Article
Green & Sustainable Science & Technology
Mutlu Okcu, Yasin Varol, Sehmus Altun, Mujdat Firat
Summary: The study investigated the impact of using low reactivity fuel IBE in an RCCI engine and found the optimal premixed ratio for combustion characteristics and NOx emissions under different loads.
SUSTAINABLE ENERGY TECHNOLOGIES AND ASSESSMENTS
(2021)
Article
Energy & Fuels
Nalini Kanta Mukherjee, Hardikk Valera, Sarat Unnithan, Vikram Kumar, Vipin Dhyani, Shanti Mehra, Rahul Kumar Singh, Devendra Nene, Avinash Kumar Agarwal
Summary: This study evaluates the combustion and emission characteristics of using DME as a fuel for off-road vehicles in the agriculture sector. It found that modified fuel injection equipment significantly reduced emissions without compromising engine performance. DME combustion resulted in lower unregulated emissions compared to diesel.
Article
Green & Sustainable Science & Technology
Lei Zuo, Junfeng Wang, Deqing Mei, Shengchao Dai, Derick Adu-Mensah
Summary: This study aimed to establish a partial hydrogenated biodiesel-ethanol-diesel ternary blend and investigate its combustion performance and emissions. The results revealed that the ternary blend exhibited different properties compared to the binary blend in certain aspects.
Article
Energy & Fuels
Chetankumar Patel, Joonsik Hwang, Choongsik Bae, Avinash Kumar Agarwal
Summary: Engine experiments with blends of Jatropha and waste cooking oil biodiesels showed higher hydrocarbons and carbon monoxide emissions at low engine loads, while waste cooking oil biodiesel blends had higher oxides of nitrogen emissions. Unregulated emissions were higher at low loads but decreased with higher engine loads. Particulate number concentrations were relatively higher from biodiesel blends compared to mineral diesel.
JOURNAL OF ENERGY RESOURCES TECHNOLOGY-TRANSACTIONS OF THE ASME
(2021)
Article
Chemistry, Physical
Reza Mahmoodi, Mortaza Yari, Jafar Ghafouri, Kamran Poorghasemi
Summary: Biogas can be used as a cheaper, renewable fuel in internal combustion engines. However, the variability in raw materials and production process can affect the combustion control. Research has shown that fixing the biogas components can impact the combustion behavior and emissions in internal combustion engines.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2021)
Article
Energy & Fuels
Nadir Yilmaz, Francisco M. Vigil, Alpaslan Atmanli, Burl Donaldson
Summary: This study investigates the emissions of biodiesel/n-pentanol fuel mixtures in diesel engines, focusing on PAH formation and their toxicity to public health and the environment. The results show that the biodiesel/n-pentanol blends reduce PAH emissions and toxicity, and have a positive effect on preventing engine failures caused by wetstacking. n-pentanol is effective in reducing both total and heavier PAH emissions.
INTERNATIONAL JOURNAL OF ENERGY RESEARCH
(2023)
Article
Energy & Fuels
Jon Luecke, Bradley T. Zigler
Summary: The study introduces a novel method that correlates ignition delay time with RON in a constant-volume combustion chamber device, demonstrating high accuracy. Method calibration and validation show that this new approach offers significant improvements in terms of time and fuel volume requirements compared to traditional techniques.
Article
Energy & Fuels
Zeeshan Ahmad, Ossi Kaario, Cheng Qiang, Martti Larmi
Summary: In a DF combustion process, the ignition of the pilot fuel, burning of the main fuel near the pilot fuel, and combustion of the remaining main fuel form three overlapping stages. Fuels with high cetane number and aromatic content can achieve high DF combustion efficiency, low methane slip, THC and CO emissions, but lead to increased NOx emissions.
Article
Multidisciplinary Sciences
Sehmus Altun, Mujdat Firat, Mutlu Okcu
Summary: This study investigates the effect of hydrogen addition on combustion characteristics in a diesel engine operated in RCCI mode. The results show that adding hydrogen can improve thermal efficiency and reduce fuel consumption, but it also leads to higher NOx emissions.
ARABIAN JOURNAL FOR SCIENCE AND ENGINEERING
(2023)
Article
Thermodynamics
Mujdat Firat, Sehmus Altun, Mutlu Okcu, Yasin Varol
Summary: This study compares the combustion characteristics of conventional diesel, reactivity controlled compression ignition (RCCI), and dual direct injection (DI2) combustion modes. The results show that while both DI2 and RCCI modes are successful in reducing NO x and Smoke Opacity, they also result in higher CO and unburned HC emissions.
Article
Chemistry, Multidisciplinary
Miqdam Chaichan, Mohammed A. Fayad, Amged Al Ezzi, Hayder A. Dhahad, T. Megaritis, Talal Yusaf, Ahmed Al-Amiery, Wan Nor Roslam Wan Isahak
Summary: The combustion properties and emission characteristics of engines using rapeseed methyl ester (RME) and ultralow sulfur diesel (ULSD) were compared. RME combustion showed a higher heat release rate and shorter ignition delay period compared to ULSD combustion. However, RME combustion also resulted in increased HC and NOx formation at high loads. Additionally, the size of emitted particulate matter was smaller for ULSD.
Article
Engineering, Chemical
Mohit Raj Saxena, Rakesh Kumar Maurya
Summary: This study investigates the influence of diesel injection pressure, injection timing, and port-injected gasoline mass on nanoparticle emissions from a light-duty gasoline-diesel RCCI engine. The results show that changes in diesel injection pressure and timing have a significant impact on nanoparticle emissions, while increasing port fuel injected mass leads to higher particle concentration and unburned hydrocarbon emissions.
PARTICULATE SCIENCE AND TECHNOLOGY
(2021)
Article
Energy & Fuels
Gina M. Fioroni, Mohammad J. Rahimi, Charles K. Westbrook, Scott W. Wagnon, William J. Pitz, Seonah Kim, Robert L. McCormick
Summary: Utilizing kinetic simulations, the study predicted the research octane number (RON) of various synergistic blendstocks at different blend levels, with promising results for ethanol and DMF, but less satisfying results for 2MF and 2M2B. The predictions for prenol did not capture the synergistic blending behavior, indicating a lack of accurate low-temperature chemistry in the kinetic model.
Article
Engineering, Aerospace
Mujdat Firat, Sehmus Altun, Mutlu Okcu, Yasin Varol
Summary: The combustion characteristics of reactivity controlled compression ignition (RCCI) were investigated using iso-propanol, petroleum diesel, biodiesel, and their blends as fuels. The results showed that increasing the premixed ratio of low-reactivity fuel (iso-propanol) prolonged the ignition delay period, reduced the combustion duration and rate of pressure rise, leading to reduced NO emissions and smoke opacity. Iso-propanol and biodiesel blends demonstrated the best performance in RCCI mode.
PROPULSION AND POWER RESEARCH
(2022)
Article
Thermodynamics
Allen Parker, Shawn A. Reggeti, Joshua A. Bittle, Ajay K. Agrawal
Summary: This study investigates the effects of fuel properties on spray development and combustion by isolating chemical and thermophysical effects. The results show that fuels with similar chemical properties or cetane number (CN) exhibit similar delay times for ignition events, but have significant differences in liquid length, ignition location, lift-off length, turbulent flame speed, and soot formation. The ability to characterize candidate biofuels based on simple flame configurations is questioned. The study identifies thermophysical properties controlling the liquid length as the main contributing factor for the observed differences.
COMBUSTION AND FLAME
(2023)
Article
Engineering, Industrial
Xiaoping Xu, Yujing Chen, Ping He, Yugang Yu, Gongbing Bi
Summary: This paper investigates the cooperating mode selection problem of a manufacturer selling products through offline and online channels. The study finds that demand disruptions and cross-channel effects significantly influence the manufacturer's optimal operational decisions and platform mode selection. The presence of demand disruptions complicates the manufacturer's mode selection, and higher cross-channel effects can lead to increased production. Furthermore, demand disruptions have a significant impact on the profits of both the manufacturer and the platform.
INTERNATIONAL JOURNAL OF PRODUCTION RESEARCH
(2023)
Article
Nutrition & Dietetics
Mengying Qu, Siyuan Wan, Huaiyong Wu, Bingxuan Ren, Yao Chen, Lixiang Liu, Hongmei Shen
Summary: The present study aimed to explore the DNA methylation patterns in AIT patients and different iodine levels areas. The findings showed that DNA methylation levels of the DAPK1 gene were higher in AIT cases, and there were differences in methylation between cases and controls in different iodine levels areas. The results suggest that environmental iodine may affect DNA methylation to some extent.
BRITISH JOURNAL OF NUTRITION
(2023)
Article
Chemistry, Applied
Xia Wang, Youpeng Sun, Peixuan Li, Zhikai Wu, Yichun Chen, Yiwu Fu, Hanpeng Wu, Yingrong Ye, Jingjing Wang, Zhengtao Yang, Ershun Zhou
Summary: This study demonstrates that myricetin has protective effects against acute liver failure induced by lipopolysaccharide/D-galactosamine. Myricetin can reduce pathological changes, improve liver function, alleviate oxidative stress and inflammation. These protective effects may be mediated by regulating the Nrf2 signaling pathway.
NATURAL PRODUCT RESEARCH
(2023)
Article
Environmental Sciences
Dandan Wang, Peng Li, Lixiang Liu, Peng Liu, Zheng Zhou, Meihui Jin, Baoxiang Li, Fan Li, Yao Chen, Hongmei Shen
Summary: Iodine excess can directly and indirectly inhibit endothelial cell function, which may be associated with inflammatory response.
ENVIRONMENTAL TOXICOLOGY
(2023)
Article
Oncology
Zhaoping Zang, Yi Shao, Rena Nakyeyune, Yi Shen, Chen Niu, Lingyan Zhu, Xiaoli Ruan, Tong Wei, Ping Wei, Fen Liu
Summary: This study used the Mendelian randomization (MR) method to investigate the causal relationship between body mass index (BMI) and the risk of gastro-esophageal cancer. The results showed no evidence of a causal association between BMI and gastric or esophageal cancer. Sensitivity analysis and gender-stratified analysis also did not reveal any causal relationship evidence.
NUTRITION AND CANCER-AN INTERNATIONAL JOURNAL
(2023)
Article
Spectroscopy
Jin Wang, Xiao-Qin Yang, Na Li, Li-Li Wang, Xin-Ying Xu, Ce Zhang
Summary: A novel fluorescent probe L, composed of beta-Cyclodextrin (beta-CD) and thiosemicarbazide moieties, was designed for the detection of copper ions. The fluorescence of probe L was significantly quenched in the presence of Cu2+ in Tris-HCl (pH = 7.4) solution, while other interfering ions had no effect. The probe L formed a 1:1 complex with Cu2+ and the detection limit was calculated to be 1.37 µM. These results indicate that probe L may offer a convenient method for visual detection of Cu2+ in environmental and biological systems.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2023)
Article
Clinical Neurology
Hua Zhou, Fengliang Wu, Lei Dang, Yan Li, Xiaoguang Liu, Zhongjun Liu, Feng Wei
Summary: This study compared total en bloc spondylectomy with marginal margins to piecemeal spondylectomy with intralesional margins for the surgical treatment of Enneking stage III spinal giant cell tumor (GCT), focusing on local recurrence. The results showed that total en bloc spondylectomy had a lower recurrence rate and should be preferred over piecemeal spondylectomy.
EUROPEAN SPINE JOURNAL
(2023)
Article
Biochemistry & Molecular Biology
Chao Duan, Chaochao Tian, Guodong Tian, Xinqi Wang, Mengxia Shen, Shuo Yang, Yonghao Ni
Summary: In this study, a simultaneous microwave-assisted phosphotungstic acid (PTA) catalysis strategy was developed to improve the cellulose accessibility and reactivity in the dissolving pulp manufacturing. The MW-PTAsim treatment showed superior results compared to single MW treatment and sequential MW-PTAseq treatment in terms of reactivity and viscosity improvement.
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2023)
Article
Engineering, Environmental
Yuye Dou, Ning Liu, Xiangyi Zhang, Weiting Jiang, Xiaohui Jiang, Liangmin Yu
Summary: In this study, a simple green preparation method was designed to synthesize polymer-derived N,O-doped bowl-like hollow carbon microspheres (BHCMs) for enhanced electromagnetic wave absorption performance. BHCMs were fabricated using copolymerized microspheres of allyl methacrylate and acrylonitrile (P(AMA-AN)) synthesized through soap-free emulsion polymerization as a template and polydextrose as the carbon source. The unique structure of BHCMs-2 provides excellent electromagnetic wave attenuation and impedance-matching characteristics. The study proposes a new and green preparation method for carbon materials to improve their absorption properties.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Computer Science, Information Systems
Tingjun Zhang, Dong Yue, Liang Yu, Chunxia Dou, Xiangpeng Xie
Summary: This article investigates the fog-assisted operating cost minimization problem of multi-microgrid system (MMGS) and proposes an energy management algorithm based on multiagent deep reinforcement learning to solve the Markov game. Simulation results demonstrate the effectiveness of the proposed algorithm.
IEEE SYSTEMS JOURNAL
(2023)
Article
Chemistry, Physical
Tao Wang, Long Zhou, Shuwei Xia, Liangmin Yu
Summary: This study used grand canonical density functional theory (GC-DFT) and CANDLE continuum solvation model to accurately simulate the performance of Cobalt-doped phthalocyanine monolayer (Co-Pc) catalyst in electrochemical CO2 reduction. The calculation results were in excellent agreement with experimental values, explaining the competition between CO2 activation and hydrogen evolution reaction and predicting the potential determined step and onset potential. The study also revealed the potential-dependent competition between physical and chemical adsorption of CO2 and H formation, as well as the reason for high selectivity of CO2 reduction at a specific potential range.
JOURNAL OF PHYSICAL CHEMISTRY C
(2023)
Article
Engineering, Mechanical
Shichun Huang, Liang Yu, Weikang Jiang
Summary: This article introduces a method for mode identification of aero-engie fan noise and verifies its effectiveness through numerical simulations and experiments. The method uses iterative Bayesian focusing to solve the ill-posed problem in mode identification, and can accurately identify target modes when the number of microphones is much less than the number of modes.
MECHANICAL SYSTEMS AND SIGNAL PROCESSING
(2023)
Article
Optics
Tianyi Zhou, Wenxiao Fang, Guoguang Lu, Mingxu Yang, Fengli Liu, Xiaowei Yin, Wentao Qiu, Heyuan Guan, Huihui Lu, Huadan Zheng, Wenguo Zhu, Yongchun Zhong, Jianhui Yu, Zhe Chen
Summary: This paper presents a fiber end-face integrated lithium niobate (LN) crystal probe with a reflective design. The probe utilizes the pyroelectric and thermo-optic effects of LN to achieve a steep temperature response in a narrow range, which is ideal for temperature measurement applications. By mapping the ambient temperature to the output light using the polarization state modulation (PSM) method, the sensitivity of the probe reaches 5.37 K-1cm-1, 447 times higher than that of a polarization-maintaining fiber (PMF). The compact size and efficient light transmission make the probe suitable for various applications, including measuring core temperature and remote monitoring in the biological and industrial fields.
OPTICS AND LASER TECHNOLOGY
(2023)
Article
Energy & Fuels
Shijie Mi, Haoqing Wu, Xinzhe Pei, Chunyu Liu, Liang Zheng, Wenbin Zhao, Yong Qian, Xingcai Lu
Summary: Ammonia as a hydrogen carrier and carbon-free fuel is receiving more attention for reducing carbon emissions in transportation. Ammonia-diesel dual-fuel combustion mode is a potential way to achieve lower carbon emissions in compression ignition engines. However, NH3 and N2O emissions are challenges to reducing greenhouse gas emissions in this combustion mode.
Article
Obstetrics & Gynecology
Panpan Tang, Huixia Ye, Yingxiang Wang, Wenwei Li, Chenyi Liao, Xiaomao Li, Yuebo Yang
Summary: Through the study of ectopic cases at the third affiliated hospital of Sun Yat-Sen University, this research aims to analyze the indication and treatment outcome predictors of mifepristone. Data from 269 ectopic pregnancy cases treated with mifepristone during 2011-2019 were retrospectively collected. HCG was identified as the only factor related to the treatment outcome of mifepristone, with specific cutoff values and corresponding sensitivities and specificities.
ARCHIVES OF GYNECOLOGY AND OBSTETRICS
(2023)
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.