analysis and thermodynamic calculation, it was found that the basic additives combined with SiO<sub>2</sub> and reduced the flow temperature at low additions. When the addition continued to increase, Fe<sub>2</sub>O<sub>3</sub> combined with SiO<sub>2</sub> to form fusible minerals such as olivine, while CaO reacted with SiO<sub>2</sub> to generate refractory wollastonite. The influence mechanisms of basic additives on slag viscosity were further explored through viscosity tests and Fourier transform infrared spectroscopy (FTIR) analysis. Both additives could reduce the slag viscosity by increasing the content of the network modifiers. Compared with Fe<sup>3+</sup> and Fe<sup>2+</sup>, Ca<sup>2+</sup> had a smaller ionic potential and a superior ability to depolymerize the silicate network, so CaO had a better effect on viscosity reduction.</div></div>","PeriodicalId":419,"journal":{"name":"Renewable Energy","volume":"254 ","pages":"Article 123787"},"PeriodicalIF":9.0,"publicationDate":"2025-06-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144306273","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Nonlinear wave effects on the extreme stress of Semi-submersible FOWT using equivalent design wave approach 用等效设计波法研究非线性波对半潜式FOWT极限应力的影响
IF 9 1区 工程技术
Renewable Energy Pub Date : 2025-06-16 DOI: 10.1016/j.renene.2025.123636
Binbin Li, Lei Yang
{"title":"Nonlinear wave effects on the extreme stress of Semi-submersible FOWT using equivalent design wave approach","authors":"Binbin Li,&nbsp;Lei Yang","doi":"10.1016/j.renene.2025.123636","DOIUrl":"10.1016/j.renene.2025.123636","url":null,"abstract":"<div><div>The nonlinear wave effects are critical for the extreme stress prediction of floating offshore wind turbine (FOWT) under the harsh environment. Typically, the free-surface induced nonlinear Froude–Krylov and hydrostatic loads, and the viscosity induced drag force are the main contributors to the nonlinear wave effects of FOWT. However, the extreme stress prediction in the time domain involves time-consuming hydro-structure analysis, making it nearly impossible to conduct simulations under a large amount of environmental conditions. Equivalent design wave (EDW) is an efficient approach by using a few regular wave time-domain simulations to predict extreme stress, which is less explored for FOWT. To investigate the mentioned nonlinear wave effects, the extreme stress is predicted based on the OC5 Semi-submersible FOWT using EDW approach, and the hydro-structure interaction of hull structures is analyzed using boundary element and finite element methods. The stress superposition approach is proposed to consider the aerodynamic effects in the linear analysis. The nonlinear wave effects on the global response and local stress are discussed in details. The results show that the nonlinear wave effects significantly affects the motion response and bending moment due to the free-surface corrections. The nonlinear Morison loads have limited influence on the global response while they significantly amplifies the local extreme stress in braces and intersection regions. Moreover, the aerodynamic loads have a pronounced influence on the extreme stress at the tower-hull intersection. The EDW approach provides a practical way to take into account the nonlinear wave effects and improves the efficiency of structural optimization.</div></div>","PeriodicalId":419,"journal":{"name":"Renewable Energy","volume":"254 ","pages":"Article 123636"},"PeriodicalIF":9.0,"publicationDate":"2025-06-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144306379","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Solar photovoltaic SDM parameter estimation with improved sailfish optimizer based on random walking and multiple mutation strategies 基于随机行走和多突变策略的改进旗鱼优化器的太阳能光伏SDM参数估计
IF 9 1区 工程技术
Renewable Energy Pub Date : 2025-06-16 DOI: 10.1016/j.renene.2025.123771
Yuan-Zheng Gao, Xun Liu, Jie-Sheng Wang, Xin-Yi Guan, Song-Bo Zhang, Jun-Yu Lu
{"title":"Solar photovoltaic SDM parameter estimation with improved sailfish optimizer based on random walking and multiple mutation strategies","authors":"Yuan-Zheng Gao,&nbsp;Xun Liu,&nbsp;Jie-Sheng Wang,&nbsp;Xin-Yi Guan,&nbsp;Song-Bo Zhang,&nbsp;Jun-Yu Lu","doi":"10.1016/j.renene.2025.123771","DOIUrl":"10.1016/j.renene.2025.123771","url":null,"abstract":"<div><div>Solar photovoltaic technology uses solar panels to convert solar energy into electricity. In order to accurately estimate the parameters of the Single Diode Model (SDM), a sailfish optimizer (GAwalkSFO) based on random walk and Gaussian variation strategy was proposed. Firstly, seven mutation strategies are added to SFO, which are Gaussian mutation, Gaussian elite mutation, Cauchy mutation, adaptive T-distribution mutation, periodic mutation, random mutation and optimal mutation variation. In order to improve the convergence speed and search mechanism of SFO, the diversified local search strategies can easily make SFO fall into local optimal. The performance of the proposed sailfish optimizer (GAwalkSFO) was compared with that of Coati Optimization Algorithm (COA), Crowned Porcupine Optimization (CPO), Serval Optimization Algorithm (SOA), BAT Algorithm (BAT), SFO, Particle Swarm Optimization (PSO) and Differential Evolution (DE). The convergence speed and accuracy are significantly improved, the global search ability of the algorithm is enhanced and the algorithm is avoided to fall into the local optimal. Finally, several algorithms are used to estimate the parameters of the single diode model in solar PV, and the I-V and P-V characteristic curves are given. Simulation results show that GAwalkSFO can estimate SDM model parameters quickly and accurately, thus improving the performance of solar photovoltaic system. Compared with other algorithms, GAwalkSFO shows significant advantages in parameter fitting accuracy and computational efficiency. GAwalkSFO can quickly and accurately identify PV module parameters under different solar irradiance and temperature conditions.</div></div>","PeriodicalId":419,"journal":{"name":"Renewable Energy","volume":"254 ","pages":"Article 123771"},"PeriodicalIF":9.0,"publicationDate":"2025-06-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144306265","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Households’ adoption of distributed energy systems: The role of social interaction 家庭采用分布式能源系统:社会互动的作用
IF 9 1区 工程技术
Renewable Energy Pub Date : 2025-06-15 DOI: 10.1016/j.renene.2025.123779
Hao Li , Jiaqi Wang , Yanfang Zhang , Ruyin Long
{"title":"Households’ adoption of distributed energy systems: The role of social interaction","authors":"Hao Li ,&nbsp;Jiaqi Wang ,&nbsp;Yanfang Zhang ,&nbsp;Ruyin Long","doi":"10.1016/j.renene.2025.123779","DOIUrl":"10.1016/j.renene.2025.123779","url":null,"abstract":"<div><div>Despite the widely recognized advantages of distributed energy systems (DES), their adoption rates remain unstable and uneven. One important reason for this is that the influence of social interactions on DES adoption behavior has been largely overlooked. To address this gap, this study integrates social interaction theory, perceived value theory, and dual-processing theory into a comprehensive framework. Through structural equation modeling and stepwise regression modeling, the study examines the multidimensional effects of social interaction and decision-making factors on DES adoption based on survey data from 1144 households. The results indicate that in the Resident-owned Mode, characterized by higher complexity and risk, interpersonal relationships have a stronger influence, while in the Leasing or Cooperative Modes, which rely on external support, institutional relationships play a more significant role. Active interaction is crucial for individual decision-making in the Leasing or Resident-owned Modes, whereas passive interaction drives collective decision-making in the Cooperative Mode. Heuristic processing negatively moderates various DES adoption behaviors, while analytic processing exerts a positive moderating effect in the Cooperative Mode. This study provides important insights for policymakers, highlighting the need to strategically leverage the positive impact of social interactions when designing interventions to promote DES adoption.</div></div>","PeriodicalId":419,"journal":{"name":"Renewable Energy","volume":"254 ","pages":"Article 123779"},"PeriodicalIF":9.0,"publicationDate":"2025-06-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144313698","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Investigation of a mixed-mode solar dryer assisted with an air recycling system and phase change material unit for coffee beans drying: An experimental study 带有空气循环系统和相变物料单元的混合模式太阳能干燥机用于咖啡豆干燥的实验研究
IF 9 1区 工程技术
Renewable Energy Pub Date : 2025-06-15 DOI: 10.1016/j.renene.2025.123762
Suherman Suherman , Didi Dwi Anggoro , Sugiharto Sugiharto , Muhammad Anas Asy-Syaqiq
{"title":"Investigation of a mixed-mode solar dryer assisted with an air recycling system and phase change material unit for coffee beans drying: An experimental study","authors":"Suherman Suherman ,&nbsp;Didi Dwi Anggoro ,&nbsp;Sugiharto Sugiharto ,&nbsp;Muhammad Anas Asy-Syaqiq","doi":"10.1016/j.renene.2025.123762","DOIUrl":"10.1016/j.renene.2025.123762","url":null,"abstract":"<div><div>This study investigates a novel mixed-mode solar dryer designed to improve thermal efficiency in drying processes. The dryer incorporates a drying chamber connected to evacuated tube solar collectors, an air recirculation system, and phase change materials (PCM). The performance of the solar dryer was evaluated using coffee beans, with air recycling ratios of 100 %, 50 %, and 0 %, alongside PCM utilization. Results indicated that the 100 % recycling ratio raised the drying chamber temperature by 4°C–10 °C compared to the other ratios. With the assistance of PCM and an air recirculation system, the final moisture content of the coffee beans reached 12.23 % and 10.30 % for 100 % and 50 % recirculation ratios within 9 h to the Indonesian National Standard. Combining air recycling and PCM enhanced dryer efficiency while reducing energy consumption. The highest average solar dryer efficiency and specific moisture extraction ratio were recorded at the 100 % ratio with PCM, reaching 18.51 % and 0.282 kg/kWh, respectively, with the lowest specific energy consumption of 3.887 kWh/kg. The fastest payback period for this dryer is 1.56 years, yielding annual savings of 5496.32 USD over its 20-year at a 50 % ratio with PCM. Hence, this mixed-mode solar dryer has proven excellent thermal performance and economic feasibility.</div></div>","PeriodicalId":419,"journal":{"name":"Renewable Energy","volume":"254 ","pages":"Article 123762"},"PeriodicalIF":9.0,"publicationDate":"2025-06-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144298533","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
A compact and homologously excited hybrid energy harvester to scavenge fluid kinetic energy in pipelines for powering low-power sensor systems 一种紧凑的均匀激励混合能量采集器,用于清除管道中的流体动能,为低功耗传感器系统供电
IF 9 1区 工程技术
Renewable Energy Pub Date : 2025-06-15 DOI: 10.1016/j.renene.2025.123767
Jianwen Zhou, Jiandong Xu, Junhui Hu
{"title":"A compact and homologously excited hybrid energy harvester to scavenge fluid kinetic energy in pipelines for powering low-power sensor systems","authors":"Jianwen Zhou,&nbsp;Jiandong Xu,&nbsp;Junhui Hu","doi":"10.1016/j.renene.2025.123767","DOIUrl":"10.1016/j.renene.2025.123767","url":null,"abstract":"<div><div>The safe transportation of pipeline gas represents a critical issue in field of gas transport. To overcome the problems of environmental pollution and economic cost, which result from the utilization of dry batteries to power the sensors and other related low-power electronic devices, a hybrid energy harvester based on the piezoelectric, electromagnetic, and triboelectric mechanisms has been proposed. The relative motion of the rotor-stator structure and the elastic support can be utilized, the three different energy harvesting mechanisms can be excited simultaneously by the shaft rotation. This homologously excition approach makes the excitation more efficient and can increase the electrical output within a limited structure. It is experimentally demonstrated that the three mechanisms can work synergistically in a limited space, and the output power is effectively enhanced by the hybrid operation, compared to that of the single mechanism operation. The output power of the hybrid energy harvester is 2.52 mW at an external load of 10 kΩ. It is demonstrated that the energy harvester can successfully power a wireless temperature and humidity sensor, LEDs for nighttime illumination, etc. This suggests that the energy harvester may offer a novel approach for monitoring the safety of pipeline gas transportation.</div></div>","PeriodicalId":419,"journal":{"name":"Renewable Energy","volume":"255 ","pages":"Article 123767"},"PeriodicalIF":9.0,"publicationDate":"2025-06-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144314249","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Integrating desalination in Renewable Energy Communities: A study on Ventotene island 在可再生能源社区整合海水淡化:在Ventotene岛的研究
IF 9 1区 工程技术
Renewable Energy Pub Date : 2025-06-14 DOI: 10.1016/j.renene.2025.123759
Isabella Pizzuti , Gabriele Umberto Magni , Giovanni Delibra , Davide Astiaso Garcia , Alessandro Corsini
{"title":"Integrating desalination in Renewable Energy Communities: A study on Ventotene island","authors":"Isabella Pizzuti ,&nbsp;Gabriele Umberto Magni ,&nbsp;Giovanni Delibra ,&nbsp;Davide Astiaso Garcia ,&nbsp;Alessandro Corsini","doi":"10.1016/j.renene.2025.123759","DOIUrl":"10.1016/j.renene.2025.123759","url":null,"abstract":"<div><div>The technical and economic feasibility of a Renewable Energy Community (REC) of Ventotene, a non-connected small island in the Mediterranean area is presented in this work. RECs are a new model for energy sharing and the technical and environmental limitations on a small island require strong integration among members and other stakeholders to derive synergies among different vectors. The integration of the REC and the island desalinator is discussed, to store the excess of renewable energy in the form of desalinated water, shifting wintertime production to meet summertime consumption. The dynamic electric load of the members was acquired from quarter-hour meters and used to simulate the performance of the REC digital twin. Optimal sizing of the photovoltaic systems and the best coupling strategy with the desalinator operations were tested on the model. Results demonstrate that a customized strategy can boost synergies between the REC and desalinator, significantly improving their economic and environmental performance.</div></div>","PeriodicalId":419,"journal":{"name":"Renewable Energy","volume":"254 ","pages":"Article 123759"},"PeriodicalIF":9.0,"publicationDate":"2025-06-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144306266","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Structural features and electrochemical behavior of amino acid-based biocomposites 氨基酸基生物复合材料的结构特征和电化学行为
IF 9 1区 工程技术
Renewable Energy Pub Date : 2025-06-14 DOI: 10.1016/j.renene.2025.123758
Andrii Hrubiak , Asfaw Beyene , Yurii Yavorskyi , Irine Gotsiride , Bogdan Ostafiychuk
{"title":"Structural features and electrochemical behavior of amino acid-based biocomposites","authors":"Andrii Hrubiak ,&nbsp;Asfaw Beyene ,&nbsp;Yurii Yavorskyi ,&nbsp;Irine Gotsiride ,&nbsp;Bogdan Ostafiychuk","doi":"10.1016/j.renene.2025.123758","DOIUrl":"10.1016/j.renene.2025.123758","url":null,"abstract":"<div><div>The approach associated with the use of active organic components in the formation of the electrode composition is a new and promising solution for improving hybrid electrochemical systems. In this manuscript, we aim to determine the influence of the type of carbon template and the structural ordering of components during mechanosynthesison the manifestation of the electroconductivity and electrochemical properties of amino acid-based biocomposites. To achieve this, a series of biocomposites based on thermally expanded graphite (TEG) and carbon nanotubes (CNTs) and amino acids, like aspartate and glycine were fabricated and tested. Impedance spectroscopy has revealed that all the synthesized biocomposites exhibit an electronic conduction mechanism, with primary contribution to conductivity originating from the carbon templates. Direct observations have revealed that in the case of biocomposites with TEG, the template undergoes significant cracking and dispersion, leading to the formation of a mixture of TEG and amino acid particles. For biocomposites with CNTs, dispersion is comparatively less and uniform covering of compacted nanotube aggregates by amino acid particles is observed. The different structural organization of components in the biocomposites determines their electrochemical behavior in a three-electrode cell with a proton KOH electrolyte. Biocomposites with CNTs, due to the presence of surface-localized amino acids as centers of electrochemical reactions, exhibit pseudocapacitive charge accumulation. For biocomposites based on TEG, the disordered arrangement of components and the lack of stable conductivity contacts between amino acids and the template leads to capacitive charge accumulation through the formation ofthe electrical double layer.</div></div>","PeriodicalId":419,"journal":{"name":"Renewable Energy","volume":"254 ","pages":"Article 123758"},"PeriodicalIF":9.0,"publicationDate":"2025-06-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144279549","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
A robust safe reinforcement learning-based operation method for hybrid electric-hydrogen energy system risk-based dispatch considering dynamic efficiency characteristics of electrolysers 考虑电解槽动态效率特性的电氢混合动力系统风险调度鲁棒安全强化学习方法
IF 9 1区 工程技术
Renewable Energy Pub Date : 2025-06-14 DOI: 10.1016/j.renene.2025.123761
Jianbing Feng, Zhouyang Ren, Wenyuan Li
{"title":"A robust safe reinforcement learning-based operation method for hybrid electric-hydrogen energy system risk-based dispatch considering dynamic efficiency characteristics of electrolysers","authors":"Jianbing Feng,&nbsp;Zhouyang Ren,&nbsp;Wenyuan Li","doi":"10.1016/j.renene.2025.123761","DOIUrl":"10.1016/j.renene.2025.123761","url":null,"abstract":"<div><div>Hybrid electric-hydrogen energy systems hold transformative potential in achieving significant green energy transitions by leveraging complementary storage and flexibility. To safeguard operation against the variability of large-scale renewable generation, this paper formulates a risk-based dispatch for such systems that explicitly models the dynamic efficiency of electrolyzers. We propose a robust Soft Actor-Critic algorithm grounded in deep reinforcement learning to solve the resulting nonconvex, nonlinear, stochastic scheduling problem online, without resorting to simplifying approximations. A robust constrained Markov decision process framework is developed, which interprets constraint violations as an exploratory cost and uses the conditional value at risk of that cost to enforce a risk-averse policy. A novel second-order Bellman operator efficiently estimates this risk metric, while a primal-dual optimization scheme ensures maximum-entropy learning under safety constraints. Case studies on modified IEEE-118 and South Carolina 500-bus systems demonstrate that our approach converges 35.5 % faster and maintains superior constraint satisfaction compared to state-of-the-art deep reinforcement learning methods. Against traditional optimization-based methods, it reduces expected overloads by 21.9 %, peak overloads by 43.8 %, and improves overall computational efficiency by 99.994 %.</div></div>","PeriodicalId":419,"journal":{"name":"Renewable Energy","volume":"254 ","pages":"Article 123761"},"PeriodicalIF":9.0,"publicationDate":"2025-06-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144306269","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Microwave-assisted biodiesel production from WCO using snail shell-derived CaO@Coal fly ash: Optimization via RSM, cost analysis, kinetics, thermodynamics, and bibliometrics 利用蜗牛壳衍生CaO@Coal粉煤灰从WCO中微波辅助生产生物柴油:通过RSM、成本分析、动力学、热力学和文献计量学进行优化
IF 9 1区 工程技术
Renewable Energy Pub Date : 2025-06-14 DOI: 10.1016/j.renene.2025.123741
Shikhasmita Das , Biman Kaushik , Arpita Paul Chaudhury , Sanjay Basumatary , Priyanshu Pratap , Sakar Mohan , Ruma Rano , Samuel Lalthazuala Rokhum
{"title":"Microwave-assisted biodiesel production from WCO using snail shell-derived CaO@Coal fly ash: Optimization via RSM, cost analysis, kinetics, thermodynamics, and bibliometrics","authors":"Shikhasmita Das ,&nbsp;Biman Kaushik ,&nbsp;Arpita Paul Chaudhury ,&nbsp;Sanjay Basumatary ,&nbsp;Priyanshu Pratap ,&nbsp;Sakar Mohan ,&nbsp;Ruma Rano ,&nbsp;Samuel Lalthazuala Rokhum","doi":"10.1016/j.renene.2025.123741","DOIUrl":"10.1016/j.renene.2025.123741","url":null,"abstract":"<div><div>The global energy crisis and growing environmental alarms have hastened the search for renewable energy sources. This study explores a novel approach to biodiesel synthesis using microwave-assisted transesterification with a composite catalyst derived from snail shell-derived calcium oxide (CaO) supported on coal fly ash. The synthesized catalyst exhibits FAME conversion of 98.03 % under optimal conditions. Diverse analytical techniques were utilized to characterize the catalyst using TGA, XRF, BET, CO<sub>2</sub>-TPD, XRD, XPS, SEM, ICP-OES, and TEM analysis. Kinetic and thermodynamic parameters resulted in an activation energy of 36.6 kJ mol<sup>−1</sup>, an activation enthalpy of 33.62 kJ mol<sup>−1</sup>, and an entropy of −0.173 kJ mol<sup>−1</sup> K<sup>−1</sup>, respectively. The cost analysis effectively demonstrated the economic viability of this method. A comprehensive bibliometric analysis also provided insights into the research trends and developments in biodiesel production from waste materials regarding feedstock and catalysts. The findings indicate that microwave-assisted biodiesel production with eco-friendly catalysts offers a promising alternative for sustainable energy, meeting economic and environmental objectives as the Sustainable Development Goals (SDGs).</div></div>","PeriodicalId":419,"journal":{"name":"Renewable Energy","volume":"254 ","pages":"Article 123741"},"PeriodicalIF":9.0,"publicationDate":"2025-06-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144298411","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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