Small scale boilover and visualization of hot zone |
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| Affiliation: | 1. Grupo de Diseño de Productos y Procesos (GDPP), Department of Chemical Engineering, Universidad de los Andes, Bogotá, Colombia;2. School of Management, Universidad de los Andes, Bogotá, Colombia;3. Centro para la Optimización y Probabilidad Aplicada (COPA), Department of Industrial Engineering, Universidad de los Andes, Bogotá, Colombia;1. School of Chemical Machinery and Safety Engineering, Dalian University of Technology, Dalian 116024, China;2. State Key Laboratory of Fire Science, University of Science and Technology of China, Hefei 230027, China;3. Department of Chemical System Engineering, School of Engineering, The University of Tokyo, Hongo 7-3-1, Bunkyo-ku, Tokyo 113-8656, Japan;1. Departamento de Proyectos de Ingeniería, Universitat Politècnica de València, Camino de Vera s/n, 46022, Valencia, Spain;2. Departamento de Ingeniería de Construcción y Fabricación, ETSII, UNED, C/Ciudad Universitaria S/N, 28040, Madrid, Spain;3. Universitat de València, Avda. de la Universidad s/n, 46100, Burjassot, Valencia, Spain;4. Departamento de Ingeniería Química, Universitat de València, Avda de la Universidad s/n, 46100, Burjassot, Spain;1. London South Bank University Explosion & Fire Research Group, 103 Borough Rd, SE1 0AA, UK;2. Honeywell Aerospace, Bunford Ln, Yeovil, BA20, UK;1. Department of Mechanical Engineering, Korea Advanced Institute of Science and Technology, 291 Daehak-ro, Yuseong-gu, Daejeon, 305-701, Republic of Korea;2. Hyundai Heavy Industries, 17-10, Mabuk-ro 240 Beon-gil, Giheung-gu, Yongin-si, Gyeonggi-do, 446-912, Republic of Korea |
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| Abstract: | Experimental studies of boilover were conducted in small scale rig at Universiti Teknologi PETRONAS (UTP), Malaysia and Loughborough University, United Kingdom. The study at UTP was aimed to demonstrate the ability of conducting tests at a smaller scale to simulate the boilover phenomenon. At Loughborough University, a novel laboratory scale rig was designed and built in order to obtain visual records of fuels' behaviour in a pool fire. The ultimate objective of these studies is to develop a greater understanding of boilover pertaining to fires involving the contents of storage tanks. Fuel mixtures containing light and heavy components were burnt as to study the feasibility of reproducing hot zone formation and boilover in a smaller scale and a safe environment. Boilover occurred after certain period of burning. It is found that thickness of the hot zone changed with time. It is also found that the time needed to start boilover increased when fuel thickness increased. The visualization of the fuel behaviour during the experiments was obtained to better understand the formation and growth of hot zone, the boiling of water layer and hence the boilover occurrence. Based on the data analysis and the photographs recorded from the experiments, the laboratory scale experimental rig could be used to simulate the hot zone formation mechanism and the boilover event safely and successfully. Such information are important for the understanding towards boilover phenomenon. |
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| Keywords: | Boilover Hot zone formation Visualization of hot zone |
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