Modeling and analysis of thermal damping in heat exchanger tube bundles

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• 作者：Shahab Khushnood ; Zaffar Muhammad Khan ; Muhammad Afzaal Malik ; Qamar Iqbal ; Sajid Bashir ; Muddasar Khan ; Zafarullah Koreshi ; Mahmood Anwar Khan ; Tahir Nadeem Malik ; Arshad Hussain Qureshi
• 关键词：Modeling and analysis ; Thermal damping ; Cross-flow-induced vibration ; Tube bundles
• 刊名：Nuclear Engineering and Design
• 出版年：2010
• 出版时间：July 2010
• 年：2010
• 卷：240
• 期：7
• 页码：1906-1918
• 全文大小：1620 K

文摘

Most structures and equipment used in nuclear power plant and process plant, such as reactor internals, fuel rods, steam generator tubes bundles, and process heat exchanger tube bundles, are subjected to flow-induced vibrations (FIV). Costly plant shutdowns have been the source of motivation for continuing studies on cross-flow-induced vibration in these structures. Damping has been the target of various research attempts related to FIV in tube bundles. A recent research attempt has shown the usefulness of a phenomenon termed as ‘thermal damping’. The current paper focuses on the modeling and analysis of thermal damping in tube bundles subjected to cross-flow. It is expected that the present attempt will help in establishing improved design guidelines with respect to damping in tube bundles.