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ISSN Online: 2377-424X

ISBN Print: 978-1-56700-474-8

ISBN Online: 978-1-56700-473-1

International Heat Transfer Conference 16
August, 10-15, 2018, Beijing, China

INVESTIGATION ON THE NOISE CHARACTERISTICS OF DIRECT CONTACT STEAM CONDENSATION IN LOW SUB-COOLED WATER

Get access (open in a dialog) DOI: 10.1615/IHTC16.mpf.024631
pages 6625-6631

要約

Bubbling deaeration is adopted in marine steam power system (MSPS), and the direct contact steam condensation (DCSC) in low subcooled water is the thermodynamic foundation of this technology. DCSC in low subcooled water involves intensive multiphase turbulence, condensation, mass and heat transfer etc., and plays important roles for MSPS's deoxygenation efficiency and acoustic stealthiness. In this paper, the two-phase flow regimes and acoustic characteristics of DCSC would be investigated for subcooled temperature ranging from 2.8° to 14.7°. It is found that both the steam mass flux and the subcooled temperature have significant influences on the steam plume behaviors. Wide-band noise has been detected during the low subcooled DCSC process. The low-frequency component occupies the dominant position of radiated noise at very low sub-cooled temperature conditions, while the high-frequency noise becomes more and more significant when increasing the subcooled temperature.