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- W138131812 abstract "Today`s economics necessitates the continuous improvement of the thermal efficiency of heat exchangers in power plants. This invariably leads to higher flow rates and more flexible tubes in these heat exchangers. At a time when maintenance costs should be kept critically low, tube failure due to high flow rates (particularly near inlets and outlets) has caused great concern in nuclear power plant steam generators. Flow-induced vibrations in the heat exchangers are caused by fluctuations in flow pressure, vortex shedding, and hydrostatic interactions between the tubes and the flow. The problems of flow-induced vibration are generally fretting wear, fatigue, operational difficulties, and acoustic noise. Random excitation forces that cause low-amplitude tube displacement will result in long-term fretting wear of fatigue failures, causing lengthy plant shutdowns." @default.
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- W138131812 date "1994-12-31" @default.
- W138131812 modified "2023-09-26" @default.
- W138131812 title "Flow visualization of inlined/staggered tube bundles in crossflow using large-eddy simulation" @default.
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