Applications in Energy and Combustion Science最新文献

{"title":"Perspective industry papers on combustion","authors":"Bassam Dally , José L. Torero","doi":"10.1016/j.jaecs.2024.100315","DOIUrl":"10.1016/j.jaecs.2024.100315","url":null,"abstract":"","PeriodicalId":100104,"journal":{"name":"Applications in Energy and Combustion Science","volume":"21 ","pages":"Article 100315"},"PeriodicalIF":5.0,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143548016","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Special issue on “Production, Storage and Utilization of Hydrogen”","authors":"Youjun Lu , Kui Jiao","doi":"10.1016/j.jaecs.2024.100314","DOIUrl":"10.1016/j.jaecs.2024.100314","url":null,"abstract":"","PeriodicalId":100104,"journal":{"name":"Applications in Energy and Combustion Science","volume":"21 ","pages":"Article 100314"},"PeriodicalIF":5.0,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143548015","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Development of compact mechanism for lithium-ion battery venting gas fires using Cantera ordinary differential equation neural network algorithm","authors":"Mengjie Li,&nbsp;Hao Hu,&nbsp;Li Lu,&nbsp;Huangwei Zhang","doi":"10.1016/j.jaecs.2025.100326","DOIUrl":"10.1016/j.jaecs.2025.100326","url":null,"abstract":"<div><div>Lithium-ion battery fires pose significant challenges to the development of electric vehicles and energy storage systems due to their potential hazards and complex combustion behavior. To address these issues, this work develops the Cantera Ordinary Differential Equation Neural Network (CODENN) algorithm, which combines the computational power of neural ordinary differential equations with Cantera's advanced chemical kinetics modeling. This integration allows for the optimization of a wide range of chemical reactions, improving both the precision and versatility of reaction mechanism development. Using CODENN, a compact mechanism (COM) was developed by optimizing the Arrhenius parameters of the RED mechanism, which had been overly reduced from the detailed CRECK2003 mechanism (114 species, 1999 reactions). CRECK2003 was chosen for its proven accuracy in predicting the combustion properties of LIB venting gases. The resulting COM mechanism, with 30 species and 213 reactions, achieves a high fidelity of 94.8 % in predicting ignition delay times across equivalence ratios from 0.3 to 2.5, demonstrating the reliability and robustness of CODENN algorithm. Further analysis of speciation data and CO net production rates shows that the COM mechanism closely aligns with the species evolution of the ORI mechanism during autoignition, while exhibiting notably more intense CO production and consumption than the ORI mechanism. Path flux analysis indicates that, despite having shorter reaction chains than the ORI mechanism, the COM mechanism preserves the fundamental physical logic of fuel consumption (CH₄) leading to H₂O formation while introducing additional pathways for the generation and consumption of H and OH radicals. Sensitivity analysis across diverse equivalence ratios and temperatures consistently identifies reaction R5 (H + O₂ ≤&gt; O + OH) as the most temperature-sensitive reaction, underscoring its critical role in reaction kinetics of LIB venting gases.</div></div>","PeriodicalId":100104,"journal":{"name":"Applications in Energy and Combustion Science","volume":"22 ","pages":"Article 100326"},"PeriodicalIF":5.0,"publicationDate":"2025-02-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143509642","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Towards detailed combustion characteristics and linear stability analysis of premixed ammonia‒hydrogen‒air mixtures","authors":"Jun Cheng,&nbsp;Bo Zhang","doi":"10.1016/j.jaecs.2025.100325","DOIUrl":"10.1016/j.jaecs.2025.100325","url":null,"abstract":"<div><div>In this study, premixed ammonia‒hydrogen‒air mixtures at different pressures (50∼300 kPa), equivalence ratios (0.7∼1.5), and hydrogen concentrations (9∼50.00 %) were centrally ignited in a closed vessel, and the propagation of a spherical flame was recorded via a high-speed schlieren system. To accurately measure the laminar burning velocity, an AI model (RTMDet model) was trained on the schlieren images obtained in the experiments to mark the flame profile and calculate the flame area. The corresponding laminar combustion parameters were measured. Additionally, linear stability theory was applied to evaluate the critical conditions for the onset of flame instability. The results indicate that the hydrodynamic instability exhibits greater sensitivity to the initial pressure and equivalent ratio, whereas the molecular diffusion is remarkably sensitive to the hydrogen concentration in lean conditions. For the lean mixture, flame destabilization is enhanced by the thermal‒diffusion instability and curvature effect, whereas for the rich mixture, both the hydrodynamic instability and thermal‒diffusion instability is diminished, and flame stabilization is determined by the stretching effect. The critical Peclet number monotonically decreases as the equivalence ratio decreases and the hydrogen concentration increases. Hydrodynamic instability consistently promotes flame destabilization, whereas thermal-diffusion instability does not invariably contribute positively; for the lean mixtures, both the strain rate and curvature make the flame unstable, whereas they make the flame stable for the rich mixtures. The hydrogen concentration has a relatively limited effect on the strain rate and curvature. Additionally, the critical Karlovitz number indicates that flames in rich conditions are less susceptible to disturbances and instability. This study enhances the understanding of intrinsic instability mechanisms during flame propagation in ammonia‒hydrogen blended fuels, improves insights into their combustion characteristics, and provides a reference for optimizing combustion performance.</div></div>","PeriodicalId":100104,"journal":{"name":"Applications in Energy and Combustion Science","volume":"21 ","pages":"Article 100325"},"PeriodicalIF":5.0,"publicationDate":"2025-02-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143465507","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Characterization of the SpraySyn 2.0 burner: Droplet diameters, flame stability and particle sizes","authors":"Peter Lang ,&nbsp;Nils E. Schneider ,&nbsp;Franz J.T. Huber ,&nbsp;Stefan Will","doi":"10.1016/j.jaecs.2025.100324","DOIUrl":"10.1016/j.jaecs.2025.100324","url":null,"abstract":"<div><div>Spray flame synthesis (SFS) is a promising technique for the production of metal-oxide nanoparticles. However, the processes involved during the synthesis are not yet fully understood. To provide a common workbench for a wide range of investigations, the standardized <em>SpraySyn</em> burners have been introduced. This work presents an in-depth investigation of the improved <em>SpraySyn 2.0</em> burner, characterizing important droplet, combustion and particle features. The sizes of the droplets produced from an ignited ethanol spray are measured in a range between 20 mm and 45 mm height above the burner (HAB) employing wide-angle light scattering (WALS), revealing much smaller droplets compared to previous <em>SpraySyn 1.0</em>, which eventually leads to faster evaporation. Flame fluctuations are investigated using high-speed imaging of the flame chemiluminescence, indicating a change in fluctuation behaviour compared to the previous burner. WALS is also employed for single-shot in situ size measurements of produced iron-oxide and titanium-dioxide nanoparticles at various HABs ranging from 30 mm to 210 mm, allowing to observe the particle growth. To further assess the properties of the produced particles, extensive TEM measurements for both particle systems are conducted and evaluated. Finally, the influence of flame pulsations on particle size is investigated by coupling chemiluminescence imaging with WALS, yielding no correlation between both.</div></div>","PeriodicalId":100104,"journal":{"name":"Applications in Energy and Combustion Science","volume":"22 ","pages":"Article 100324"},"PeriodicalIF":5.0,"publicationDate":"2025-02-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143621527","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"bio-FLASHCHAIN® theory for rapid devolatilization of biomass. 10. Validations for agricultural residues","authors":"Stephen Niksa","doi":"10.1016/j.jaecs.2025.100323","DOIUrl":"10.1016/j.jaecs.2025.100323","url":null,"abstract":"<div><div>This study further validates a reaction mechanism called <em>bio</em>-FLASHCHAIN® to simulate the rapid primary devolatilization of any agricultural residue (AgRes) at any operating conditions. The evaluations cover 42 residues with alkali and alkaline earth metal (AAEM) levels to 2.8 dry wt. % at temperatures from 200 to 1050 °C; heating rates from 1 to 5000 °C/s; contact times to 1800 s; and pressures from vacuum to atmospheric. Collectively, the test data cover the yields and elemental compositions of oils and char and the yields of CO, CO₂, H₂O, and H₂. <em>Bio</em>-FC™ accurately simulates complete product distributions over this domain and correctly depicts how variations in heating rate, temperature, contact time, pressure, and AAEM loading shift these distributions. Proximate and ultimate analyses, the percentages of cellulose, hemicellulose, and lignin, and AAEM loadings are required input.</div><div>This study demonstrates, for the first time, accurate extrapolations across nearly the entire range of heating rates in the target commercial applications, based on two independent kinetic aspects. First, the placement of a devolatilization history in temperature is determined by the absolute rates of depolymerization and charring for each major component in the biomass; and, second, differences in ultimate yields for multiple heating rates scale on the ratios of the rates of depolymerization and charring. The interpretations for two disparate heating rates each for four AgRes gave activation energies for both depolymerization and monomer decomposition that varied by 50 – 60 kJ/mol in each of the major components, in stark contrast with the uniform energies used to previously interpret wood devolatilization.</div></div>","PeriodicalId":100104,"journal":{"name":"Applications in Energy and Combustion Science","volume":"21 ","pages":"Article 100323"},"PeriodicalIF":5.0,"publicationDate":"2025-02-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143420334","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Influence of surface cooling on the deposition behavior of combusting Iron particles","authors":"Steven Floor ,&nbsp;Jesse Hameete ,&nbsp;XiaoCheng Mi","doi":"10.1016/j.jaecs.2025.100322","DOIUrl":"10.1016/j.jaecs.2025.100322","url":null,"abstract":"<div><div>This work explores the impact of actively cooling the wall surface on the deposition behavior of combusting iron particles. Experiments were conducted with a Jet-in-Hot-Coflow (JHC) burner to analyze how a reduced wall temperature and wall material properties influence particle deposition behaviors. Multiple wall materials were utilized for the experiments. The deposition was quantified by measuring the deposited volume of samples using optical profilometry. The experimental results showed a clear reduction in deposition when active wall cooling was applied across all metallic wall materials under varying experiment durations. The material properties of the metal walls do impact deposition when cooling is applied, although the differences are small. Particle agglomeration is observed on cooled metal plates, suggesting a tendency for particles to adhere to other particles rather than the wall surface. Clear signs of wall melting were found on deposition plates that were not cooled. This observation suggests that cooling the wall material reduces wall melting, thereby decreasing deposition. Further testing with concrete plates uncovered that wall surface roughness can also influence deposition.</div></div>","PeriodicalId":100104,"journal":{"name":"Applications in Energy and Combustion Science","volume":"21 ","pages":"Article 100322"},"PeriodicalIF":5.0,"publicationDate":"2025-02-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143349306","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Observing simultaneous low temperature heat release and deflagration in a spark ignition engine using formaldehyde planar laser induced fluorescence","authors":"Samuel P. White,&nbsp;Christopher Willman,&nbsp;Felix C.P. Leach","doi":"10.1016/j.jaecs.2025.100321","DOIUrl":"10.1016/j.jaecs.2025.100321","url":null,"abstract":"<div><div>Low temperature heat release (LTHR) and its underlying chemistry is of particular interest for its potential to mitigate knock in spark ignition (SI) engines and enable advanced combustion strategies that rely on end gas autoignition. It has been proposed that, in SI engines, LTHR can occur volumetrically in the end gas, after ignition, whilst deflagration occurs elsewhere in the cylinder, however, current pressure-based heat release metering techniques are unable to distinguish such LTHR from high temperature heat release (HTHR) due to the overlapping pressure rise characteristics. Planar laser-induced fluorescence (PLIF) of formaldehyde, a known product of LTHR which is consumed during HTHR, offers an opportunity to detect end gas LTHR simultaneously with deflagration but is challenging to implement, as end gas is often located closer to cylinder walls and away from typical optically accessible locations. An optically accessible SI engine was used to show formaldehyde PLIF signal intensity under motored conditions is well correlated to cumulative LTHR intensity, using a recent method to isolate LTHR in SI engine conditions. An alternative ignition method using four side-mounted spark plugs was implemented to generate end gas close to the cylinder axis. This enabled measurement of LTHR within the end gas during the deflagration process of a SI engine, demonstrating the utility of formaldehyde PLIF to optically measure LTHR under conditions where pressure-based diagnostics cannot isolate the contribution of LTHR.</div></div>","PeriodicalId":100104,"journal":{"name":"Applications in Energy and Combustion Science","volume":"21 ","pages":"Article 100321"},"PeriodicalIF":5.0,"publicationDate":"2025-01-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143155119","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Comprehensive reevaluation of acetaldehyde chemistry - part I: Assessment of important kinetic parameters and the underlying uncertainties","authors":"Xinrui Ren ,&nbsp;Hongqing Wu ,&nbsp;Ruoyue Tang ,&nbsp;Yanqing Cui ,&nbsp;Mingrui Wang ,&nbsp;Song Cheng","doi":"10.1016/j.jaecs.2025.100320","DOIUrl":"10.1016/j.jaecs.2025.100320","url":null,"abstract":"<div><div>Understanding the combustion chemistry of acetaldehyde is crucial to developing robust and accurate combustion chemistry models for practical fuels, especially for biofuels. This study aims to re-evaluate the important rate and thermodynamic parameters for acetaldehyde combustion chemistry and determine the physical uncertainties of these parameters. The rate parameters of 79 key reactions are reevaluated using &gt; 100,000 direct experiments and quantum chemistry computations from &gt; 900 studies, and the thermochemistry (<em>Δh_f</em>(298 K), <em>s⁰</em>(298 K) and <em>c_p</em>) of 24 key species are reevaluated based on the ATCT database, the NIST Chemistry WebBook, the TMTD database, and 35 published chemistry models. The updated parameters are incorporated into a recent acetaldehyde chemistry model, which is further assessed against available fundamental experiments measurements (10 RCM-IDT, 123 ST-IDT, 633 JSR-species concentrations, and 102 flow reactor-species concentrations) and existing chemistry models, with clearly better performance obtained in the high-temperature regime. Sensitivity and flux analyses further highlight the insufficiencies of previous models in representing the key pathways, particularly the branching ratios of acetaldehyde- and formaldehyde-consuming pathways. Meanwhile, temperature-dependent and temperature-independent uncertainties are statistically evaluated for kinetic and thermochemical parameters, respectively, where the large differences between the updated and the original model parameters reveal the necessity of reassessment of kinetic and thermochemical parameters completely based on direct experiments and theoretical calculations for rate and thermodynamic parameters. The application of the determined uncertainty domains of the key kinetic and thermodynamic parameters is further demonstrated through a case study, with the modelling uncertainty and its reliability highlighted. With the configured uncertainty domain of the updated acetaldehyde chemistry model, further uncertainty quantification and optimization can be conducted to improve the model performance, which is currently under progress in the authors’ group.</div></div>","PeriodicalId":100104,"journal":{"name":"Applications in Energy and Combustion Science","volume":"21 ","pages":"Article 100320"},"PeriodicalIF":5.0,"publicationDate":"2025-01-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143155118","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Simultaneous 10 kHz PIV/OH-PLIF/chemiluminescence and conjoint data analysis approach for thermoacoustic oscillation near lean blowout","authors":"Zhen Cao ,&nbsp;Wenbei Liu ,&nbsp;Xin Yu ,&nbsp;Bin Hu ,&nbsp;Jiangbo Peng ,&nbsp;PengHua Qiu ,&nbsp;Chaobo Yang","doi":"10.1016/j.jaecs.2025.100319","DOIUrl":"10.1016/j.jaecs.2025.100319","url":null,"abstract":"<div><div>Simultaneous multi-parameter experimental data characterizing the flow-combustion interaction process are of great significance for understanding the flame instability mechanism in combustion systems. In this study, we present simultaneous high-speed particle image velocimetry (PIV), OH planar laser-induced fluorescence (OH-PLIF), chemiluminescence, and acoustic pressure measurements of lean blowout (LBO) flames contained within a dual swirl-stabilized combustor to analyze the thermal-fluid-acoustic multi-field coupling process. The instability transition behavior and generation process of thermoacoustic oscillations near-LBO are experimentally investigated and analyzed. We identify two unstable swirling flame conditions, the transition and near-LBO, based on the dynamic behaviors of the dual flames, with significant thermoacoustic instability characteristics observed near 570 Hz through microphone measurements. Additionally, we investigate the spatiotemporal evolution of heat release and flow structure oscillations using spectral proper orthogonal decomposition (SPOD). As the flame approaches LBO, the axial vibration mode becomes predominant in both heat release and flow oscillation processes, with flow instability primarily concentrated in the flame arm zone. A joint analysis of SPOD data from PIV and chemiluminescence reveals an in-phase coupling between the flow field and heat release fluctuations, providing direct evidence of the triggering mechanism for thermoacoustic oscillations near LBO. Furthermore, the time-frequency analysis results illustrate the chronological sequence and causality between acoustic oscillations and heat release fluctuations during the LBO process.</div></div>","PeriodicalId":100104,"journal":{"name":"Applications in Energy and Combustion Science","volume":"21 ","pages":"Article 100319"},"PeriodicalIF":5.0,"publicationDate":"2025-01-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143155113","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}