Fuel最新文献

{"title":"Fe-Mg alloy nitrogen carrier for chemical looping ammonia synthesis process formed by mechanochemical nitrogen fixation and heating hydrogenation","authors":"Zhicheng Deng ,&nbsp;Yan Cao","doi":"10.1016/j.fuel.2024.133930","DOIUrl":"10.1016/j.fuel.2024.133930","url":null,"abstract":"<div><div>Ammonia is an ideal hydrogen storage material and can be directly used as a carbon-free energy substance. At the same time, ammonia is widely used in producing fertilizers, ensuring global food supply. The demand for ammonia will continue to increase in the future. However, the Haber-Bosch process for ammonia production has problems with high energy consumption and high carbon emission, which is no longer adapted to the requirements of developing a low-carbon and environmentally friendly society. In this paper, a two-step process for ammonia synthesis by ball milling nitrogen fixation and heating was developed by mechanical alloying and chemical looping methods. Ball milling of iron powder for ammonia synthesis proved feasible but less efficient. Under the same conditions, the amount of nitrogen fixed by adding 10 wt% magnesium is about three times that of pure iron powder. After nitrogen fixation, ammonia was produced by heating in an argon-hydrogen mixture. After 1 h of reaction, the nitrogen conversion rate reached about 50 %, and the final nitrogen conversion rate exceeded 80 %. After ammonia release, the carrier can be directly ball-milled for nitrogen fixation to form a chemical looping cycle. Magnesium changes the grain size, lattice size, and microstrain of iron and also transfers some electrons to iron, so it plays a dual role in structural and electronic additives. This process still has great potential for optimization and is easily coupled with renewable energy, which is expected to compete with industrial ammonia synthesis in the future.</div></div>","PeriodicalId":325,"journal":{"name":"Fuel","volume":"384 ","pages":"Article 133930"},"PeriodicalIF":6.7,"publicationDate":"2024-12-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142759245","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}

{"title":"Neuro fuzzy-grey wolf optimization-based modelling and analysis of diesel engine using tire oil with different proportions of 2-EHN","authors":"Rajeev Singh Chauhan,&nbsp;Nitin Shrivastava","doi":"10.1016/j.fuel.2024.133849","DOIUrl":"10.1016/j.fuel.2024.133849","url":null,"abstract":"<div><div>Globally, billions of automotive tires are discarded each year. However, managing their disposal is challenging. One of the options involves the pyrolysis of discarded tires to generate tire pyrolysis oil, as engine fuel. This study investigates the incorporation of 2-EHN into two distinct desulfurized TPO blends with advanced injection timing as a solution to counter the low cetane number of TPO. It examines three distinct concentrations of 2-EHN i.e. 0.15 %, 0.30 %, and 0.45 %, in TPO blends of 20 % and 40 %. The findings indicate the incorporation of 2-EHN into TPO led up to 9.8 % enhancement in thermal efficiency and 15 % reduction in ignition delay. Additionally, it resulted in reduced smoke and NOx by up to 29 % and 19 %, respectively, although a slight rise in HC and CO emissions was observed. However, further investigations into the engine’s behavior are constrained by the complexities involved, time limitations, and restrictions on experimental costs. To overcome these constraints, novel empirical models have been devised by integrating the Adaptive Neuro-Fuzzy Inference System (ANFIS) with the grey wolf optimization (GWO) technique. The R, R² values were near one, and low values of MAPE, MSE, and RMSE demonstrated strong alignment with the experimental findings.</div></div>","PeriodicalId":325,"journal":{"name":"Fuel","volume":"384 ","pages":"Article 133849"},"PeriodicalIF":6.7,"publicationDate":"2024-12-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142759166","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}

{"title":"Comparative study on H-abstraction reactions of MPK and DEK initiated by OH and CH3 radicals: Kinetic insights and model refinements","authors":"Lei Chen ,&nbsp;Jiuning He ,&nbsp;Jianhua Li ,&nbsp;Xingzhi Wang ,&nbsp;Yanhao Duan ,&nbsp;Mengjiao Gao ,&nbsp;Jia Li ,&nbsp;Changhua Zhang ,&nbsp;Deliang Chen","doi":"10.1016/j.fuel.2024.133914","DOIUrl":"10.1016/j.fuel.2024.133914","url":null,"abstract":"<div><div>Elucidating the combustion chemistry of pentanone isomers provides critical insights into the reaction pathways of complex fuels and ketones with more than five carbon atoms. This study investigates the influence of OH and CH₃ radicals in the oxidation processes of pentanone isomers, employing multi-structural variational transition state theory in conjunction with small curvature tunneling effects to calculate H-abstraction rate constants and branching ratios for the 2-pentanone (MPK) + OH/CH₃ and 3-pentanone (DEK) + OH/CH₃ reaction systems across a temperature range of 200–1500 K. The findings reveal that multi-structural torsional anharmonicity significantly influences reaction rate constants and branching ratios, thereby altering the importance attributed to different reaction channels. In the MPK + OH system, the carbonyl group’s interaction with the transition state of reaction R1β, through hydrogen bonding, reduces the reaction barrier, rendering R1β the dominant pathway. For the MPK + CH₃ system, multi-structural torsional anharmonicity leads to channel competition, with R2α prevailing between 210–1400 K. In the DEK + OH system, R1*α takes precedence at temperatures exceeding 220 K. The total rate constants for the MPK + OH and DEK + OH systems, derived from our calculations, are presented with excellent agreement to the measurements, affirming the reliability of our computational approach. The specific expressions for these rate constants, are delineated as follows: <span><math><mrow><msub><mi>k</mi><mrow><mi>R</mi><mn>1</mn></mrow></msub><mo>=</mo><mn>0.0160</mn><mo>×</mo><msup><mi>T</mi><mrow><mn>4.599</mn></mrow></msup><mi>exp</mi><mrow><mo>(</mo><mn>1916.431</mn><mo>/</mo><mi>T</mi><mo>)</mo></mrow></mrow></math></span> and <span><math><mrow><msub><mi>k</mi><mrow><msup><mi>R</mi><mo>∗</mo></msup><mn>1</mn></mrow></msub><mo>=</mo><mn>18.1368</mn><mo>×</mo><msup><mi>T</mi><mrow><mn>3.714</mn></mrow></msup><mi>exp</mi><mrow><mo>(</mo><mn>1128.475</mn><mo>/</mo><mi>T</mi><mo>)</mo></mrow></mrow></math></span> (cm³mol^-1sec^-1). Utilizing the computed rate constants, the Pieper, Kang, and Lin kinetic models are refined, enhancing the simulation accuracy of ignition delay times and species concentrations. Sensitivity analyses have been conducted to identify the pivotal reactions within the oxidation processes of MPK and DEK.</div></div>","PeriodicalId":325,"journal":{"name":"Fuel","volume":"384 ","pages":"Article 133914"},"PeriodicalIF":6.7,"publicationDate":"2024-12-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142759241","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}

{"title":"Evolutionary trends and photothermal catalytic reduction performance of carbon dioxide by MOF-derived MnOx","authors":"Dou Chuanchuan,&nbsp;Liu Yuling,&nbsp;Shu Hao,&nbsp;Li Shuaishuai,&nbsp;Shi Qiyuan,&nbsp;Luo Xinzeng","doi":"10.1016/j.fuel.2024.133949","DOIUrl":"10.1016/j.fuel.2024.133949","url":null,"abstract":"<div><div>Metal oxide catalysts derived from MOFs can inherit the excellent performance from their parent MOFs, possess abundant surface defects and high stability, and have attracted widespread interest in multiphase catalysis. In this study, we used Mn-MOF as a precursor and systematically investigated the evolution of MnO_x catalysts by setting different calcination temperatures and times. XRD, SEM, TEM, Fourier transform infrared spectroscopy (FTIR), N₂ adsorption–desorption analysis, XPS, H₂-TPR, CO₂-TPD, electrochemical characterization, and other methods were used to investigate the structural characteristics, microstructure, surface properties, and photoelectric properties of the catalysts. The catalytic performance of the catalysts was also investigated through photocatalytic carbon dioxide hydrogenation reduction tests. Research has shown that calcination temperature and time have a significant impact on the phase structure and surface properties of MnO_x, and the physicochemical properties of derived MnO_x can be controlled by controlling calcination temperature and time. Among them, MnO_x-500 has a wider light absorption range, better electron transfer performance, richer oxygen vacancies, and excellent separation performance of photo generated charge carriers, resulting in higher photocatalytic CO₂ hydrogenation and reduction performance. Its CO yield and selectivity reached 7420 μmol/g/h and above 99 %, respectively. This study provides valuable references for the preparation, optimization, and utilization in CO₂ photothermal catalytic conversion of MnO_x catalysts derived from MOFs.</div></div>","PeriodicalId":325,"journal":{"name":"Fuel","volume":"384 ","pages":"Article 133949"},"PeriodicalIF":6.7,"publicationDate":"2024-12-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142759243","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}

{"title":"Insight of oil-soluble Fe-based catalyst for direct liquefaction of Shangwan coal","authors":"Zhi Li ,&nbsp;Yuxin Wen ,&nbsp;Rui Zhang ,&nbsp;Mei Zhong ,&nbsp;Haiyun Liu ,&nbsp;Xin Zheng ,&nbsp;Haoquan Hu ,&nbsp;Lijun Jin","doi":"10.1016/j.fuel.2024.133951","DOIUrl":"10.1016/j.fuel.2024.133951","url":null,"abstract":"<div><div>Oil-soluble Fe-based catalysts with different carbon numbers of ligand were prepared to investigate the action mechanism of oil-soluble catalyst on direct coal liquefaction. Results showed that the increment of ligand carbon numbers decreased the average grain size of active phase Fe_1-xS, promoted activation of gaseous and solvent hydrogen and coal conversion into oil. Oil yield was remarkably increased from 57 wt% to 68 wt% with increasing carbon number in ligand from 8 to 18. A linear relationship between oil yield and oil-wetness of Fe-based catalysts was constructed. Ligand and Fe contributed to oil yield increment about by 5 wt% and 10 wt%, respectively. Oil yield was enhanced via participating in annihilation of coal pyrolysis free radicals by H-rich radicals from cleavage of oil-soluble ligands. When highly active iron stearate was used, almost similar oil yield at initial H₂ pressure of 6.50 MPa as that under 7.00 MPa indicated that liquefaction condition could be alleviated.</div></div>","PeriodicalId":325,"journal":{"name":"Fuel","volume":"384 ","pages":"Article 133951"},"PeriodicalIF":6.7,"publicationDate":"2024-12-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142759165","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}

{"title":"Molecular simulation of the adsorption and diffusion of CO2, CH4, and N2 in alkali metal-doped low/medium-rank coal","authors":"Jinzhang Jia ,&nbsp;Hailong Song ,&nbsp;Peng Jia ,&nbsp;Dongming Wang ,&nbsp;Dan Zhao ,&nbsp;Yinghuan Xing","doi":"10.1016/j.fuel.2024.133900","DOIUrl":"10.1016/j.fuel.2024.133900","url":null,"abstract":"<div><div>Coal-based adsorbents show promise for advancing Direct Air Capture (DAC) technology as support for carbon capture grows. Doping coal with alkali metals (Li, Na, K) enhances gas molecule interactions and improves adsorption capacity. Using Density Functional Theory (DFT) and Grand Canonical Monte Carlo (GCMC), the study investigated the adsorption and diffusion performances of CO₂, CH₄, and N₂ in modified coal. The results showed that binding energy increases with the increasing radius of the dopant atoms, with K-SM requiring the most energy (31.236 eV). The adsorption capacity followed the order: Na-coal &gt; Li-coal &gt; K-coal &gt; Undoped-coal, with Na-coal achieving the highest CO₂ adsorption (5.934 mmol/g). After alkali metal doping, the adsorption amounts of CO₂, CH₄, and N₂ increased by 26.80 %, 43.29 %, and 56.60 %, respectively, with the Na-doped middle-rank coal showing an average increase of 32.33 % in CO₂ adsorption. The diffusion coefficient of Na-coal was lower than that of Li-coal and K-coal, with CO₂ having the smallest diffusion coefficient (1.627 × 10^-8 m²/s). Overall, alkali metal doping significantly enhances the adsorption and stability for CO₂, CH₄, and N₂, particularly with Na doping in middle-rank coal, providing insights for developing high-performance CO₂ adsorbent.</div></div>","PeriodicalId":325,"journal":{"name":"Fuel","volume":"383 ","pages":"Article 133900"},"PeriodicalIF":6.7,"publicationDate":"2024-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142757328","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}

{"title":"Optimization of ultrasonic-assisted electrodeposition for high-performance CQDs-PPy/NPG composite electrodes in supercapacitors","authors":"Huaxing Li ,&nbsp;Fafeng Xia ,&nbsp;Chunyang Ma","doi":"10.1016/j.fuel.2024.133852","DOIUrl":"10.1016/j.fuel.2024.133852","url":null,"abstract":"<div><div>In this study, carbon quantum dots-polypyrrole/nanoporous gold (CQDs-PPy/NPG) composite electrodes were developed using ultrasonic-assisted electrodeposition with ultrasonic power levels ranging from 50 W to 200 W. The effects of ultrasonic power on the structural and electrochemical performance of the electrodes were systematically investigated. The electrode prepared at 150 W achieved a specific capacitance of 673.6F/g at a scan rate of 10 mV/s and 627.1F/g at 100 mV/s, reflecting a rate capability of 93.1 %. In contrast, the electrode prepared at 50 W demonstrated a specific capacitance of 437.8F/g at 10 mV/s and 251.0F/g at 100 mV/s, underscoring the considerable improvement in capacitance with higher ultrasonic power. Galvanostatic charge–discharge (GCD) tests at a current density of 5 A/g showed that the 150 W sample achieved a charging time of 408 s and a discharging time of 395 s, corresponding to a coulombic efficiency of 96.8 %. This composite electrode also exhibited excellent cycling stability, retaining 94.2 % of its initial capacitance after 20,000 cycles. Furthermore, it demonstrated an energy density of 513.7 Wh/kg at a power density of 5 W/kg. These findings suggest that optimizing ultrasonic power, particularly at 150 W, significantly improved the dispersion of CQDs and PPy, resulting in enhanced electrochemical performance. This composite emerges as a promising candidate for advanced supercapacitor applications. Furthermore, the CQDs-PPy/NPG composite was integrated into an asymmetric supercapacitor (ASC) using activated carbon (AC) as the negative electrode, achieving a high energy density of 42.8 Wh/kg at a power density of 2000 W/kg.</div></div>","PeriodicalId":325,"journal":{"name":"Fuel","volume":"383 ","pages":"Article 133852"},"PeriodicalIF":6.7,"publicationDate":"2024-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142757329","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}

{"title":"Direct reduction of iron ore using biomass biochar: Reduction rate, microstructural and morphological analysis","authors":"Antonio Fabozzi ,&nbsp;Francesca Cerciello ,&nbsp;Osvalda Senneca","doi":"10.1016/j.fuel.2024.133976","DOIUrl":"10.1016/j.fuel.2024.133976","url":null,"abstract":"<div><div>Direct Reduction Iron (DRI) of a natural hematite (Khumani Iron Ore, KIO), by lignocellulosic biomass (Mischantus Giganteous, MIS), has been carried out in a thermogravimetric apparatus (TGA) coupled with evolved gas analysis (EGA) at different temperatures (750–1200 °C) and weight ratios. The microstructural and morphological changes of KIO have been also investigated by means of X-ray Diffraction (XRD) and Scanning Electron Microscopy (SEM).</div><div>Biomass pyrolysis is scarcely influenced by the presence of iron up to 500 °C. At higher temperatures, the biochar left behind pyrolysis of biomass acts as reducing agent resulting in progressive reduction from hematite (Fe₂O₃) to metallic iron and, in parallel, gasification of the fixed carbon with release of CO₂ and mainly CO.</div><div>The reduction degree of KIO with biomass turns out to be comparable or even higher than that obtained with gaseous H₂ mixtures above ∼ 900 °C. XRD shows that Fe₂O₃ is completely reduced to metallic iron at 1000 °C. Reduced iron particles show well-developed porosity, with formation of a sponge-like microstructure; EDX metal maps reveal a re-distribution of contaminants in the iron particles after complete reduction. Accumulation of gangue elements, Si, promotes the formation of inorganic rich micro-spheres within the iron sponge-like architecture.</div></div>","PeriodicalId":325,"journal":{"name":"Fuel","volume":"383 ","pages":"Article 133976"},"PeriodicalIF":6.7,"publicationDate":"2024-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142757263","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Enhancing NH3-SCR denitrification performance through synergistic A- and B-site effects via CeFe modification of LaMnO3","authors":"Wei Zhang ,&nbsp;Qiao Wu ,&nbsp;Mengyao Dong ,&nbsp;Kang Xie ,&nbsp;Yanshan Yin ,&nbsp;Yunhe Zhou ,&nbsp;Jie Li ,&nbsp;Yehao Fu ,&nbsp;Yaocheng Liang ,&nbsp;Quanbin Song ,&nbsp;Min Ruan ,&nbsp;Shan Cheng ,&nbsp;Yanni Xuan","doi":"10.1016/j.fuel.2024.133891","DOIUrl":"10.1016/j.fuel.2024.133891","url":null,"abstract":"<div><div>ABO₃ type perovskite catalysts are widely used in NH₃-SCR to remove NO_x due to excellent low-temperature reduction performance. To study the synergistic effect of A and B sites on the structure, morphology and redox performance of modified perovskite catalysts (La_1-xCe_xMn_1-yFe_yO₃), LaMnO₃ perovskite catalysts were co-doped with CeFe by sol-gel method, and the crystal structure, surface chemical environment, optimal metal co-doping ratio and surface adsorption of the modified perovskite catalysts were clarified through various characterizations. In addition, through first-principles calculations, the differential charge density and binding energy of each doping system were analyzed, the relationship between the difficulty of Ce doping and the electronic population of Mn atoms and the redox ability of the catalyst was discussed, and the key bond types and their changing rules in perovskite catalytic reduction were clarified. The results showed that co-doping Ce and Fe could improve the denitrification efficiency and sulfur resistance of the catalyst. When the Fe doping ratio is 0.1, the denitrification activity is the highest. Among them, the La_0.9Ce_0.1Mn_0.9Fe_0.1O₃ catalyst showed the most favorable active acid site distribution and the best reduction performance, which was conducive to the adsorption and redox of gas molecules on the catalyst surface. At the same time, when the A and B sites were co-doped, the electron transferred mainly occurs between Ce ions and Fe ions, forming a synergistic effect and changing the covalent components between Mn-O and Fe-O bonds. This made the valence states of Mn and Fe ions more, enhanced the catalytic activity of perovskite, and promoted the redox of NO on the catalyst surface, thus providing a new idea for the redox reaction pathway of modified perovskite catalysts.</div></div>","PeriodicalId":325,"journal":{"name":"Fuel","volume":"383 ","pages":"Article 133891"},"PeriodicalIF":6.7,"publicationDate":"2024-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142757326","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}

{"title":"Characterization of cellular structure appearance in ethanol expanding spherical flames","authors":"R. Sastre ,&nbsp;M. Reyes ,&nbsp;J.M. Rodríguez-Díaz ,&nbsp;J. Lacey","doi":"10.1016/j.fuel.2024.133785","DOIUrl":"10.1016/j.fuel.2024.133785","url":null,"abstract":"<div><div>The objective of this work is to characterize the combustion process of ethanol flames under cellular conditions. Ethanol is considered an alternative fuel and can be used to replace fossil fuels. To investigate the behavior of ethanol as a fuel, some of its combustion properties are measured and characterized, such as laminar burning velocity and flame front stability, which strongly depend on the appearance of cellularity on the flame. The study is developed in a cylindric constant volume combustion bomb instrumented with Schlieren technique to visualize ethanol flames and make an optical diagnosis of the combustion process. Some cellular parameters are proposed to characterize the cellular structure of the flame, which quantitatively define the appearance and cellularity development, such as cellular radius, the time for the cellular structure apparition on the flame and the influence of cellularity on the burning velocity. Other dimensionless parameters that can help to determine the influence of cellularity in the combustion process and compare between different flames. An I-Optimal design of experiments is proposed in this work to characterize the flame stability of ethanol, design the experimental testing and develop predictive models for the proposed cellular parameters. The proposed area of study to assure cellular flames is delimited by an initial temperature of 343K, initial pressures from 0.15 MPa to 0.30 MPa and equivalence ratios ranging from 0.8 to 1.4. Images confirm that models predict correctly the cellular radius and others cellular parameters, and the appearance of cellularity affects the burning velocity generating an auto-turbulence in the flame which enhance it. Predictions of cellular radius obtained with developed model are in accordance with the results obtained by other works.</div></div>","PeriodicalId":325,"journal":{"name":"Fuel","volume":"383 ","pages":"Article 133785"},"PeriodicalIF":6.7,"publicationDate":"2024-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142757327","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}