Article
Engineering, Chemical
Hanzhe Chen, Dingxuan Zhao, Zhuxin Zhang, Tuo Jia, Ruoyu Zhao, Zhengkun Qu
Summary: In this paper, the explosion-proof housing of hydraulic system power unit applied in engineering machinery is investigated. The gas explosion process, basic parameters, and flame acceleration mechanism are analyzed, and relevant mathematical models are established. The dynamic process of explosion is simulated by software, and the structural strength of the explosion-proof housing is analyzed and examined. The explosion-proof performance is verified through experiments.
Article
Engineering, Environmental
Dooguen Song, Kwangho Lee, Chuntak Phark, Seungho Jung
Summary: This study introduces an encoding-prediction neural network to predict gas leak dispersion by learning the relationship between gas dispersion, velocity field, and facility-layouts. By observing similar data at different time points, the network achieves satisfactory predictive results for gas dispersion.
PROCESS SAFETY AND ENVIRONMENTAL PROTECTION
(2021)
Article
Thermodynamics
Mariusz Kudelko
Summary: This study focuses on specifying different visions for the development of the Polish energy sector, including a traditional model, a deep decarbonization model, and an alternative model considering the economic impact of air emissions. The results suggest that transitioning to renewable energy sources and nuclear power in an 'effective' scenario can significantly improve social welfare in comparison to the 'baseline' scenario.
Article
Engineering, Chemical
Mimi Min, Junyong Park, Chankyu Kang, Seungho Jung
Summary: The study utilized CFD simulations to evaluate potential chlorine leak scenarios in South Korea's super-urban area, using FLACS to predict consequences of accidental releases. Results showed that endpoint distances of the leak were influenced by building density and arrangement. Additionally, physical barriers of varying heights were employed to mitigate the effects of toxic gas releases.
JOURNAL OF LOSS PREVENTION IN THE PROCESS INDUSTRIES
(2021)
Article
Nuclear Science & Technology
C. Gliss, C. Bachmann, S. Ciattaglia, M. Garcia, G. Federici, M. Koerber, I. Moscato, F. Riedl, I. Palermo, M. Utili
Summary: The study of the plant layout must proceed in parallel with the design of major systems in order to ensure safety, personnel security, plant availability, and performance operation. The layout of the fluid systems inside the tokamak building must consider constraints such as shielding, inspection, and maintainability to optimize the overall design.
FUSION ENGINEERING AND DESIGN
(2021)
Article
Construction & Building Technology
Ying Xu, Yimiao Huang, Jingde Li, Guowei Ma
Summary: The study proposes a risk-based design for pressure relief openings (PRO) in underground utility tunnels (UUTs) to explore optimal layout configurations. FLACS simulations show that PROs can significantly reduce maximum explosion overpressure, with risk analysis providing an ALARP reference for design.
TUNNELLING AND UNDERGROUND SPACE TECHNOLOGY
(2021)
Article
Energy & Fuels
Chunlian Cheng, Rongjun Si, Lei Wang, Quansheng Jia, Chengpeng Xin
Summary: This paper investigates gas/deposited coal dust explosions and the impact of ultra-fine dry powder on them through experiments. The results reveal that the pressure propagation velocity is faster than the flame propagation velocity, and the initial state of gas accumulation affects the initial explosion propagation process. The increasing concentration of coal dust enhances the flame propagation velocity. The explosion wave energy gradually increases after the initial gas accumulation explosion, with a faster growth rate when the amount of deposited coaldust participating in theexplosion reaction increases.
The explosion suppressing powdercreates an inert cloud barrier to inhibit explosions.
Article
Thermodynamics
Shangyong Zhou, Jiancun Gao, Zhenmin Luo, Shoutao Hu, Le Wang, Tao Wang
Summary: The study found that the magnetic domains of ferromagnetic materials enhance the ability to inhibit chain-initiated reactions and oxidation reactions, leading to better explosion suppression performance. The DC magnetic field can promote the gas explosion reaction, but when iron velvet is magnetized, it strengthens the ability to suppress explosions rather than increasing collision probability.
Article
Chemistry, Physical
Shangyong Zhou, Jiancun Gao, Zhenmin Luo, Shoutao Hu, Le Wang, Bin Su, Ruikang Li
Summary: The study shows that MAA and AV have dual effects of promoting and suppressing explosions, with the properties of flammable gases determining whether the dominant effect is promotion or suppression. Blindly using explosion suppression materials may greatly increase safety risks.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2021)
Article
Thermodynamics
Chunlian Cheng, Rongjun Si, Lei Wang, Quansheng Jia, Chengpeng Xin, Xu Chen
Summary: This study investigates gas explosion propagation in complex situations in actual roadways. It is found that the peaks of explosion pressure occur in the gas accumulation zone and the length of explosion flame is larger than that of the initial gas accumulation zone. ABC Powder can effectively suppress explosion flames of gas with different gas accumulation patterns.
CASE STUDIES IN THERMAL ENGINEERING
(2023)
Article
Engineering, Ocean
Asher Ahmed Malik, Mohammad Shakir Nasif, Usama Muhammad Niazi, Rafat Al-Waked
Summary: This study investigated above-sea gas dispersion and explosion on a realistic multileveled fixed offshore platform using FLACS under varying wind speeds. The results showed that lower decks were more susceptible to explosion consequences, especially under high wind speed and congestion. Adequate ventilation is recommended on lower platform decks to avoid explosion hazards due to cloud accumulation.
APPLIED OCEAN RESEARCH
(2022)
Article
Engineering, Chemical
Dan Wang, Qi Jing, Xinming Qian, Mengqi Yuan, Congling Shi
Summary: The impact of electrostatic field on the dispersion effect and explosion hazard of biomass dust clouds was studied through experiments and simulations. The results showed that the electrostatic field increased the peak explosion overpressure and the rate of explosion overpressure rise of dust when the dust concentration was low. Compared to the absence of electrostatic field, the maximum explosion overpressure of three typical organic dusts increased.
Article
Engineering, Environmental
Minggao Yu, Yuanpeng Fu, Ligang Zheng, Rongkun Pan, Xi Wang, Wen Yang, Hongwang Jin
Summary: An experimental study was conducted to suppress methane-air explosions in a 5 L vessel connected to discharge duct of different scales and sodium bicarbonate concentrations. Results show that the ducted-vessel experienced more flame fragmentation compared to the simply vented vessel. The flame structure becomes more irregular with a larger vent coefficient and the appropriate SBC concentration can transform the mechanism for pressure rise in the vessel.
PROCESS SAFETY AND ENVIRONMENTAL PROTECTION
(2021)
Article
Engineering, Chemical
Zhenmin Luo, Fan Nan, Fang-ming Cheng, Yang Xiao, Tao Wang, Jie Shao, Chenchen Wang
Summary: In this study, the inhibitory effects of trifluoroiodomethane (CF3I) and carbon dioxide (CO2) on the explosion pressure and flame propagation characteristics of 9.5% methane were explored using a spherical 20 L experimental explosion device. The results showed that with an increase in the volume fraction of the gas explosion suppressants, the maximum explosion pressure, maximum explosion pressure rise rate, and flame propagation speed of methane gradually decreased, and the time taken to reach these parameters was delayed. The addition of trifluoroiodomethane to carbon dioxide improved the explosion suppression efficiency of carbon dioxide.
JOURNAL OF LOSS PREVENTION IN THE PROCESS INDUSTRIES
(2023)
Article
Environmental Sciences
Lauris Joubert, Guillaume Leroy, Theo Claude, Omar Riahi
Summary: Over the past few decades, several campaigns have been carried out to collect data on the release and dispersion of chemical products in open fields. However, there has been little attention paid to the dispersion of massive flow rates in complex urban environments. In order to fill this gap, Ineris conducted an experimental campaign to study the atmospheric dispersion of large-scale CO2 releases. The results demonstrated the influence of the built environment on dispersion patterns.
Article
Engineering, Chemical
Chenglin Chang, Yufei Wang, Xiao Feng
CHINESE JOURNAL OF CHEMICAL ENGINEERING
(2020)
Article
Engineering, Chemical
Minbo Yang, Jiaxin Yang, Xiao Feng, Yufei Wang
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
(2020)
Article
Green & Sustainable Science & Technology
Yan Wu, Shuai Zhang, Ruiqi Wang, Yufei Wang, Xiao Feng
Article
Engineering, Chemical
Yan Wu, Siyu Xu, Huan Zhao, Yufei Wang, Xiao Feng
Article
Engineering, Chemical
Chenglin Chang, Alice Peccini, Yufei Wang, Andre L. H. Costa, Miguel J. Bagajewicz
Article
Engineering, Chemical
Yufei Wang, Zehuan Wan, Chenglin Chang, Xiao Feng
CHINESE JOURNAL OF CHEMICAL ENGINEERING
(2020)
Article
Green & Sustainable Science & Technology
Siyu Xu, Yufei Wang, Xiao Feng
Article
Chemistry, Multidisciplinary
Dan Zhang, Minbo Yang, Xiao Feng, Yufei Wang
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
(2020)
Article
Engineering, Chemical
Yan Wu, Shuai Zhang, Ruiqi Wang, Yufei Wang, Xiao Feng
CHEMICAL ENGINEERING RESEARCH & DESIGN
(2020)
Article
Engineering, Chemical
Yan Wu, Yufei Wang, Ruonan Liu, Xiao Feng
Summary: This study presents a method to optimize velocity distribution and replace heat exchangers to address crude fouling, a long-standing issue in refineries. By establishing a velocity correlation model and utilizing Simulated Annealing, the best solutions are explored and optimized to mitigate fouling effects.
CHEMICAL ENGINEERING RESEARCH & DESIGN
(2021)
Article
Engineering, Chemical
Ruiqi Wang, Yufei Wang, Truls Gundersen, Yan Wu, Xiao Feng, Mengxi Liu
CHEMICAL ENGINEERING SCIENCE
(2020)
Article
Engineering, Chemical
Ruiqi Wang, Yufei Wang, Truls Gundersen, Yan Wu, Xiao Feng, Mengxi Liu
Summary: The general layout design has a significant impact on the economy and safety of an industrial park. A multi-objective optimization method is proposed to achieve different trade-offs between economy and safety, with the use of improved FLUTE algorithm and extended risk map method for optimization design. NSGA-II algorithm is found to be more effective for industrial facility layout problems with multi-objective.
CHEMICAL ENGINEERING SCIENCE
(2021)
Article
Energy & Fuels
Lingwei Zhang, Yufei Wang, Xiao Feng
Summary: This study proposed a framework method for integrating industrial waste heat with district heating and cooling systems over multiple periods. Through a three-step mathematical programming method for design and operation optimization, significant benefits were found for the system through multi-period optimization.
Article
Engineering, Chemical
Jianrong Jiang, Dan Zhang, Xiao Feng, Minbo Yang, Yufei Wang
Summary: Integrating light hydrocarbon conversion units significantly improves the aromatics yield, reduces CO2 emissions, and decreases water consumption in two cofeeding designs. Among them, the design integrated with steam reforming of C2- hydrocarbons and aromatization of C3+ hydrocarbons performs the best environmentally.
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
(2021)
Article
Engineering, Chemical
Liu Bo, Wang Yufei, Feng Xiao, Han Yijie
Summary: The article discusses commonly used cooling systems in chemical plants, the current issues in design and optimization, and introduces the concept of bi-multiperiod optimization. By establishing a mixed integer nonlinear programming model, the economically optimal cooling system configuration under bi-multiperiod conditions is obtained.
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
(2021)
Article
Green & Sustainable Science & Technology
Lars odegaard Bentsen, Narada Dilp Warakagoda, Roy Stenbro, Paal Engelstad
Summary: This study investigates uncertainty modeling in wind power forecasting using different parametric and non-parametric methods. Johnson's SU distribution is found to outperform Gaussian distributions in predicting wind power. This research contributes to the literature by introducing Johnson's SU distribution as a candidate for probabilistic wind forecasting.
JOURNAL OF CLEANER PRODUCTION
(2024)
Article
Green & Sustainable Science & Technology
Xing Liu, Qiuchen Wang, Yunhao Wen, Long Li, Xinfang Zhang, Yi Wang
Summary: This study analyzes the characteristics of process parameters in three lean gas ethane recovery processes and establishes a prediction and multiobjective optimization model for ethane recovery and system energy consumption. A new method for comparing ethane recovery processes for lean gas is proposed, and the addition of extra coolers improves the ethane recovery. The support vector regression model based on grey wolf optimization demonstrates the highest prediction accuracy, and the multiobjective multiverse optimization algorithm shows the best optimization performance and diversity in the solutions.
JOURNAL OF CLEANER PRODUCTION
(2024)
Article
Green & Sustainable Science & Technology
Cairong Song, Haidong Yang, Xian-Bing Meng, Pan Yang, Jianyang Cai, Hao Bao, Kangkang Xu
Summary: The paper proposes a novel deep learning-based prediction framework, aTCN-LSTM, for accurate cooling load predictions. The framework utilizes a gate-controlled multi-head temporal convolutional network and a sparse probabilistic self-attention mechanism with a bidirectional long short-term memory network to capture both temporal and long-term dependencies in the cooling load sequences. Experimental results demonstrate the effectiveness and superiority of the proposed method, which can serve as an effective guide for HVAC chiller scheduling and demand management initiatives.
JOURNAL OF CLEANER PRODUCTION
(2024)
Article
Green & Sustainable Science & Technology
Zhe Chen, Xiaojing Li, Xianli Xia, Jizhou Zhang
Summary: This study uses survey data from the Loess Plateau in China to evaluate the impact of social interaction on the adoption of soil and water conservation (SWC) technology by farmers. The study finds that social interaction increases the likelihood of farmers adopting SWC, and internet use moderates this effect. The positive impact of social interaction on SWC adoption is more pronounced for farmers in larger villages and those who join cooperative societies.
JOURNAL OF CLEANER PRODUCTION
(2024)
Article
Green & Sustainable Science & Technology
Chenghua Zhang, Yunfei Yan, Kaiming Shen, Zongguo Xue, Jingxiang You, Yonghong Wu, Ziqiang He
Summary: This paper reports a novel method that significantly improves combustion performance, including heat transfer enhancement under steady-state conditions and adaptive stable flame regulation under velocity sudden increase.
JOURNAL OF CLEANER PRODUCTION
(2024)