Forced ventilation effect by Air-Fin-Cooler on flammable gas cloud dispersion |
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| Institution: | 1. Brandenburgische Technische Universität Cottbus – Senftenberg, Fakultät für Naturwissenschaften, Postfach 101548, D-01968 Senftenberg, Germany;2. Institut für Anorganische Chemie, Technische Universität Bergakademie Freiberg Leipziger Str. 29, D-09599 Freiberg, Germany;1. School of Mechanical Engineering, Shanghai University of Engineering Science, Shanghai 201620, China;2. Department of Mechanical Engineering, University of California, Riverside, CA 92521, USA;1. Department of Environmental Engineering, University of Science and Technology Beijing, 30 Xueyuan Road, Haidian District, Beijing 100083, China;2. National Engineering Research Center of Urban Environmental Pollution Control, Beijing Municipal Research Institute of Environmental Protection, 59 Xiaoyingfang Middle Street, Xicheng District, Beijing 100037, China;3. MCC Capital Engineering & Research Incorporation Limited, 7 Jian’an Street, Daxing District, Beijing 100176, China;1. College of Biological and Environmental Sciences, Zhejiang Wanli University, Ningbo 315100, PR China;2. Korean Bioinformation Center (KOBIC), Korea Research Institute of Bioscience and Biotechnology, Daejeon 305-806, Republic of Korea;3. Department of Bioinformatics, University of Sciences and Technology, Daejeon 305-350, Republic of Korea;4. Department of Dermatology, Sungkyunkwan University School of Medicine, Samsung Medical Center, Seoul 135-710, Republic of Korea;5. Zhejiang Provincial Key Laboratory of Applied Enzymology, Yangtze Delta Region Institute of Tsinghua University, Jiaxing 314006, PR China |
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| Abstract: | This paper is the second installment of a paper published on Process Safety and Environment Protection in 2013, which evaluates the Air-Fin-Cooler (AFC) forced ventilation effect over natural ventilation inside congested LNG process train, i.e., modularized LNG, considering the Air Change per Hour (ACH) using Computational Fluid Dynamics (CFD) analysis. This second paper evaluates the effect of forced ventilation on gas cloud dispersion using CFD in order to evaluate possible design measures, such as safety distance in trains and whether to shut down the AFC in case of releases. The results of this evaluation show that gas cloud accumulation is reduced by AFC induced air flow in the case of shorter separation distances between modules. Based on the results, two design measures are proposed, i.e., keep AFC running during emergency and train orientation against prevailing wind direction. |
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| Keywords: | Air-Fin-Cooler Forced ventilation Separation distance LNG CFD |
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