Article
Energy & Fuels
Hongyu Lu, Shixiang Liu, Jiang Lv, Xin Li, Michael A. Delichatsios, Longhua Hu
Summary: This work investigates the flame geometrical characteristics of vertical downward turbulent jet fires in still air. The study proposes a new physical model and conducts CFD simulation to show the combustion structure. The research reveals the inner flow field and average mixture fraction of a downward jet fire and validates the CFD result with experimental data. It also discusses the differences between downward, upward, and horizontal jet fires and presents a physical model considering the initial downward momentum, flame buoyancy, and air entrainment.
Article
Energy & Fuels
Xia Shi, Kuibin Zhou
Summary: This paper presents an experimental investigation on the interaction of double turbulent jet flames with different spacings. It is found that flame buoyancy, exit momentum, and nozzle spacing significantly affect the flame merging behavior. A new dimensionless parameter is proposed to describe the merging probability of double jet flames dominated by flame buoyancy and exit momentum. A correlation is developed to predict the mean flame height of double jet fires.
Article
Energy & Fuels
Taiyu Wang, Zhenguo Wang, Jianguo Tan, Mingbo Sun, Zun Cai, Yao Liu
Summary: This study investigated the combustion characteristics of a highly-turbulent premixed jet flame influenced by a confined space. The results showed that the flame characteristics at different distances were comprehensively investigated, and a critical value for flame extinction was identified. The flame structures were classified into V-shaped flame, converging flame, and fully developed flame. The presence of intense combustion regions related to CH* and OH* reactions was observed in the confined space.
Article
Thermodynamics
Jiarui Zhang, Zhixun Xia, Likun Ma, Liya Huang, Yunchao Feng, Dali Yang
Summary: Experimental investigation was conducted on the aluminum particles turbulent jet flame in this study. The results showed that aluminum particles need to be heated within a certain distance to ignite, and the flame structure can be divided into preheating zone, flame zone, and burnout zone. Increasing the oxidizing ability can significantly improve the flame temperature and reduce the lift-off height and visible length of the flame.
Article
Thermodynamics
Jiao Lei, Zhihui Liu, Pengcheng Huang, Linhe Zhang, Naian Liu
Summary: This paper presents a combined experimental and analytical study to investigate the formation and flame geometry of turbulent cylindrical fire whirls. Two mathematical models have been derived to predict the flame height and width. The decrease in flame height and increase in flame width are attributed to the enhanced turbulence level induced by flow instability.
COMBUSTION AND FLAME
(2023)
Article
Chemistry, Physical
Weijie Zhang, Jinhua Wang, Wenjun Lin, Guohua Li, Zhiyun Hu, Meng Zhang, Zuohua Huang
Summary: An experimental study investigates the effects of hydrogen enrichment and differential diffusion on flame broadening, specifically focusing on turbulent lean premixed flames in the BP-TR regime. The results demonstrate that the preheat zone can expand and the heat release layer can thin due to hydrogen addition. However, the mean heat release thickness is not significantly affected by turbulence or hydrogen enrichment.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2021)
Article
Thermodynamics
Jiao Lei, Pengcheng Huang, Naian Liu, Linhe Zhang
Summary: This study investigates the effect of imposed circulation on the flame width of turbulent fire whirls and finds that the circulation strongly restricts flame pulsations in fire whirls compared to free buoyant flames. A semi-physical model is developed to describe the relationship between mean flame width and factors such as heat release rate and turbulence viscosity parameter.
COMBUSTION AND FLAME
(2022)
Article
Energy & Fuels
Gyu Jin Hwang, Dong Seok Jeon, Nam Il Kim
Summary: The effects of pressure on the characteristics of propane flame were examined, and it was found that extending the pressure range allows for more precise and abundant experimental results, revealing the general features of flame structures and explaining the non-monotonic variation in flame height and variations in flame structure during the transition from laminar lifted flame to turbulent lifted flame.
Article
Engineering, Chemical
Praveen Vijayan, Gireesh Kumaran Thampi, Pushpendra K. Vishwakarma, Adriana Palacios
Summary: This study investigates the relationship between the geometry of jet flames and the ambient conditions. The results show that reduced pressure leads to longer flame lengths and larger flame areas.
JOURNAL OF LOSS PREVENTION IN THE PROCESS INDUSTRIES
(2022)
Article
Thermodynamics
Michael Severin, Oliver Lammel, Wolfgang Meier
Summary: A preheated premixed CH4/air jet flame was studied in an optically accessible rectangular combustion chamber to understand flame stabilization and expansion mechanisms. A lateral recirculation zone formed in the combustion chamber due to the off-center position of the jet, stabilizing the lifted flame. Measurements of the flow field, OH concentration, and heat release provided insights into the interaction between the flow field and the flame.
COMBUSTION AND FLAME
(2022)
Article
Engineering, Chemical
Vahid Foroughi, Adriana Palacios, Carlos Barraza, Alba Agueda, Christian Mata, Elsa Pastor, Joaquim Casal
Summary: This study presents the results of jet fire impingement on pipes, discussing the temperature changes and heat flux effects on pipes containing air and water under flame exposure. The experiments emphasized the importance of safe distances for pipeline safety, along with fire proofing and other safety measures.
JOURNAL OF LOSS PREVENTION IN THE PROCESS INDUSTRIES
(2021)
Article
Thermodynamics
Ignacio Trueba-Monje, Jeffrey A. Sutton
Summary: High-resolution and high SNR planar Rayleigh scattering thermometry measurements were used to investigate preheat and reaction zone broadening, turbulent transport of high-temperature gases, and the internal flame structure in highly turbulent jet flames. The results showed significant broadening of the preheat and thermal layers, as well as moderate broadening of the reaction layer. The statistics of temperature and scalar dissipation rate indicated a shift towards higher temperatures and increased strain on the primary reaction zone and flame front under higher turbulence levels.
COMBUSTION AND FLAME
(2023)
Article
Thermodynamics
Dong Seok Jeon, Gyu Jin Hwang, Hye Jin Jang, Nam Il Kim
Summary: This study estimated lift-off heights of lifted flames based on variations in fuel tube diameter, fuel jet velocity, and methane/propane proportions, with improved flow rate relationships proposed in external mixing and fully turbulent regimes. The blowout mechanism was explained using turbulent intensity, and an overall diagram showing various stabilization mechanisms of lifted flames was presented.
COMBUSTION AND FLAME
(2022)
Article
Engineering, Environmental
Yue Wu, Xing Yu, Zongcheng Wang, Hao Jin, Yanqiu Zhao, Changjian Wang, Zhihe Shen, Yi Liu, Wei Wang
Summary: Hydrogen has gained attention worldwide for its zero pollution and recycling potential, but its flammability range and low ignition energy can pose safety problems such as hydrogen jet fire. To explore methods of preventing hydrogen jet fire, experiments were conducted to study flame behavior under the influence of nitrogen and carbon dioxide jets as fire extinguishing agents. Results showed that decreasing the installation height of the extinguishing agent nozzle led to an increase in the reduction ratio of vertical flame length, indicating the potential extinguishing effect when the agent is injected at the root of the hydrogen jet flame. Additionally, the thermal radiant flux and total heat flux received by the flame were analyzed, as well as the extinguishing limits of hydrogen jet flame under the effects of nitrogen and carbon dioxide jets.
PROCESS SAFETY AND ENVIRONMENTAL PROTECTION
(2022)
Article
Thermodynamics
Zhenhua Tang, Zhirong Wang, Kun Zhao
Summary: This study investigates the flame stabilization characteristics of nitrogen-diluted hydrogen jet flames and proposes prediction models for flame lift-off distance and blowout limit.
Article
Engineering, Chemical
Mario E. Cordero, Sebastian Uribe, Luis G. Zarate, Jose A. Hernandez-Servin, Ever Peralta Reyes, Alejandro Regalado-Mendez, Reyna Natividad
INTERNATIONAL JOURNAL OF CHEMICAL REACTOR ENGINEERING
(2017)
Article
Engineering, Chemical
Sebastian Uribe, Mario E. Cordero, Luis G. Zarate, Jose Javier Valencia Lopez, Reyna Natividad
CANADIAN JOURNAL OF CHEMICAL ENGINEERING
(2019)
Article
Engineering, Chemical
Alejandro Regalado-Mendez, Juan Mentado-Morales, Carlos Estrada Vazquez, Gerardo Martinez-Villa, Mario E. Cordero, Luis G. Zarate, Sigurd Skogestad, Ever Peralta-Reyes
INTERNATIONAL JOURNAL OF CHEMICAL REACTOR ENGINEERING
(2018)
Article
Electrochemistry
Ever Peralta, Martin Ruiz, Gerardo Martinez, Juan Mentado-Morales, Luis G. Zarate, Mario E. Cordero, Marco A. Garcia-Morales, Reyna Natividad, Alejandro Regalado-Mendez
INTERNATIONAL JOURNAL OF ELECTROCHEMICAL SCIENCE
(2018)
Article
Chemistry, Applied
Mario E. Cordero, Reyna Natividad, Luis G. Zarate, J. A. Hernandez-Servin, Jesus Salas
Article
Engineering, Civil
Mercedes Gomez-Mares, Luis Zarate, Joaquim Casal
FIRE SAFETY JOURNAL
(2008)
Article
Engineering, Civil
Luis Zarate, Josep Arnaldos, Joaquim Casal
FIRE SAFETY JOURNAL
(2008)
Article
Energy & Fuels
Sebastian Uribe, Mario E. Cordero, Ever Peralta Reyes, Alejandro Regalado-Mendez, Luis G. Zarate
Article
Chemistry, Multidisciplinary
Alejandro Regalado-Mendez, Abril Cruz-Lopez, Juan Mentado-Morales, Mario E. Cordero, Luis G. Zarate, Martin R. Cruz-Diaz, Gianpaolo Fontana, Ever Peralta-Reyes
JOURNAL OF FLOW CHEMISTRY
(2019)
Article
Engineering, Multidisciplinary
A. Palacios, L. Zarate-Lopez, M. J. Alvarez-Guapillo, D. Cortes-Siguenza
Summary: According to accident databases, 50% of severe accidents are caused by high-temperature flames. This study analyzes the thermal radiation emitted from a partially premixed methane-air jet flame to determine the heat flux emitted. The results identify three general regions for the flame temperature and heat flux profiles as a function of the flame's axial position.
Article
Engineering, Chemical
Sebastian Uribe, Luis Zarate, Ahti Suo-Anttila, Mario E. Cordero, Joseph D. Smith
JOURNAL OF LOSS PREVENTION IN THE PROCESS INDUSTRIES
(2020)
Proceedings Paper
Engineering, Chemical
Luis G. Zarate, Mario E. Cordero, Bulent Kozanoglu, Alejandro Regalado
PRES2016: 19TH INTERNATIONAL CONFERENCE ON PROCESS INTEGRATION, MODELING AND OPTIMIZATION FOR ENERGY SAVINGS AND POLLUTION REDUCTION
(2016)
Proceedings Paper
Engineering, Environmental
Luis G. Zarate, Hugo E. Lara, Mario E. Cordero, Bulent Kozanoglu
PRES 2014, 17TH CONFERENCE ON PROCESS INTEGRATION, MODELLING AND OPTIMISATION FOR ENERGY SAVING AND POLLUTION REDUCTION, PTS 1-3
(2014)
Article
Forestry
A Gimenez, E Pastor, L Zarate, E Planas, J Arnaldos
INTERNATIONAL JOURNAL OF WILDLAND FIRE
(2004)
Article
Engineering, Environmental
Shun-Shun Chen, Xu-Xiu Chen, Tian-Yu Yang, Li Chen, Zheng Guo, Xing-Jiu Huang
Summary: A temperature-modulated sensing strategy was proposed to identify and determine BTEX compounds. Highly effective identification of BTEX was achieved using linear discrimination and convolutional neural network analyses. Additionally, quantitative analysis of concentration was accomplished by establishing the relationship between concentration and response.
JOURNAL OF HAZARDOUS MATERIALS
(2024)
Article
Engineering, Environmental
Myungkyung Noh, Jeong Yeon Sim, Jisung Kim, Jee Hwan Ahn, Hye-Young Min, Jong-Uk Lee, Jong-Sook Park, Ji Yun Jeong, Jae Young Lee, Shin Yup Lee, Hyo-Jong Lee, Choon-Sik Park, Ho-Young Lee
Summary: This study reveals that chronic exposure to PM induces chronic inflammation and development of COPD by dysregulating NAD+ metabolism and subsequent SIRT1 deficiency in pulmonary macrophages. Activation of SIRT1 by resveratrol effectively mitigates PM-induced inflammation and COPD development. Targeting metabolic and epigenetic reprogramming in macrophages induced by PM is a promising strategy for COPD treatment.
JOURNAL OF HAZARDOUS MATERIALS
(2024)
Article
Engineering, Environmental
Yu Liu, Linlin Qin, Yiming Qin, Tong Yang, Haoran Lu, Yulong Liu, Qiqi Zhang, Wenyan Liang
Summary: Co/NC/PAC electrode was prepared by compounding ZIF-67 with powder-activated carbon for the electrocatalytic treatment of nitrogen-containing heterocyclic compounds. The degradation efficiency of the four compounds reached 90.2-93.7% under optimal conditions, and the degradation order was pyridazine < pyrimidine < pyrazine < pyridine.
JOURNAL OF HAZARDOUS MATERIALS
(2024)
Article
Engineering, Environmental
Julien Couturier, Pierre Tamba Oulare, Blanche Collin, Claire Lallemand, Isabelle Kieffer, Julien Longerey, Perrine Chaurand, Jerome Rose, Daniel Borschneck, Bernard Angeletti, Steven Criquet, Renaud Podor, Hamed Pourkhorsandi, Guilhem Arrachart, Clement Levard
Summary: This study analyzes the properties of bauxite residue samples and explores the influence of bauxite ore origin, storage conditions, and storage time. The results show that the speciation of yttrium is related to the origin of bauxite ore, while no significant variation was observed with storage conditions or aging of the residues.
JOURNAL OF HAZARDOUS MATERIALS
(2024)
Article
Engineering, Environmental
Sakthinarenderan Saikumar, Ravi Mani, Mirunalini Ganesan, Inbakandan Dhinakarasamy, Thavamani Palanisami, Dharani Gopal
Summary: Microplastic contamination in marine ecosystems poses a growing concern due to its trophic transfer and negative effects on marine organisms. This study investigates the transfer and impacts of polystyrene microplastics in an estuarine food chain. The results show that microplastics can be transferred through the food chain, although the transfer rates are low. The exposed organisms exhibit stress responses, suggesting the potential risk of microplastics reaching humans through the food chain.
JOURNAL OF HAZARDOUS MATERIALS
(2024)
Review
Engineering, Environmental
Yan-Jiao Li, Ying Yuan, Wen-Bing Tan, Bei-Dou Xi, Hui Wang, Kun-Long Hui, Jia-Bao Chen, Yi-Fan Zhang, Lian-Feng Wang, Ren-Fei Li
Summary: This review investigated and analyzed the distribution, composition, and abundance of heavy metals and antibiotic resistance genes (ARGs) in landfill. The results showed that heavy metals have lasting effects on ARGs, and complexes of heavy metals and organic matter are common in landfill. This study provides a new basis to better understand the horizontal gene transfer (HGT) of ARGs in landfill.
JOURNAL OF HAZARDOUS MATERIALS
(2024)
Article
Engineering, Environmental
Jessy Joseph, Ari Vaisanen, Ajay B. Patil, Manu Lahtinen
Summary: Efficient and environmentally friendly porous hybrid adsorbent beads have been developed for the removal of arsenic from drinking water. The structural tuning of the adsorbents has been shown to have a significant impact on their adsorption performance, with high crystallinity leading to increased adsorption capacity and selectivity towards As5+.
JOURNAL OF HAZARDOUS MATERIALS
(2024)
Article
Engineering, Environmental
Yangyang Liu, Minhua Xiao, Kaiqin Huang, Juntao Cui, Hongli Liu, Yingxin Yu, Shengtao Ma, Xihong Liu, Meiqing Lin
Summary: This study measured the levels of phthalate metabolites in breast milk collected from mothers in southern China. The results showed that phthalates are still prevalent in the region, and breastfeeding contributes to phthalate intake in infants. However, the levels detected do not pose significant health risks to infants based on dietary exposure. The increasing exposure to certain phthalates calls for further research into their sources and potential risks.
JOURNAL OF HAZARDOUS MATERIALS
(2024)
Article
Engineering, Environmental
Zhiqiang Wu, Jianxing Sun, Liting Xu, Hongbo Zhou, Haina Cheng, Zhu Chen, Yuguang Wang, Jichao Yang
Summary: Ocean depth affects microbial diversity, composition, and co-occurrence patterns of microplastic microbial communities. Deterministic processes dominate the assembly of mesopelagic plastisphere microbial communities, while stochastic processes shape the assembly of bathypelagic microbial communities. The relationships between microorganisms in the mesopelagic layer are more complex and stable, with Proteobacteria and Actinobacteriota playing important roles.
JOURNAL OF HAZARDOUS MATERIALS
(2024)
Article
Engineering, Environmental
Tingting Xiao, Renjie Chen, Chen Cai, Shijie Yuan, Xiaohu Dai, Bin Dong, Zuxin Xu
Summary: Based on the efficiency of catalytic ozonation techniques in enhancing sludge dewaterability, this study investigated its effectiveness in simultaneous reduction of antibiotics and antibiotic resistance genes. The results showed that catalytic ozonation conditioning changed the distribution of antibiotics and achieved high degradation rates. It also significantly reduced the abundance of ARGs, inhibited horizontal gene transfer, and decreased the signal transduction of typical ARGs host bacteria.
JOURNAL OF HAZARDOUS MATERIALS
(2024)
Article
Engineering, Environmental
Yang Deng, Xiaohong Guan
Summary: This article discusses two different development approaches for ferrate(VI) technology in water treatment, arguing that process integration is a promising method that can drive technological innovation and revolution in water treatment, achieving higher treatment efficiency, reduced costs and energy consumption, and a smaller physical footprint.
JOURNAL OF HAZARDOUS MATERIALS
(2024)
Article
Engineering, Environmental
Zhe Zhang, Lu Zhang, Zhihao Huang, Yuxin Xu, Qingqing Zhao, Hongju Wang, Meiqing Shi, Xiangnan Li, Kai Jiang, Dapeng Wu
Summary: In this study, a floating catalytic foam was designed and prepared to enhance the mass transfer in immobilized photocatalysts for wastewater treatment. The floating catalytic foam could float on the water surface and establish a temperature gradient, effectively promoting the diffusion and adsorption of target molecules during the photocatalytic process.
JOURNAL OF HAZARDOUS MATERIALS
(2024)
Article
Engineering, Environmental
Muhammad Nafees, Adiba Khan Sehrish, Sarah Owdah Alomrani, Linlin Qiu, Aasim Saeed, Shoaib Ahmad, Shafaqat Ali, Hongyan Guo
Summary: The accumulation of cadmium and antibiotics in edible plants and fertile soil is a worldwide problem. This study investigated the potential of zinc oxide nanoparticles to alleviate the toxicity of both cadmium and antibiotics and promote spinach growth.
JOURNAL OF HAZARDOUS MATERIALS
(2024)
Article
Engineering, Environmental
Lurui Wan, Kai Wang, Yuan Chen, Zhiyong Xu, Wenbo Zhao
Summary: In this study, a low viscosity and high thermal stability SO2 absorbent with dual interacting sites was successfully synthesized. The absorbent showed the highest absorption enthalpy change and entropy change values among reported SO2 absorbents, and exhibited lower viscosity and comparable thermal stability to ILs.
JOURNAL OF HAZARDOUS MATERIALS
(2024)
Article
Engineering, Environmental
Zhengwei Zhou, Guojie Ye, Yang Zong, Zhenyu Zhao, Deli Wu
Summary: This study utilized Mo powder and STPP to enhance the performance of the sodium percarbonate system in pollutant degradation. The presence of Mo and STPP resulted in a higher degradation rate of the model pollutant SMX, with low oxidant consumption. The system generated multiple active species through a series of chain reactions at different pH values, exhibiting excellent performance towards electron-rich pollutants. Furthermore, Mo demonstrated excellent stability and reusability.
JOURNAL OF HAZARDOUS MATERIALS
(2024)
