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
Yueqiong Wu, Kuibin Zhou, Mengya Zhou, Mengyuan Huang, Chao Wang, Juncheng Jiang
Summary: A new facility was used to model the jet flame ejected from the ruptured tank, and the geometrical features of the flame and radiant heat fluxes on the tank surface were measured. Two thermal radiation models were established to predict the radiant heat flux field. The prediction of the models agreed well with the experimental measurements.
INTERNATIONAL JOURNAL OF THERMAL SCIENCES
(2022)
Article
Thermodynamics
Qiang Wang, Longhua Hu, Fei Tang, Adriana Palacios, Suk Ho Chung
Summary: The lifted flame behavior of inclined turbulent jets was experimentally investigated by varying the inclination angle of non-premixed fuel jets. The results showed that the lift-off length increases linearly with the increase in initial fuel jet velocity at a fixed inclination angle. A physical model was developed to quantify the lift-off length, taking into account the effect of jet inclination angle.
COMBUSTION AND FLAME
(2023)
Article
Energy & Fuels
Zhenhua Tang, Kun Zhao, Zhirong Wang, Jizhe Wang, Yi Pan
Summary: This study focuses on the burning behaviors of horizontal hydrogen jet fires under the action of a water curtain system. The experimental results show that the shape of the hydrogen jet flame expanded on the water curtain is elliptical at different conditions. A new dimensionless heat release rate is proposed to estimate the flame extension length.
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
Thermodynamics
Zhenhua Wang, Juncheng Jiang, Guanghu Wang, Lei Ni, Yong Pan, Meng Li
Summary: This study comprehensively quantified the flame spread length and lift-off distance of horizontal jet fires impinging on a vertical plate. The results showed that the length of flame spread along the vertical plate increased with increasing the heat release rate and decreasing the nozzle-plate spacing for a given nozzle diameter. In addition, the large nozzle had a relatively greater increase in the flame spread length than the small one.
Article
Engineering, Environmental
Kuibin Zhou, Mengya Zhou, Mengyuan Huang, Yifan Wang
Summary: This paper presents a systematic investigation on the jet fire in a pit, including the variations of gas entrainment mode and flame behavior. A dimensionless heat release rate coupling the pit geometrical property is developed to correlate the flame area and length, which is validated by experimental data. Models for predicting the thermal radiation of the jet fire are proposed.
PROCESS SAFETY AND ENVIRONMENTAL PROTECTION
(2022)
Article
Engineering, Environmental
Zhenhua Wang, Kuibin Zhou, Le Zhang, Xuan Nie, Yueqiong Wu, Juncheng Jiang, Anne Simone Dederichs, Lu He
Summary: The study investigated the impact of impinging jet fire on vertical plates, revealing the effects of nozzle exit velocity, exit diameter, and exit-plate spacing. Experimental observations showed changes in flame pattern and color with variations in exit velocity and exit-plate spacing. A new correlation was developed to predict the flame extension area of horizontally and vertically impinging jet fires.
PROCESS SAFETY AND ENVIRONMENTAL PROTECTION
(2021)
Article
Engineering, Environmental
Kuibin Zhou, Mengya Zhou, Mengyuan Huang, Yifan Wang
Summary: This paper systematically investigates jet fire in a pit (JFP) caused by the explosion of underground pipelines. The study observes different types of flames and develops correlations for flame length and width in various pits, as well as proposes models to predict thermal radiation. The research indicates that flame buoyancy becomes more significant than nozzle exit momentum as the nozzle exit velocity increases, leading to the evolution of JFP behavior.
PROCESS SAFETY AND ENVIRONMENTAL PROTECTION
(2022)
Article
Thermodynamics
Dong Seok Jeon, Gyu Jin Hwang, Nam Il Kim
Summary: The effects of adding hydrogen to methane were investigated through the transition from laminar to turbulent regimes in non-premixed lifted flames. The lift-off heights varied depending on fuel tube diameter, jet velocity, and hydrogen ratio. The study discussed transitional phenomena and proposed an improved relationship between lift-off heights and fuel jet velocities. The blow-off mechanism and overall stabilization modes of the flames were also explained.
COMBUSTION AND FLAME
(2023)
Article
Thermodynamics
Guijun Liu, Suhui Li
Summary: This study investigates the effects of coflow oxygen content on the lift-off height of an autoignited jet flame and develops a prediction model for lift-off height. The results show that the transition threshold for autoignited flames increases with increasing oxygen content, and the lift-off height decreases significantly with increasing oxygen content.
COMBUSTION AND FLAME
(2022)
Article
Thermodynamics
Raul Payri, Jaime Gimeno, Marcos Carreres, Tomas Montiel
Summary: The study analyzed the influence of inter-jet spacing on ignition delay and lift-off length, finding that sprays with smaller spacing had slightly longer ignition delays under low temperature and density conditions, while reducing the spacing decreased lift-off length values. In particular, sprays with a 30-degree spacing had significantly lower lift-off length values compared to those with 36 and 45-degree spacings.
COMBUSTION AND FLAME
(2021)
Article
Thermodynamics
Jiang Lv, Longhua Hu, Xin Li, Hongyu Lu, Yuxuan Ma, Xiepeng Sun, Suk Ho Chung
Summary: Investigation was conducted on the flame downwash phenomenon of a horizontal jet fire with crossflow perpendicular to the fuel discharge direction. Experiments with various factors were carried out, and the results showed that the length of flame downwash varied with the fuel supply flow rate and crossflow air speed. A dimensional analysis was performed to identify three characteristic parameters that correlated well with the measured length of flame downwash.
PROCEEDINGS OF THE COMBUSTION INSTITUTE
(2023)
Article
Engineering, Environmental
Nur Shahidah Ab Aziz, Rafiziana Md Kasmani, Mohd Dinie Muhaimin Samsudin, Arshad Ahmad, Aishah Abd Jalil, Norazana Ibrahim
Summary: This study experimentally investigated the characteristics of free horizontal jet fires and the impingement effect using propane as fuel, with different nozzle diameter and exit velocity. The results showed that the flame features of free release changed faster than impinging release, and the presence of downstream objects affected the flame profiles to some extent. Therefore, new correlations were proposed for predicting the projected flame length and trajectory length.
PROCESS SAFETY AND ENVIRONMENTAL PROTECTION
(2023)
Article
Engineering, Environmental
Chunxiang Zhao, Xing Li, Xiaohan Wang, Min Li, Huahua Xiao
Summary: This paper experimentally studied the characteristics of H-2/CH4 jet flames at varied heat release rates (HRRs) with H-2 volume fraction (fv) ranging from 0% to 90%. The results showed that the flame height is affected by the increase in mixture molecular diffusivity, radicals pool, air entrainment, flame temperature, and jet velocity of fuel flow. A flame height model for H-2/CH4 flames was obtained through comparisons of different correlations.
PROCESS SAFETY AND ENVIRONMENTAL PROTECTION
(2023)
Article
Engineering, Environmental
Delphine M. Laboureur, Zhe Han, Brian Z. Harding, Alba Pineda, William C. Pittman, Camilo Rosas, Jiaojun Jiang, M. Sam Mannan
JOURNAL OF HAZARDOUS MATERIALS
(2016)
Article
Engineering, Chemical
Jiaqi Zhang, Delphine Laboureur, Yi Liu, M. Sam Mannan
JOURNAL OF LOSS PREVENTION IN THE PROCESS INDUSTRIES
(2016)
Article
Engineering, Chemical
Nirupama Gopalaswami, Delphine M. Laboureur, Ray A. Mentzer, M. Sam Mannan
JOURNAL OF LOSS PREVENTION IN THE PROCESS INDUSTRIES
(2016)
Article
Engineering, Chemical
Delphine M. Laboureur, Nirupama Gopalaswami, Bin Zhang, Yi Liu, M. Sam Mannan
JOURNAL OF LOSS PREVENTION IN THE PROCESS INDUSTRIES
(2016)
Article
Engineering, Chemical
C. Fouchier, D. Laboureur, L. Youinou, E. Lapebie, J. M. Buchlin
JOURNAL OF LOSS PREVENTION IN THE PROCESS INDUSTRIES
(2017)
Article
Engineering, Environmental
Nafiz Tamim, Delphine M. Laboureur, Ray A. Mentzer, A. Rashid Hasan, M. Sam Mannan
PROCESS SAFETY AND ENVIRONMENTAL PROTECTION
(2017)
Article
Engineering, Chemical
Bin Zhang, Delphine M. Laboureur, Yi Liu, Nirupama Gopalaswami, M. Sam Mannan
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
(2018)
Article
Engineering, Environmental
Nafiz Tamim, Delphine M. Laboureur, A. Rashid Hasan, M. Sam Mannan
PROCESS SAFETY AND ENVIRONMENTAL PROTECTION
(2019)
Article
Thermodynamics
D. Laboureur, G. Glabeke, J. B. Gouriet
JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY
(2019)
Article
Engineering, Environmental
Tatiana Flechas, Delphine M. Laboureur, Charles J. Glover
PROCESS SAFETY AND ENVIRONMENTAL PROTECTION
(2020)
Article
Engineering, Chemical
Hans J. Pasman, Charline Fouchier, Sunhwa Park, Noor Quddus, Delphine Laboureur
PROCESS SAFETY PROGRESS
(2020)
Article
Chemistry, Multidisciplinary
Delphine Laboureur, Gertjan Glabeke, Jean-Baptiste Gouriet
Summary: The paper proposes the validation of a low-temperature oxidation model for aluminum nanoparticles by comparing experimental results with mathematically converted oxide thickness evolution and setting parameter values. This establishes a procedure for passivation.
JOURNAL OF NANOPARTICLE RESEARCH
(2021)
Article
Chemistry, Multidisciplinary
D. Laboureur, G. Glabeke, J. B. Gouriet
Summary: This study thoroughly investigated the aging behavior of aluminum nanopowders obtained by plasma electro-condensation under various humidity and temperature conditions, and established an accelerated aging model taking into account temperature and humidity effects to predict oxidation due to natural aging. The activation energy of the aging process determined through the model can be used in Bohn's accelerated aging model with a similar F coefficient.
JOURNAL OF NANOPARTICLE RESEARCH
(2021)
Article
Computer Science, Interdisciplinary Applications
Abdelhafidh Moumen, Veronique de Briey, Oussama Atoui, Delphine Laboureur, Johan Gallant, Patrick Hendrick
Summary: Background-oriented schlieren (BOS) technique is a density-based optical measurement technique used for reconstructing refractive index/density field. In this study, a Monte Carlo simulation (MCS) method is proposed for estimating the uncertainty in BOS measurements. The method can handle different mathematical reconstruction procedures and easily integrate additional sources of error.
JOURNAL OF VISUALIZATION
(2022)
Article
Mechanics
A. Moumen, D. Laboureur, J. Gallant, P. Hendrick
Summary: This study presents a new method for reconstructing three-dimensional axisymmetric refractive index fields using the background-oriented schlieren technique. The proposed method takes advantage of the bi-sensitivity quality of BOS to improve accuracy in the reconstructed fields. The method's precision and robustness are demonstrated through synthetic experimental data. It can be applied not only to BOS but also to other measurement techniques such as moire deflectometry, laser speckle photography, and rainbow schlieren.
Article
Engineering, Chemical
Chao Chen, Hang Chen, Li Mo, Shenbin Xiao, Changjun Li, Ming Yang, Genserik Reniers
Summary: Fire-induced domino effect is a major threat to hazardous material storage tanks. Previous research neglected the impact of wind load on the thermal buckling behavior of tanks exposed to fire. This paper conducts a numerical simulation to analyze the synergistic effects of fire and wind loads on the thermal post-buckling behavior of storage tanks, considering wind parameters and heat radiation parameters.
JOURNAL OF LOSS PREVENTION IN THE PROCESS INDUSTRIES
(2024)
Article
Engineering, Chemical
Zhang Chu, Liu Lili, Li Wei, Li Beibei, Liu Mingxing
Summary: This study predicts the fatigue life of blasting discs using a combined simulation method and measures the deformation of conventional slotted blasting discs subjected to repeated loading using a high-precision laser scanning method. A relationship model is established between deformation, loading pressure, cycle number, and change in blasting pressure. The results show that the deformation varies linearly with the cycle number and follows a power function relationship with the change in blasting pressure. The deformation can be used to accurately predict the fatigue life of blasting discs.
JOURNAL OF LOSS PREVENTION IN THE PROCESS INDUSTRIES
(2024)
Article
Engineering, Chemical
Shin-Mei Ouyang, Jia-Chi Ye, Wei-Chun Chen, Yu-Jen Chen, Chin-Feng Chen
Summary: This study employed the Taguchi method and analysis of variance to investigate the factors that influence the deterioration of pyrotechnics when stored under different humidity and temperature conditions. Various experimental methods were used to study the microstructure, heat flow, and safety of the pyrotechnics. The results showed that humidity had a significant impact on the pyrotechnics, and controlling humidity could reduce the hazards associated with storing pyrotechnics.
JOURNAL OF LOSS PREVENTION IN THE PROCESS INDUSTRIES
(2024)
Article
Engineering, Chemical
Bei Li, Huiqiang Liu, Heng Gao, Chi-Min Shu, Mingshu Bi
Summary: The moisture content sprayed into the dust layer in industrial sites is a main factor affecting reignition. The study found that moisture has a certain influence on the thermophysical properties of the dust layer, playing an important role in heat transfer and heat absorption processes. The results showed that as the moisture content increased, the thermal conductivity and heat sink density of the sample increased, indicating the need to have a heat sink density higher than the heat increase value to suppress ignition.
JOURNAL OF LOSS PREVENTION IN THE PROCESS INDUSTRIES
(2024)
Article
Engineering, Chemical
Yue Jing, Yong Pan, Fan Yang, Dan Wei, Wenhe Wang
Summary: A comprehensive risk assessment method for the esterification process was proposed in this study. It established a comprehensive evaluation index system and utilized improved Dempster-Shafer evidence theory and cloud model for assessment. The method was validated through case studies and showed consistency with established indexes.
JOURNAL OF LOSS PREVENTION IN THE PROCESS INDUSTRIES
(2024)