Article
Chemistry, Physical
Guowei Lyu, Chen Zhong, Xiaolong Gou
Summary: This paper proposes a pressure-ratio equivalent (PRE) method for studying hydrogen leakage spontaneous ignition. The results show that the PRE method can largely retain the ignition characteristics of hydrogen leakage spontaneous ignition within a certain range. Additionally, the experiments also reveal the risk of spontaneous ignition of syngas from high-pressure leakage when the storage pressure is high enough.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2022)
Article
Engineering, Aerospace
Ghazanfar Mehdi, Sara Bonuso, Maria Grazia De Giorgi
Summary: This study focuses on the experimental and numerical characterization of flow dynamics and flame re-ignition in aeroengines under high altitude conditions. The results show that plasma discharge induces flow, improving mixing performance and reducing ignition delay time. Numerical simulations also demonstrate that plasma actuation can significantly reduce ignition time under low pressure and low temperature conditions.
Article
Thermodynamics
Rhoda Afriyie Mensah, Lin Jiang, Julianna Sally Renner, Qiang Xu
Summary: Wood, as the most useful and readily available natural raw material, faces a crucial challenge in terms of its susceptibility to fire. This article provides a comprehensive overview of the flammability stages of wood and examines various factors affecting its fire behavior, making it a one-stop-shop for researchers analyzing wood flammability.
JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY
(2023)
Article
Ecology
Oleg Matvienko, Denis Kasymov, Egor Loboda, Anastasia Lutsenko, Olga Daneyko
Summary: This study investigates the effect of firebrand characteristics on wood ignition behavior through mathematical modeling and laboratory experiments. The results show that the increase in wind speed leads to an increase in the probability of wood ignition, and the size and quantity of firebrands also play a role in the ignition process.
Article
Chemistry, Physical
Kaiyan Jin, Liang Gong, Xianwen Zheng, Yifei Han, Qiangling Duan, Yuchun Zhang, Jinhua Sun
Summary: This investigation visualizes the spontaneous ignition conditions of high-pressure hydrogen during its sudden release into a tube and studies their characteristics and mechanisms. Four ignition conditions are observed, and the critical burst pressure is determined.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2023)
Article
Agricultural Engineering
Nattawut Setkit, Xian Li, Hong Yao, Nakorn Worasuwannarak
Summary: The study demonstrates that torrefaction under mechanical pressure can significantly increase the char yield of Leucaena and reduce the oxygen content in biochar. Analysis of the pyrolysis products reveals differences in composition and properties between biochar prepared under mechanical pressure and the raw state.
BIORESOURCE TECHNOLOGY
(2021)
Article
Energy & Fuels
Christoph Preimesberger, Axel Solt-Rindler, Christian Hansmann, Christoph Pfeifer
Summary: This experiment studied the influence of size and temperature on the heating and auto-ignition of beech and spruce wood cubes. The experiments were conducted at five isothermal temperatures with four cube sizes, and temperature curves, mass-losses, and exothermic reactions were compared. The results showed that heating up isothermal phases at approximately 360 degrees Celsius were observed due to ongoing pyrolysis, and after pyrolysis, a combination of internal heating and heterogenous oxidation reactions on the surface lead to ignition and combustion. Differences in chemical composition and sample size affected the ignition temperature.
Article
Energy & Fuels
Chuntima Chunti, Nakorn Worasuwannarak
Summary: This study investigates the effect of pressurized torrefaction on bio-oil properties at 250 degrees C, using both gas-pressurized and mechanical pressure methods. Gas-pressurized torrefaction enhances deoxygenation reactions and decreases the O/C atomic ratio, while mechanical pressure torrefaction promotes cross-linking reactions. Gas-pressurized torrefaction at 4 MPa achieves a 46.0% reduction in oxygen content, but with a lower bio-oil yield compared to mechanical pressure torrefaction at 40 MPa. These findings provide important information for the development of pyrolysis polygeneration from pressurized torrefied biomass.
BIOMASS CONVERSION AND BIOREFINERY
(2023)
Article
Chemistry, Analytical
William de Rezende Locatel, Chetna Mohabeer, Dorothee Laurenti, Yves Schuurman, Nolven Guilhaume
Summary: This paper investigates the catalytic co-pyrolysis of beech wood and polyamide-6 to examine the effects of polyamide-6 concentration on the bio-oil properties and catalyst performance. The results show that increasing polyamide-6 concentration leads to higher average molar mass and nitrogen content in the bio-oils, while reducing the production of fully deoxygenated compounds. Synergistic effects are observed in the co-pyrolysis process.
JOURNAL OF ANALYTICAL AND APPLIED PYROLYSIS
(2022)
Article
Energy & Fuels
Christoph Preimesberger, Maximilian Wondrak, Axel Solt-Rindler, Christoph Pfeifer, Christian Hansmann
Summary: In this study, the influence of the size of spherical wood samples and the temperature surrounding the samples on auto-ignition was investigated. The results showed that larger samples and higher temperatures were more prone to auto-ignition due to increased surface area and internal overheating. Comparison of different wood species found that size played a critical role in auto-ignition.
BIOMASS CONVERSION AND BIOREFINERY
(2023)
Article
Engineering, Environmental
Ping Li, Qian Zeng, Qiangling Duan, Jinhua Sun
Summary: This study investigates the effects of triangle obstacles inside the tube on the ignition mechanism and flame development during high-pressure hydrogen release. The presence of obstacles is found to influence the flame structure and propagation, but does not exacerbate disasters in semi-confined spaces.
PROCESS SAFETY AND ENVIRONMENTAL PROTECTION
(2021)
Article
Chemistry, Physical
Qiangling Duan, Yunfan Wu, Guangbo Jiang, Jing Tang, Qian Zeng, Songlin Zhang, Kaiqiang Jin, Jiayan Chen, Jinhua Sun
Summary: This experimental study investigates the spontaneous ignition of high-pressure hydrogen released into a tube through inlets with different narrowness. The results show that narrow inlets weaken the shock wave intensity and speed, and increase the minimum burst pressure required for spontaneous ignition. Additionally, narrow inlets enhance the intensity and speed of the ignition flame.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2023)
Article
Chemistry, Physical
Kaiyan Jin, Shengnan Yang, Liang Gong, Tianyu Mo, Yunji Gao, Yuchun Zhang
Summary: This paper conducts a numerical study to reveal the mechanism of spontaneous ignition of high-pressure hydrogen inside a tube with local contraction. The study finds that shock wave reflection and interaction are key factors leading to spontaneous ignition, and the presence of more flammable mixture inside the contraction part also plays a promoting role.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2022)
Article
Energy & Fuels
Martin Bolla, Mate Papp, Carsten Olm, Hannes Boettler, Tibor Nagy, Istvan Gy. Zsely, Tamas Turanyi
Summary: A detailed analysis of 24 butanol combustion mechanisms published between 2008 and 2020 was conducted using comprehensive experimental data. The best mechanism for n-butanol combustion was found to be CRECK 2020, while Sarathy 2014, Vasu 2013, and Yasunaga 2012 (in order) were the best mechanisms considering all isomers. Suggestions for improving the Sarathy 2014 mechanism were provided through sensitivity analysis and simulation improvements.
Article
Engineering, Chemical
Liju Zheng, Yuan Yu, Jie Yang, Qingwu Zhang, Juncheng Jiang
Summary: Experimental study shows that melamine polyphosphate (MPP) has the best inhibiting effect on the ignition sensitivity of wood dust, leading to lower fire risk and improved production safety.
JOURNAL OF LOSS PREVENTION IN THE PROCESS INDUSTRIES
(2021)
Article
Mathematics, Applied
Peiping Shen, Dianxiao Wu, Yafei Wang
Summary: In this paper, a spatial branch-and-bound algorithm with an adaptive branching rule is proposed to solve the linear multiplicative programming (LMP) problem. The algorithm transforms the LMP problem into an equivalent problem and introduces a novel reformulation to convert nonconvex constraints into differences of square terms form. By using an adaptive branching rule and iteratively refining the piecewise linear approximations, the LMP problem is solved through a series of second order cone relaxations (SOCR). Preliminary numerical results show that the proposed algorithm efficiently finds the global optimal solutions for test instances.
JOURNAL OF COMPUTATIONAL AND APPLIED MATHEMATICS
(2023)
Article
Environmental Sciences
Liwei Meng, Xue Han, Lian Yu, Yafei Wang
Summary: The PdAg/Al2O3 catalyst was pretreated by CO and H-2 reduction methods. The CO reduction pretreatment was found to be more suitable for PdAg/Al2O3 and had a positive effect on the catalytic performance.
JOURNAL OF ENVIRONMENTAL SCIENCES
(2023)
Article
Engineering, Civil
Wei Zhu, Ou Zhou, Yiming Sun, Ximeng Li, Nan Di, Doudou Li, Gulimire Yilihamu, Yafei Wang, Jingyi Fu, Benye Xi, Liming Jia
Summary: Severe soil desiccation in mature forests has been discovered in many water-stressed regions around the world, threatening sustainable forest development. Only by understanding fine root distributions and root water uptake patterns of different forest stands can we timely deal with the severe water stress in tree growth.
JOURNAL OF HYDROLOGY
(2023)
Article
Construction & Building Technology
Jin-Cheng Yu, Ting-Hua Yi, Song-Han Zhang, Hong-Nan Li, Ya-Fei Wang, Xiu-Dao Mei
Summary: This paper uses computer vision technology to quantitatively identify bridge surface cracks for quick bridge condition assessment or maintenance. A classification model is trained based on deep learning to discriminate the surface pattern type of bridges. Then, classification and segmentation models are used to identify the location and profile of the crack in the image. Finally, crack identification is realized in high-resolution bridge surface images with multiclass features.
JOURNAL OF PERFORMANCE OF CONSTRUCTED FACILITIES
(2023)
Article
Engineering, Electrical & Electronic
Yucheng Zhao, Haoran Geng, Jun Liang, Yafei Wang, Long Chen, Linhao Xu, Wanjia Wang
Summary: This study investigates the effects of driver response time on traffic flow by establishing a CAR-ToC model and proposing a quantification method of driver's situation cognition uncertainty. The results show that the optimal traffic state is achieved when the driver response time in ToC is 4.2 s, and the stop-and-go waves become more prominent with longer response time. Furthermore, crashes occur when manual vehicles collide with other types of vehicles in ToC. The findings highlight the importance of considering driver response time in human-machine interaction for enhancing road efficiency and safety.
AUTOMOTIVE INNOVATION
(2023)
Article
Engineering, Environmental
Jiahao Dong, Yan Kang, Shaoping Kuang, Haoqin Ma, Mei Li, Jingqian Xiao, Yafei Wang, Zizhang Guo, Haiming Wu
Summary: Microplastics and polycyclic aromatic hydrocarbons (PAHs) have negative effects on invertebrates and microbes in aquatic environments. The addition of different particle sizes of microplastics and typical PAHs exacerbated oxidative damage and affected the degradation of phenanthrene in Tubifex tubifex and sediment. These findings contribute to the risk assessment of PAHs and microplastics in aquatic environments.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Engineering, Environmental
Mengmeng Wang, Yafei Wang, Yingchun Li, Chenhao Wang, Shaoping Kuang, Peng Ren, Binghan Xie
Summary: In order to reduce the negative impact of antibiotics and antibiotic resistance genes (ARGs) on the environment, this study used iron-loaded biochar (Fe-LBH) as an activator in a persulfate (PDS) oxidation system to degrade tetracycline (TC), inactivate antibiotic resistant bacteria (ARB), and remove ARGs. The Fe-LBH-PDS system showed efficient removal of TC (more than 85%) within 30 minutes, higher than the pristine biochar-PDS system (15.5%). In addition, it was found that Fe (II) and oxygen functional groups played important roles in the PDS activation process.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Neurosciences
Huiqing Hou, Yafei Wang, Lan Yang, Yongjun Wang
Summary: This study demonstrates that fibrinogen deposition inhibits remyelination after ischemic stroke by activating ACVR1 and suppressing OPC differentiation. It also reveals that NSC-derived exosomal miR-128-3p promotes OPC differentiation into OLs by inhibiting BMP signaling. These findings suggest that NSC-derived exosomal miR-128-3p may serve as a potential therapeutic target for ischemic stroke.
CNS NEUROSCIENCE & THERAPEUTICS
(2023)
Review
Food Science & Technology
Rongrong Xia, Zhenshan Hou, Heran Xu, Yunting Li, Yong Sun, Yafei Wang, Jiayi Zhu, Zijian Wang, Song Pan, Guang Xin
Summary: This review analyzes the global trends of increasing production and consumption of edible mushrooms and emphasizes the need for effective preservation and intelligent evaluation technologies. It summarizes the effects of various chemical and physical treatments on the quality of fresh mushrooms and discusses emerging evaluation techniques based on chemometric methods and computer vision system. The optimization of preservation technology and dynamic quality evaluation are vital for mushroom quality control.
CRITICAL REVIEWS IN FOOD SCIENCE AND NUTRITION
(2023)
Article
Thermodynamics
Xinglan Hou, Xiuping Zhong, Shuaishuai Nie, Yafei Wang, Guigang Tu, Yingrui Ma, Kunyan Liu, Chen Chen
Summary: In this study, the feasibility of intermittent heat extraction in U-shaped Closed-Loop Geothermal Systems (UCLGS) for the development of Hot Dry Rock (HDR) was investigated. The reservoir temperature response characteristics and ground temperature recovery law during the production process were analyzed in detail. Factors affecting the duration of intermittent heat extraction cycle were explored. Finally, the performance and production characteristics of continuous and intermittent heat extraction were compared and evaluated.
Article
Engineering, Civil
Guang-Ming Wu, Sheng-Li Li, Ting-Hua Yi, Xiu-Dao Mei, Ya-Fei Wang
Summary: The position of the neutral axis is affected by changes in the cross-sectional area and stiffness of bridge girders, as well as the temperature. In this study, simplified theoretical models were established to analyze the relationship between the position of the neutral axis and structural temperature for both conventional and composite girders. The results were validated using model girders with different temperature gradients and thermal coefficients. The findings indicate that the neutral axis position is influenced by various factors, such as temperature gradients, weighted-average temperature, thermal coefficients, and girder height. The variation in the neutral axis position due to temperature cannot be ignored in detecting minor damage to bridge girders.
ENGINEERING STRUCTURES
(2023)
Article
Oncology
Ze Zhang, Tianyu Jiao, Junfeng Li, Bingyang Hu, Wenwen Zhang, Zhijun Wang, Tao Wan, Yafei Wang, Shichun Lu
Summary: This study aimed to explore the potential efficacy of treatment based on TKIs in combination with PD-1 inhibitors for unresectable recurrent HCC. The results showed that the combination therapy of TKIs and PD-1 inhibitors can significantly prolong the survival of patients.
WORLD JOURNAL OF SURGICAL ONCOLOGY
(2023)
Correction
Neurosciences
Lijuan Zhang, Yafei Wang, Taohui Liu, Ying Mao, Bo Peng
NEUROSCIENCE BULLETIN
(2023)
Article
Environmental Sciences
Xingjiao Yu, Long Qian, Wen'e Wang, Xuefei Huo, Xiaotao Hu, Yafei Wang
Summary: The study evaluates the accuracy of reference evapotranspiration (ET0) estimated by CLDAS and ERA5 reanalysis products, as well as the quality of reanalysis weather variables required for calculating PM-ET0. Surface meteorological elements from ERA5 and CLDASV2.0 datasets are compared with local observations from 689 stations in China. The accuracy is assessed using statistics such as percent bias, coefficient of determination, root mean square error, and mean absolute error. The results show relatively high accuracy for reanalysis temperature, while overestimation is observed for solar radiation and underestimation for relative humidity. Wind speed reanalysis has relatively low accuracy. Both reanalysis products provide acceptable ET0 estimates in China, but CLDAS shows higher spatial and temporal consistency with site observations, as well as better description of boundary details.
Article
Construction & Building Technology
Huadong Sun, Laixue Pang, Yongling Ding, Baodong Xing, Yijun Tang, Xin Sun, Jiacheng Yuan, Liang Zhou, Yafei Wang, Yuchao Lyu, Fei Sha
Summary: This paper investigates the physical and morphological indexes of limestone mineral filler and their influence on the interfacial performances between asphalt and filler. The improved characterization methods reveal that the role of filler particles in terms of density, porosity, aspect ratio, angularity indices, fractal dimension, and feature roughness show a decreasing trend with smaller particle sizes, while the specific surface area and shape factor display an opposite trend. The analysis of limestone filler morphology demonstrates its effect on asphalt-filler interaction based on viscoelastic parameters and theoretical models. The observations emphasize the significance of selecting suitable mineral fillers for superior asphalt cementing-filling systems.
CONSTRUCTION AND BUILDING MATERIALS
(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.
