Thermal interactions of a molten tin drop with water triggered by a low-pressure shock |
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| Affiliation: | 1. Faculty of Material Science, Shenzhen MSU-BIT University, Shenzhen, Guangdong, 518172, China;2. Department of Mechanics and Aerospace Engineering, Southern University of Science and Technology, Shenzhen, Guangdong, China;1. School of Science, Hangzhou Dianzi University, Hangzhou 310018, China;2. College of Materials and Environmental Engineering, Hangzhou Dianzi University, Hangzhou 310018, China;1. Centre for Research and Technology Hellas/Chemical Process and Energy Resources Institute (CERTH/CPERI), Egialeias 52, Marousi, Greece;2. City University of London, School of Engineering and Mathematical Sciences, Northampton Square, EC1biliV 0HB London, UK;3. University of Thessaly, 41110 Larissa, Greece;1. State Key Laboratory of Automotive Safety and Energy, Tsinghua University, Beijing 100084, China;2. State Key Laboratory of Multiphase Flow in Power Engineering, Xi’an Jiaotong University, Xi’an 710049, China;3. School of Energy and Power Engineering, Beihang University, Beijing 100191, China;1. Mechanical Engineering Department, Al-Mustansiriyah University, Baghdad, Iraq;2. Department of Mechanical Engineering, The University of Sheffield, Sheffield, UK |
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| Abstract: | Thermal interactions of a molten tin drop with water were studied with a dropping contact mode in a shock tube geometry. The interaction was triggered by collapsing the initial vapor/gas bubble with a low-pressure (s< 0.8 MPa) shock. The hollow, porous, shell-like debris indicates that violent boiling, or homogeneous nucleation, of penetrated water, followed by turbulent mixing, might be a dominant mechanism for fragmentation of tin drops. An empirical correlation was obtained for the fragmentation time scale. The average heat transfer rate during the interaction was found to be in the range 1–10kW. The conversion efficiency of thermal energy to mechanical energy of the water column above the tin drop was found to be in the range 0.1%–1.0%. |
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