Article
Biotechnology & Applied Microbiology
Iara Barbosa Magalhaes, Alexia Saleme Aona de Paula Pereira, Thiago Abrantes Silva, Natalia dos Santos Renato
Summary: This study proposed equations to predict the higher heating value (HHV) of microalgae biomass based on proximate and ultimate analysis. The equation combining these analyses showed the highest statistical fit and accuracy.
ALGAL RESEARCH-BIOMASS BIOFUELS AND BIOPRODUCTS
(2022)
Article
Energy & Fuels
Joseph A. Oyebanji, Sunday O. Oyedepo, Olawumi T. Oyebanji, Alaba O. Araoyinbo, Oluwaseun Kilanko, Joseph O. Dirisu, Bahaa Saleh
Summary: Agro-waste disposal is a serious environmental problem in developing countries like Nigeria, but it is possible to produce sustainable energy from these biomass wastes. This study aimed to determine the higher heating value (HHV) of indigenous fuelwood sawdust and analyze the chemical composition of the pyrolysis yield products. The results showed that the selected fuelwoods have HHVs ranging from 19.80 to 21.02 MJ kg-1.
Article
Multidisciplinary Sciences
Lianjie Duan
Summary: This paper uses China's trade and production data from 2000 to 2006 to estimate the export cutoff productivity using the non-parametric ROC method. The results show variations in export cutoff productivity among domestic and foreign enterprises, different industries, and regions. The study also reveals a changing trend of the export threshold in a horizontal S-shape during the sample period and an inverted U-shape after China's accession to WTO in 2001.
Article
Mathematics, Applied
Pingping Zhang, Qun Wang
Summary: This paper investigates the MLSSTLS problem that combines MTLS and STLS problems, providing explicit expressions of the solution under certain conditions, conducting perturbation analysis and examining the condition numbers of the solution. Numerical experiments are performed to demonstrate the validity of the results, which can be connected to previously published findings on MTLS and STLS problems.
NUMERICAL ALGORITHMS
(2022)
Article
Spectroscopy
Huggins Z. Msimanga, Christopher R. Dockery, Deidre D. Vandenbos
Summary: This study investigated the class identification and prediction of physicochemical variables of eight diesel fuel brands using principal component analysis (PCA), partial least squares discriminant analysis (PLS2-DA), and partial least squares regression (PLSR). The results showed that the models were able to accurately identify the fuel brands and predict the physicochemical variables with high accuracy.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2022)
Article
Computer Science, Interdisciplinary Applications
Ji Hee Kim, Naeun Choi, Seongmin Heo
Summary: This work proposes a novel iterative least squares method to approximate nonlinear functions using constrained least squares to ensure continuity. The method improves upon the existing continuous piecewise linear (CPWL) method by modifying the main steps and employing partitioned least squares and constrained least squares to reduce computational complexity. An iterative procedure with gradient descent using momentum is used for breakpoint updates to improve convergence characteristics.
COMPUTERS & CHEMICAL ENGINEERING
(2022)
Article
Optics
Zhenyu Li, Hui Zhang, Binh Thi Thanh Nguyen, Shaobo Luo, Patricia Yang Liu, Jun Zou, Yuzhi Shi, Hong Cai, Zhenchuan Yang, Yufeng Jin, Yilong Hao, Yi Zhang, Ai-Qun Liu
Summary: The smart sensor achieves label-free multicomponent chemical analysis with a high prediction accuracy and simple detection strategy using a label-free ring resonator and neural network model, promising great potential for applications in various fields.
PHOTONICS RESEARCH
(2021)
Article
Automation & Control Systems
Lingling Lv, Jinbo Chen, Zhe Zhang, Baowen Wang, Lei Zhang
Summary: This paper presents a finite iterative algorithm for solving periodic coupled matrix equations, and proves the convergence of the algorithm through theoretical derivation. The algorithm is applicable to any initial value and has a wide range of applications.
JOURNAL OF THE FRANKLIN INSTITUTE-ENGINEERING AND APPLIED MATHEMATICS
(2021)
Article
Thermodynamics
A. C. (Thanos) Bourtsalas
Summary: In recent decades, environmental degradation has been caused by rising energy consumption, population growth, and material production. Utilizing the chemical energy in these materials through a circular economy can help mitigate these issues. This study explores the potential for energy recovery from biomass materials, polymers, and coal through combustion, gasification, and anaerobic treatment. Using thermodynamic principles, the researchers evaluate the limits and opportunities for sustainable energy recovery of 200 different materials, while also considering the heating value and compositional analyses. The study also estimates the potential products and environmental impacts of energy production from these materials. The findings suggest that despite lower heating value, biomass materials can significantly reduce carbon emissions. Biomass and polymer gasification show high potential due to their higher H2/CO ratios. Biomass combustion or gasification results in lower NOx and SOx emissions compared to polymers and coal. The evaluation shows that biomass gasification generates the lowest emissions per MJ.
Article
Agricultural Engineering
Youzhao Wang, Feng Ma, Tong Zhu, Zheng Liu, Yongguang Ma, Tengfei Li, Liying Hao
Summary: Composting with electric heating has been widely studied for its high treatment efficiency for sludge. This study investigated the effects of different electric heating methods on composting and found that electric heating promoted water evaporation and organic matter degradation. The optimal heating method for composting characteristics was identified. This work contributes to the understanding of the mechanism of electric heating promoting composting process and provides theoretical support for the engineering application of composting with electric heating.
BIORESOURCE TECHNOLOGY
(2023)
Article
Engineering, Electrical & Electronic
Abdul Wahab, Shujaat Khan, Imran Naseem, Jong Chul Ye
Summary: This article rigorously analyzes fractional learning algorithms, identifies key issues, and proposes solutions. Numerical experiments are conducted to verify the convergence and efficiency of fractional learning algorithms in stochastic environments. The conclusion is that fractional learning algorithms do not have an advantage over traditional least mean squares algorithms.
IEEE TRANSACTIONS ON SIGNAL PROCESSING
(2022)
Article
Energy & Fuels
Havva Yaka, Mert Akin Insel, Ozgun Yucel, Hasan Sadikoglu
Summary: Higher heating value (HHV) is an important parameter for energy efficiency, and this study used machine learning algorithms to estimate HHV for different fuel types, with performance evaluation and data analysis.
Article
Green & Sustainable Science & Technology
Abolfazl Sajadi Noushabadi, Amir Dashti, Farhad Ahmadijokani, Jinguang Hu, Amir H. Mohammadi
Summary: The utilization of biomass fuels as a potential renewable energy is favored for its advantages in sustainable economy and environment. Various accurate correlation methods like multivariate nonlinear regression and genetic algorithm-radial basis function are effective in estimating the higher heating value (HHV) of biomass fuels. The study provides reliable results that can be used by researchers to design and optimize biomass combustion systems.
Article
Green & Sustainable Science & Technology
So-Yeon Jeong, Eun-Ju Lee, Se-Eun Ban, Jae-Won Lee
Summary: Near infrared (NIR) spectroscopy is a rapid, accurate, and non-destructive method for analyzing biomass composition, but prediction accuracy varies for different biomass compositions. Different biomass particle sizes have statistically significant differences in NIR spectra based on root mean square values, and preprocessing methods do not significantly improve prediction accuracy.
Review
Energy & Fuels
Andrew P. Richards, Denver Haycock, Jacob Frandsen, Thomas H. Fletcher
Summary: Accurately measuring a fuel's heating value is crucial for classification, with various empirical correlations based on primary organic elemental composition available for predicting heating values. However, correlations for coal chars and tars are lacking, and the choice of model becomes more crucial for biomass fuels and unique fuel types like propellants and explosives.
Article
Engineering, Environmental
Ehsan Sarlaki, Mohammad Hossein Kianmehr, Marzieh Ghorbani, Ali Mashaallah Kermani, Keyvan Asefpour Vakilian, Irini Angelidaki, Yajing Wang, Vijai Kumar Gupta, Junting Pan, Meisam Tabatabaei, Mortaza Aghbashlo
Summary: A cost-effective and energy-efficient nitro-humification process was developed for nitrogen functionalization and activation of lignite humic substances. Different metrics were determined for the processed lignite including solubility, physicochemical properties, oxidation degree, nitrogen functionalization, spectral ratios, and surface functionalization. The process showed improved solubility, balanced nitrogen binding forms, and enhanced carbon and nitrogen content. It also increased cation exchange capacity, carboxylic and phenolic groups, crystallinity index, and availability of macromicronutrients and rare earth elements.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Engineering, Environmental
Fares Almomani, Homa Hosseinzadeh-Bandbafha, Mortaza Aghbashlo, Abdullah Omar, Sang-Woo Joo, Yasser Vasseghian, Hassan Karimi-Maleh, Su Shiung Lam, Meisam Tabatabaei, Shahabaldin Rezania
Summary: Microalgae can be grown using conventional water resources for food and feed applications, but can also be grown in nutrient-rich wastewater streams for biofuel production and wastewater treatment. This review discusses the applications of microalgae in food, feed, and wastewater treatment, as well as the efforts to utilize microalgal biomass for biofuel production through different pathways. However, challenges still exist in replacing traditional fossil fuels with microalgal biofuels.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Agricultural Engineering
Meysam Madadi, Mahdy Elsayed, Fubao Sun, Jing Wang, Keikhosro Karimi, Guojie Song, Meisam Tabatabaei, Mortaza Aghbashlo
Summary: A new cutting-edge lignocellulose fractionation technology was introduced using mannitol-assisted p-toluenesulfonic acid/pentanol pretreatment, resulting in the co-production of glucose, native-like lignin, and furfural. The addition of 5% mannitol increased delignification rate, surface area, biomass porosity, and glucose yield. The extracted lignin exhibited properties of native cellulosic enzyme lignin and the solubilized hemicellulose was converted into furfural. This waste-free biorefinery pathway contributes to a circular bioeconomy.
BIORESOURCE TECHNOLOGY
(2023)
Review
Biochemistry & Molecular Biology
Yadong Yang, Mortaza Aghbashlo, Vijai Kumar Gupta, Hamid Amiri, Junting Pan, Meisam Tabatabaei, Ahmad Rajaei
Summary: Large amounts of agricultural waste, especially marine product waste, are produced annually. These wastes can be used to produce valuable compounds like chitosan, which has various biological activities. Essential oils have also been studied for their biological properties, and recent research has focused on using essential oils encapsulated in chitosan nanocarriers to enhance the antimicrobial activity of chitosan nanoparticles. This review provides an overview of recent studies on the biological effects of essential oils encapsulated in chitosan nanocarriers.
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2023)
Review
Green & Sustainable Science & Technology
Alireza Shafizadeh, Hajar Rastegari, Hossein Shahbeik, Hossein Mobli, Junting Pan, Wanxi Peng, Guihua Li, Meisam Tabatabaei, Mortaza Aghbashlo
Summary: The use of nanomaterials in biomass pyrolysis is thoroughly reviewed in this article. Nanocatalysts not only reduce the complexity and cost of bio-oil upgrading, but also improve the quality and quantity of bio-oil compared to bulk catalysts. The effects of catalysts, biomass decomposition pathways, and product distribution patterns in nanocatalyst-assisted pyrolysis are explained, and the pros and cons of using nanocatalysts in the biomass pyrolysis process are discussed.
JOURNAL OF CLEANER PRODUCTION
(2023)
Article
Agricultural Engineering
Meysam Madadi, Dan Liu, Yuanhang Qin, Yinchao Zhang, Keikhosro Karimi, Meisam Tabatabaei, Vijai Kumar Gupta, Mortaza Aghbashlo, Sameh Samir Zahoor, Sameh Samir Ali
Summary: This study aims to develop an integrated pretreatment technology for the complete conversion of poplar biomass to XOS, glucose, and native-like lignin, using TsOH-catalyzed LHW and short-time ball milling. The optimized TsOH-catalyzed LHW pretreatment solubilized 98.5% of hemicellulose, releasing 49.8% XOS. Subsequent ball milling improved the enzymatic hydrolysis of cellulose and reduced crystallinity. This research proposes a sustainable waste-free biorefinery for biomass valorization.
BIORESOURCE TECHNOLOGY
(2023)
Review
Biotechnology & Applied Microbiology
Hamed Kazemi Shariat Panahi, Mona Dehhaghi, Hamid Amiri, Gilles J. Guillemin, Vijai Kumar Gupta, Ahmad Rajaei, Yadong Yang, Wanxi Peng, Junting Pan, Mortaza Aghbashlo, Meisam Tabatabaei
Summary: The article introduces the importance of chitosan and its derivative chitin in biomaterials, particularly in terms of their antimicrobial, antioxidant, and anticancer activities. The article also points out some drawbacks in the structure of chitosan and discusses a modification method using lactose and galactose as main raw materials to prepare soluble branched chitosan.
BIOTECHNOLOGY ADVANCES
(2023)
Article
Green & Sustainable Science & Technology
Alireza Shafizadeh, Hossein Shahbeik, Mohammad Hossein Nadian, Vijai Kumar Gupta, Abdul-Sattar Nizami, Su Shiung Lam, Wanxi Peng, Junting Pan, Meisam Tabatabaei, Mortaza Aghbashlo
Summary: This study develops a machine learning-based research framework for modeling, understanding, and optimizing the catalytic steam reforming of volatile matter compounds. Chemical/ textural analyses are used to obtain input features, and ensemble machine learning provides the best prediction performance for toluene conversion and product distribution. The framework can expedite the search for optimal catalyst characteristics and reaction conditions.
JOURNAL OF CLEANER PRODUCTION
(2023)
Article
Green & Sustainable Science & Technology
Mohammad Mahdi Ahmadi, Homa Hosseinzadeh-Bandbafha, Quang Dung Le, Thien Khanh Tran, Mhd Ikhwanuddin, Su Shiung Lam, Pham Phu Truong, Wanxi Peng, Nguyen Hong Quan, Mortaza Aghbashlo, Meisam Tabatabaei
Summary: In this study, a multi-approach framework is proposed for developing feasible, viable, and sustainable hybrid energy systems in remote areas. A case study on Con Dao Island in Vietnam shows that an off-grid hybrid energy system consisting of photovoltaics, wind turbines, lead-acid batteries, and diesel generators has the lowest net present cost, while an on-grid hybrid energy system with a high level of photovoltaics and wind turbines performs the best in terms of eco-friendliness.
JOURNAL OF CLEANER PRODUCTION
(2023)
Review
Green & Sustainable Science & Technology
Hossein Shahbeik, Alireza Shafizadeh, Vijai Kumar Gupta, Su Shiung Lam, Hajar Rastegari, Wanxi Peng, Junting Pan, Meisam Tabatabaei, Mortaza Aghbashlo
Summary: The unfavorable properties of biomass pyrolysis bio-oil require physical/thermochemical methods to enhance its quality. Nanotechnology offers potential solutions to overcome the drawbacks of conventional catalysts used in bio-oil upgrading. This article provides a comprehensive overview of the application of nanocatalysts in bio-oil upgrading, including their mechanisms and effects on important operating parameters. Nanocatalysts have been shown to yield higher bio-oil quality and have advantages over bulk catalysts. However, more research and development are needed before nanocatalysts can be fully realized in practical applications.
JOURNAL OF CLEANER PRODUCTION
(2023)
Article
Chemistry, Multidisciplinary
Meysam Madadi, Guojie Song, Vijai Kumar Gupta, Mortaza Aghbashloh, Chihe Sun, Fubao Sun, Meisam Tabatabaei
Summary: This study demonstrated that post-incubation with non-catalytic proteins (AP, SP, and BSA) can effectively detoxify the inhibitory compounds in dilute acid pretreated biomass, leading to improved enzymatic digestibility.
Article
Environmental Sciences
Zahra Fardi, Hossein Shahbeik, Mohsen Nosrati, Ehsan Motamedian, Meisam Tabatabaei, Mortaza Aghbashlo
Summary: Waste-to-energy conversion is a key strategy for addressing the energy crisis and environmental pollution. This study explores the co-pyrolysis of terrestrial biomass and marine biomass to optimize the production of bio-oil and biochar. The results show that the mixed samples result in increased bio-oil yield, with the highest yield achieved in a composition of 75% potato peel and 25% Sargassum angastifolium. The analysis of the pyrolysis products indicates favorable characteristics for the generation of biofuels and value-added commodities.
ENVIRONMENTAL RESEARCH
(2024)
Article
Chemistry, Multidisciplinary
Ehsan Sarlaki, Mohammad Hossein Kianmehr, Ali-mashaallah Kermani, Marzieh Ghorbani, Majid Ghorbani Javid, Meisam Rezaei, Wanxi Peng, Su Shiung Lam, Meisam Tabatabaei, Mortaza Aghbashlo, Xiangmeng Chen
Summary: This study investigates the use of lignite waste as a carrier matrix for creating engineered nitro-humic fertilizer (NHF) through an innovative ozone oxidation method and nitrogen enrichment. The NHF exhibited superior nitrogen use efficiency and agronomic fertilizer efficiency compared to urea and even surpassed commercial NPK fertilizers. Applying NHF improved multiple aspects of maize growth and had a remarkable capability to increase waterholding capacity and extend the water-retention period in soil.
SUSTAINABLE CHEMISTRY AND PHARMACY
(2023)
Review
Green & Sustainable Science & Technology
Mohammadali Kiehbadroudinezhad, Homa Hosseinzadeh-Bandbafha, Marc A. Rosen, Vijai Kumar Gupta, Wanxi Peng, Meisam Tabatabaei, Mortaza Aghbashlo
Summary: This article discusses the importance of green microgrids in mitigating risks and climate change by providing carbon-free power. It highlights the challenges faced by clean energy systems and the potential of green microgrids in remote areas. The article emphasizes the significance of transitioning to green microgrids to achieve sustainable and clean power while reducing the adverse environmental impacts of conventional energy sources.
SUSTAINABLE ENERGY TECHNOLOGIES AND ASSESSMENTS
(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.