Article
Thermodynamics
Yanlei Shang, Zhen Wang, Liuhao Ma, Jinchun Shi, Hongbo Ning, Wei Ren, Sheng-Nian Luo
Summary: The pyrolysis of nitromethane was studied using mid-infrared laser absorption spectroscopy to measure the NO concentration time-histories. The results indicated that the NO formation during nitromethane pyrolysis is influenced by four important reactions, and the kinetic mechanism of nitromethane decomposition was validated through comparison of simulation and experimental data.
PROCEEDINGS OF THE COMBUSTION INSTITUTE
(2021)
Article
Thermodynamics
Rishav Choudhary, Sean Clees, Vivek Boddapati, Jiankun Shao, David F. Davidson, Ronald K. Hanson
Summary: The study investigated the impact of chain length on the time histories of key intermediate species during the first-stage ignition. Measurements were conducted on CO, CH2O, OH, and carbonyl compounds during the low temperature oxidation of n-octane and n-decane. Significant differences were observed between the measured and predicted ignition delay times and species formation rates. The measurements will contribute to the improvement of kinetic models and the development of rate rules for similar fuels. The study also revealed differences in the reactivity of n-octane and n-decane, indicating a correlation between species time histories, reactivity, and chain length.
COMBUSTION AND FLAME
(2023)
Article
Energy & Fuels
Isabelle C. Sanders, Nicholas M. Kuenning, Nicolas Q. Minesi, Daniel I. Pineda, R. Mitchell Spearrin
Summary: The thermal decomposition of methyl methacrylate was studied experimentally using species time-history measurements. This study provided valuable experimental data for the development of kinetic models for methyl methacrylate pyrolysis.
Article
Engineering, Multidisciplinary
F. A. Bendana, I. C. Sanders, N. G. Stacy, R. M. Spearrin
Summary: The method proposed in this work allows for experimentally determining a local characteristic velocity c*, providing reliable data support for further research.
MEASUREMENT SCIENCE AND TECHNOLOGY
(2021)
Article
Thermodynamics
Pujan Biswas, Rishav Choudhary, Alka Panda, David F. Davidson, Ronald K. Hanson
Summary: This work presents a new diagnostic method for quantitative measurements of formaldehyde in the temperature and pressure range relevant to combustion applications. By using laser absorption spectroscopy, CH2O can be measured accurately without interference from other combustion intermediates. The diagnostic has been successfully applied in various combustion experiments and compared with chemical kinetic models.
COMBUSTION AND FLAME
(2022)
Article
Thermodynamics
Dao Zheng, Dong He, Yanjun Du, Jidong Li, Meng Zhang, Yanjun Ding, Zhimin Peng
Summary: This study developed a laser absorption diagnostics system to measure the time-histories of temperature, CO, CO2, H2O, NH3, and NO during the oxidation of CH4/H2/NH3 and C2H4/NH3 mixtures. The Glarborg model performed the best in predicting the temperature and species time-histories, but discrepancies still exist. Detailed kinetics analyses indicated the most sensitive and promoting reaction for both mixtures, as well as the reactions that impede oxidation and affect the NO plateau. Updating rate constants improved the model performance, but discrepancies still exist.
COMBUSTION AND FLAME
(2023)
Article
Chemistry, Applied
Sarah A. Bentil, William J. Jackson, Christopher Williams, Timothy C. Miller
Summary: Inert solid rocket propellant samples were experimentally tested for their viscoelastic response at high strain rates using dynamic inflation experiments. Digital image correlation and inverse finite element analysis were employed to characterize and calibrate the propellant's behavior, providing insight into the material's response to shock wave exposure.
PROPELLANTS EXPLOSIVES PYROTECHNICS
(2022)
Article
Chemistry, Physical
Mohammad Adil, Aamir Farooq
Summary: This study presents measurements of temperature-dependent absorption spectra and thermal decomposition rates of propyl ethers (DnPE and DiPE), two renewable fuel candidates. Spectral measurements were performed over a specific wavelength range and the chosen wavelength was used to study the high-temperature pyrolysis of these ethers. Experimental overall decomposition rate coefficients for DnPE and DiPE were obtained.
JOURNAL OF PHYSICAL CHEMISTRY A
(2023)
Article
Thermodynamics
Olivier Mathieu, Nabiha Chaumeix, Yoshimichi Yamamoto, Said Abid, Claude-Etienne Paillard, Takuya Tezuka, Hisashi Nakamura, Clayton R. Mulvihill, Eric L. Petersen
Summary: Nitromethane is widely used in various applications, but its combustion chemistry remains poorly understood. Experimental studies show that existing models struggle to accurately predict nitromethane decomposition, highlighting the need for improvement in nitromethane models to enhance prediction accuracy.
PROCEEDINGS OF THE COMBUSTION INSTITUTE
(2021)
Article
Thermodynamics
D. Nativel, S. Peukert, J. Herzler, A. Drakon, M. Korshunova, E. Mikheyeva, A. Eremin, M. Fikri, C. Schulz
Summary: The effects of various oxygenated co-reactants on the formation of soot during the pyrolysis of gas mixtures containing ethylene as a base fuel were studied. Alcohols (methanol, ethanol, and n-butanol) and ethers (diethyl ether, dimethoxymethane, furan, and tetrahydrofuran) were used as the oxygenated co-reactants. The pyrolysis process was investigated using laser extinction and time-resolved spectroscopy techniques. The results showed that only methanol did not promote soot formation, while the addition of other oxygenated hydrocarbons increased soot yields. Simulations based on a detailed chemical kinetics mechanism provided qualitative insights into the experimental results, revealing that the promotion of soot formation by oxygenated co-reactants was related to the release of CH3 and C3H3 during thermal decomposition, leading to accelerated formation of C6H6 rings.
PROCEEDINGS OF THE COMBUSTION INSTITUTE
(2023)
Article
Engineering, Aerospace
Kenya Sugamura, Kyohei Kato, Kimiya Komurasaki, Hokuto Sekine, Yuma Itakura, Hiroyuki Koizumi
Summary: Repetitive-pulsed (RP) laser propulsion technology has the potential to reduce launch costs and replace chemical propulsion systems. The role of laser-supported detonation wave (LSD) in RP laser propulsion has been studied, but the mechanism of LSD propagation remains unclear. In this study, two-dimensional axisymmetric computational fluid dynamics (CFD) analysis was conducted to evaluate the effects of radial flow in a bow-shaped LSD, and the measured propagation velocity was found to be higher than the Chapman-Jouguet (CJ) velocity.
Article
Thermodynamics
Sihan Fang, Zezhong Wang, Xin Lin, Fei Li, Renjie Li, Jing Li, Zhedian Zhang, Yan Liu, Xilong Yu
Summary: The combustion of an oxygen/paraffin hybrid rocket motor was experimentally characterized using TDLAS and CFD simulations, showing that increasing oxidizer mass flux or oxidizer-to-fuel ratio improves combustion efficiency under the experimental conditions.
EXPERIMENTAL THERMAL AND FLUID SCIENCE
(2021)
Article
Thermodynamics
Mohamed Sy, Mhanna Mhanna, Aamir Farooq
Summary: This work presents a mid-infrared laser diagnostic that can detect multiple species in high-temperature shock-tube experiments using a single laser. By tuning the laser wavelength and employing a denoising model based on deep neural networks, the absorbance spectra of different species can be differentiated. This diagnostic strategy shows promise for detecting multiple species in high-temperature transient environments.
COMBUSTION AND FLAME
(2023)
Article
Materials Science, Multidisciplinary
Ondrej Stransky, Libor Beranek, Sunil Pathak, Jan Kaufman, Marek Bohm, Jaromir Kopecek, Frantisek Holesovsky, Simon Petrasek, Lucie Hlavunkova, Zbynek Soukup
Summary: This study investigates the impact of laser shock peening (LSP) on aluminum L-PBF, and finds significant improvements in residual stresses and reduced porosity. Microstructure analysis reveals material reactions such as grain refinement and dislocation redistribution.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2023)
Article
Chemistry, Multidisciplinary
Ping Liu, Xiangkui Gong, Tao Deng, Jin Yu
Summary: This study proposes a novel methodology for developing a simplified mechanism for high-carbon fuels, by combining detailed mechanisms for carbon chains C-0-C-4 and high-carbon molecular skeleton. The accuracy of the developed mechanism was validated by examining the combustion characteristics of different fuel components and aviation kerosene. The proposed methodology offers a new approach for developing mechanisms for high-carbon fuels.
Article
Thermodynamics
Song Cheng, Chiara Saggese, S. Scott Goldsborough, Scott W. Wagnon, William J. Pitz
Summary: This study investigates the chemical kinetic interactions of NO with a multi-component gasoline surrogate using experimental and modeling methods. It is found that adding NO promotes low-temperature heat release rate and ignition reactivity at low addition levels, while saturation or inhibiting effects are observed at higher NO concentrations. In the intermediate-temperature range, adding NO only enhances reactivity.
PROCEEDINGS OF THE COMBUSTION INSTITUTE
(2023)
Article
Thermodynamics
Adam J. Susa, Ronald K. Hanson
Summary: This paper reports simultaneous schlieren and emission imaging through the side wall of a round shock tube for experimental autoignition studies. Autoignition experiments are conducted for non-dilute propane-oxygen-argon mixtures at elevated temperatures and pressures. The results show the importance of experimental design and provide valuable data for understanding autoignition processes.
PROCEEDINGS OF THE COMBUSTION INSTITUTE
(2023)
Article
Thermodynamics
Adam J. Susa, Lingzhi Zheng, Ronald K. Hanson
Summary: Laminar flame speed (SL) measurements of stoichiometric propane in an oxygen-argon oxidizer were conducted at different temperatures and pressures. The flame propagation was recorded using schlieren imaging, and a refined approach was used to account for flame distortion and residual gas motion. The experimental SL values showed a stronger temperature dependence than predicted by existing kinetic mechanisms. The present work represents a significant advancement in experimental capabilities for high-temperature flame speed measurements and provides valuable data for kinetic model tuning and validation.
PROCEEDINGS OF THE COMBUSTION INSTITUTE
(2023)
Article
Thermodynamics
Sergey F. Gimelshein, Jesse W. Streicher, Ajay Krish, Ronald K. Hanson, Ingrid J. Wysong
Summary: The direct simulation Monte Carlo method was used to model transient thermal and chemical relaxation behind reflected shock waves. The study found that the Bias reaction model is superior to other models in reproducing experimental results.
JOURNAL OF THERMOPHYSICS AND HEAT TRANSFER
(2023)
Article
Thermodynamics
Shijun Dong, Goutham Kukkadapu, Jinhu Liang, Xiaobei Cheng, Scott W. Wagnon, William J. Pitz, Henry J. Curran
Summary: This study presents the first observation of two-stage ignition behavior of 1,2,4-trimethylbenzene (124TMB) under engine-like conditions. Blending n-heptane with 124TMB increases the reactivity of the mixture. A new detailed mechanism has been developed to simulate the experimentally measured ignition delay times.
PROCEEDINGS OF THE COMBUSTION INSTITUTE
(2023)
Article
Thermodynamics
Huaibo Chen, Weiqi Ji, Sean J. Cassady, Alison M. Ferris, Ronald K. Hanson, Sili Deng
Summary: In this study, maximum a posteriori estimation combined with a neural network response surface was used to optimize a propane mechanism against multispecies time-histories in a shock tube. The Bayesian approaches faced two problems: the effective independent-data number was not equal to the number of data points in a curve, and taking all points of a curve as targets could lead to different results. Three methods of calculating the likelihood function were used. The results showed that brute multiplication of all data points weakened the constraints from prior information and selecting critical points as targets yielded slightly better results. This study provides guidelines for modelers and experimentalists on the reasonable utilization of species time-histories and the importance of measurement error probability distribution and experiment design with emphasis on critical points.
PROCEEDINGS OF THE COMBUSTION INSTITUTE
(2023)
Article
Thermodynamics
Lingzhi Zheng, Zach Nygaard, Miguel Figueroa-Labastida, Adam J. Susa, Alison M. Ferris, Ronald K. Hanson
Summary: In this experiment, the laminar flame speeds of premixed propane in airgon were measured at atmospheric pressure. The experiment results were compared with a kinetic model, showing a maximum difference of 16%.
COMBUSTION AND FLAME
(2023)
Article
Thermodynamics
Shunsuke Suzuki, William J. Pitz
Summary: Fuel-rich oxidation of three gasoline surrogate components, toluene, isooctane, and n-heptane, in an atmospheric-pressure flow reactor was studied. The results showed that the order of PAH formation was toluene, isooctane, and n-heptane. Kinetic and sensitivity analyses were conducted to understand the pathways and reactions involved in PAH formation.
COMBUSTION AND FLAME
(2023)
Article
Thermodynamics
Rishav Choudhary, Sean Clees, Vivek Boddapati, Jiankun Shao, David F. Davidson, Ronald K. Hanson
Summary: The study investigated the impact of chain length on the time histories of key intermediate species during the first-stage ignition. Measurements were conducted on CO, CH2O, OH, and carbonyl compounds during the low temperature oxidation of n-octane and n-decane. Significant differences were observed between the measured and predicted ignition delay times and species formation rates. The measurements will contribute to the improvement of kinetic models and the development of rate rules for similar fuels. The study also revealed differences in the reactivity of n-octane and n-decane, indicating a correlation between species time histories, reactivity, and chain length.
COMBUSTION AND FLAME
(2023)
Article
Chemistry, Physical
Pujan Biswas, Rishav Choudhary, Ronald K. Hanson
Summary: We applied a multiwavelength speciation strategy to investigate the pyrolysis of n-pentane behind reflected shock waves. The measured species time histories were compared with four chemical kinetic models, but none of them were able to match the experimental data. Sensitivity analysis revealed that the unimolecular decomposition of n-pentane is the key reaction influencing the evolution of ethylene. By adjusting the rate coefficient of this reaction, a significant improvement in the prediction of species time histories was achieved. This is the first experimental determination of the rate coefficient of C5H12 -> nC3H7 + C2H5.
JOURNAL OF PHYSICAL CHEMISTRY A
(2023)
Article
Chemistry, Physical
Peter M. Finch, Zev N. Granowitz, Jesse W. Streicher, Ajay Krish, Christopher L. Strand, Ronald K. Hanson
Summary: We conducted shock-tube experiments using tunable diode laser absorption spectroscopy (TDLAS) to measure the collisional excitation of atomic nitrogen. The experiments were conducted behind reflected shocks at temperatures ranging from 8000 to 12000 K and pressures of 0.1 to 1.1 atm in mixtures of 1 or 2% molecular nitrogen (N2) in argon (Ar). The absorption from the transition between atomic nitrogen quantum states 4P to 4D was used to monitor the formation of electronically excited nitrogen.
JOURNAL OF PHYSICAL CHEMISTRY A
(2023)
Article
Mechanics
Jesse W. Streicher, Ajay Krish, Ronald K. Hanson
Summary: The fast decomposition of nitrous oxide (N2O) into molecular nitrogen (N-2) and atomic oxygen (O) was studied to probe the N-2 + O and NO + O Zeldovich reactions. Experiments were conducted at temperatures ranging from 2000 to 6800 K and pressures ranging from 0.04 to 1.67 atm, with 1% and 5% N2O diluted in argon (Ar) or N-2. Infrared and ultraviolet laser absorption diagnostic systems were used to measure the concentrations of N2O and NO, and the results were used to infer the reaction rates.
Article
Thermodynamics
Ponnuthurai Gokulakrishnan, Jiankun Shao, Michael S. Klassen, David F. Davidson, Ronald K. Hanson
Summary: This study investigates the formation and effects of NOx from ammonia impurities in high-pressure supercritical CO2 oxy-combustion conditions. Computational and experimental analyses show that the NH radical and CO2 reaction determines the rate of NOx formation. The sCO2 oxy-combustion significantly reduces NOx formation compared to traditional gas turbine conditions. The presence of NO in the recycled-CO2 promotes ignition and acts as a chemical catalyst to increase the combustion radical pool.
APPLICATIONS IN ENERGY AND COMBUSTION SCIENCE
(2023)
Article
Energy & Fuels
Lingzhi Zheng, Miguel Figueroa-Labastida, Zach Nygaard, Alison M. Ferris, Ronald K. Hanson
Summary: The laminar flame speeds of ethanol, iso-octane, and their blends were measured using a shock tube and a laser-spark ignition system. The results provide valuable data for studying high-temperature flame speeds and improving kinetic models. The correlation between fuel/air flame speeds and unburned-gas temperature was determined, and key controlling reactions for ethanol flame speeds were identified.
Article
Energy & Fuels
Yingna Du, Chen Huang, Wei Jiang, Qiangwei Yan, Yongfei Li, Gang Chen
Summary: In this study, anionic surfactants modified hydrotalcite was used as a flow improver for crude oil under low-temperature conditions. The modified hydrotalcite showed a significant viscosity reduction effect on crude oil. The mechanism of the modified hydrotalcite on viscosity and pour point of crude oil was explored through characterization and analysis of the modified hydrotalcite and oil samples.
Article
Energy & Fuels
Mohammad Saeid Rostami, Mohammad Mehdi Khodaei
Summary: In this study, a hybrid structure, MIL-53(Al)@MWCNT, was synthesized by combining MIL-53(Al) particles and -COOH functionalized multi-walled carbon nanotube (MWCNT). The hybrid structure was then embedded in a polyethersulfone (PES) polymer matrix to prepare a mixed matrix membrane (MMM) for CO2/CH4 and CO2/N2 separation. The addition of MWCNTs prevented MIL-53(Al) aggregation, improved membrane mechanical properties, and enhanced gas separation efficiency.
Article
Energy & Fuels
Yunlong Li, Desheng Huang, Xiaomeng Dong, Daoyong Yang
Summary: This study develops theoretical and experimental techniques to determine the phase behavior and physical properties of DME/flue gas/water/heavy oil systems. Eight constant composition expansion (CCE) tests are conducted to obtain new experimental data. A thermodynamic model is used to accurately predict saturation pressure and swelling factors, as well as the phase boundaries of N2/heavy oil systems and DME/CO2/heavy oil systems, with high accuracy.
Article
Energy & Fuels
Morteza Afkhamipour, Ebad Seifi, Arash Esmaeili, Mohammad Shamsi, Tohid N. Borhani
Summary: Non-conventional amines are being researched worldwide to overcome the limitations of traditional amines like MEA and MDEA. Adequate process and thermodynamic models are crucial for understanding the applicability and performance of these amines in CO2 absorption, but studies on process modeling for these amines are limited. This study used rate-based modeling and Deshmukh-Mather method to model CO2 absorption by DETA solution in a packed column, validated the model with experimental data, and conducted a sensitivity analysis of mass transfer correlations. The study also compared the CO2 absorption efficiency of DETA solution with an ionic solvent [bmim]-[PF6] and highlighted the importance of finding optimum operational parameters for maximum absorption efficiency.
Article
Energy & Fuels
Arastoo Abdi, Mohamad Awarke, M. Reza Malayeri, Masoud Riazi
Summary: The utilization of smart water in EOR operations has gained attention, but more research is needed to understand the complex mechanisms involved. This study investigated the interfacial tension between smart water and crude oil, considering factors such as salt, pH, asphaltene type, and aged smart water. The results revealed that the hydration of ions in smart water plays a key role in its efficacy, with acidic and basic asphaltene acting as intrinsic surfactants. The pH also influenced the interfacial tension, and the aged smart water's interaction with crude oil depended on asphaltene type, salt, and salinity.
Article
Energy & Fuels
Dongao Zhu, Kun Zhu, Lixian Xu, Haiyan Huang, Jing He, Wenshuai Zhu, Huaming Li, Wei Jiang
Summary: In this study, cobalt-based metal-organic frameworks (Co-based MOFs) were used as supports and co-catalysts to confine the NHPI catalyst, solving the leaching issue. The NHPI@Co-MOF with carboxyl groups exhibited stronger acidity and facilitated the generation of active oxygen radicals O2•, resulting in enhanced catalytic activity. This research provides valuable insights into the selection of suitable organic linkers and broadens the research horizon of MOF hybrids in efficient oxidative desulfurization (ODS) applications.
Article
Energy & Fuels
Edwin G. Hoyos, Gloria Amo-Duodu, U. Gulsum Kiral, Laura Vargas-Estrada, Raquel Lebrero, Rail Munoz
Summary: This study investigated the impact of carbon-coated zero-valent nanoparticle concentration on photosynthetic biogas upgrading. The addition of nanoparticles significantly increased microalgae productivity and enhanced nitrogen and phosphorus assimilation. The presence of nanoparticles also improved the quality of biomethane produced.
Article
Energy & Fuels
Yao Xiao, Asma Leghari, Linfeng Liu, Fangchao Yu, Ming Gao, Lu Ding, Yu Yang, Xueli Chen, Xiaoyu Yan, Fuchen Wang
Summary: Iron is added as a flocculant in wastewater treatment and the hydrothermal carbonization (HTC) of sludge produces wastewater containing Fe. This study investigates the effect of aqueous phase (AP) recycling on hydrochar properties, iron evolution and environmental assessment during HTC of sludge. The results show that AP recycling process improves the dewatering performance of hydrochar and facilitates the recovery of Fe from the liquid phase.
Article
Energy & Fuels
He Liang, Tao Wang, Zhenmin Luo, Jianliang Yu, Weizhai Yi, Fangming Cheng, Jingyu Zhao, Xingqing Yan, Jun Deng, Jihao Shi
Summary: This study investigated the influence of inhibitors (carbon dioxide, nitrogen, and heptafluoropropane) on the lower flammability limit of hydrogen and determined the critical inhibitory concentration needed for complete suppression. The impact of inhibitors on explosive characteristics was evaluated, and the inhibitory mechanism was analyzed with chemical kinetics. The results showed that with the increase of inhibitor quantity, the lower flammability limit of hydrogen also increased. The research findings can contribute to the safe utilization of hydrogen energy.
Article
Energy & Fuels
Zonghui Liu, Zhongze Zhang, Yali Zhou, Ziling Wang, Mingyang Du, Zhe Wen, Bing Yan, Qingxiang Ma, Na Liu, Bing Xue
Summary: In this study, high-performance solid catalysts based on phosphotungstic acid (HPW) supported on Zr-SBA-15 were synthesized and evaluated for the one-pot conversion of furfural (FUR) to γ-valerolactone (GVL). The catalysts were characterized using various techniques, and the ratio of HPW and Zr was found to significantly affect the selectivity of GVL. The HPW/Zr-SBA-15 (2-4-15) catalyst exhibited the highest GVL yield (83%) under optimized reaction conditions, and it was determined that a balance between Bronsted acid sites (BAS) and Lewis acid sites (LAS) was crucial for achieving higher catalytic performance. The reaction parameters and catalyst stability were also investigated.
Article
Energy & Fuels
Michael Stoehr, Stephan Ruoff, Bastian Rauch, Wolfgang Meier, Patrick Le Clercq
Summary: As part of the global energy transition, an experimental study was conducted to understand the effects of different fuel properties on droplet vaporization for various conventional and alternative fuels. The study utilized a flow channel to measure the evolution of droplet diameters over time and distance. The results revealed the temperature-dependent effects of physical properties, such as boiling point, liquid density, and enthalpy of vaporization, and showed the complex interactions of preferential vaporization and temperature-dependent influences of physical properties for multi-component fuels.
Article
Energy & Fuels
Yuan Zhuang, Ruikang Wu, Xinyan Wang, Rui Zhai, Changyong Gao
Summary: Through experimental validation and optimization of the chemical kinetic model, it was found that methanol can accelerate the oxidation reaction of ammonia, and methanol can be rapidly oxidized at high concentration. HO2 was found to generate a significant amount of OH radicals, facilitating the oxidation of methanol and ammonia. Rating: 7.5/10.
Article
Energy & Fuels
Radwan M. EL-Zohairy, Ahmed S. Attia, A. S. Huzayyin, Ahmed I. EL-Seesy
Summary: This paper presents a lab-scale experimental study on the impact of diethyl ether (DEE) as an additive to waste cooking oil biodiesel with Jet A-1 on combustion and emission features of a swirl-stabilized premixed flame. The addition of DEE to biodiesel significantly affects the flame temperature distribution and emissions. The W20D20 blend of DEE, biodiesel, and Jet A-1 shows similar flame temperature distribution to Jet A-1 and significantly reduces UHC, CO, and NOx emissions compared to Jet A-1.
Article
Energy & Fuels
Jiang Bian, Ziyuan Zhao, Yang Liu, Ran Cheng, Xuerui Zang, Xuewen Cao
Summary: This study presents a novel method for ammonia separation using supersonic flow and develops a mathematical model to investigate the condensation phenomenon. The results demonstrate that the L-P nucleation model accurately characterizes the nucleation process of ammonia at low temperatures. Numerical simulations also show that increasing pressure and concentration can enhance ammonia condensation efficiency.
Article
Energy & Fuels
Shiyuan Pan, Xiaodan Shi, Beibei Dong, Jan Skvaril, Haoran Zhang, Yongtu Liang, Hailong Li
Summary: Integrating CO2 capture with biomass-fired combined heat and power (bio-CHP) plants is a promising method for achieving negative emissions. This study develops a reliable data-driven model based on the Transformer architecture to predict the flowrate and CO2 concentration of flue gas in real time. The model validation shows high prediction accuracy, and the potential impact of meteorological parameters on model accuracy is assessed. The results demonstrate that the Transformer model outperforms other models and using near-infrared spectral data as input features improves the prediction accuracy.
