Experimental investigation of the flow characteristics of jettisoning in a CO2 carrier |
| |
| Institution: | 1. Department of Chemical Engineering, UCL, London WC1E 7JE, United Kingdom;2. Dalian University of Technology, Dalian, People''s Republic of China;1. Alma Mater Studiorum – Università di Bologna, Dipartimento di Ingegneria Civile, Chimica e dei Materiali, via Terracini 28, 40131 Bologna, Italy;2. SINTEF Technology and Society, Safety Research, S. P. Andersens veg 5, 7031 Trondheim, Norway;3. Health and Safety Laboratory (HSL), Major Hazards, Harpur Hill, Buxton, Derbyshire SK17 9JN, United Kingdom;1. Department of Safety Science Engineering & State Key Laboratory of Fire Science, University of Science and Technology of China, Hefei, Anhui 230026, China;2. Engineering Department, Lancaster University, Lancaster LA1 4YR, UK;1. Department of Chemical Engineering, University College London, London WC1E 7JE, United Kingdom;2. INERIS, Dept. PHDS, Parc Technologique ALATA, BP 2, 60550 Verneuil-en-Hallate, France;1. School of Process, Environmental and Materials Engineering, University of Leeds, Leeds LS2 9JT, UK;2. School of Mathematics, University of Leeds, Leeds LS2 9JT, UK;1. Department of Chemical and Environmental Engineering, Centre of Excellence for Green Technologies, University of Nottingham Malaysia Campus, Broga Road, 43500 Semenyih, Selangor, Malaysia;2. Chemical Engineering Department, Center for Engineering and Sustainable Development Research, De La Salle University, 2401 Taft Avenue, 1004 Manila, Philippines |
| |
| Abstract: | This experimental study was performed to investigate the flow characteristics in the jettisoning flow line of a liquid CO2 carrier. When a pressurized liquid CO2 container loses mechanical integrity, possibly by material or mechanical defects, the liquid inventory should be drained out rapidly for safety reasons using the so-called jettisoning process. In the course of jettisoning, the liquid CO2 undergoes two phase change stages, from liquid to liquid + vapor and from liquid + vapor to solid + vapor. Consequently, the jettisoning release rate is affected by the characteristics of these phase changes. In this study, liquid CO2 was discharged through a small tube, representing a jettisoning flow line. The temperature and pressure were measured along the tube, and the locations of the phase changes were inferred from the measured data. The experimental results showed that active nucleation occurred near the tube tip and that the phase change into solid and vapor occurred just after leaving the pipe, irrespective of the tube length in this study. |
| |
| Keywords: | Jettisoning Phase change Jettisoning flow line Nucleation |
| 本文献已被 ScienceDirect 等数据库收录！ |
|
