DISCUSSION OF THE MECHANISMS LIKELY TO CAUSE FAILURE OF PRESSURE VESSEL THERMAL INSULATION.

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Drake, M.E.
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ACOUSTIC WAVE EFFECTS - VIBRATIONS;
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The basic mechanisms of flow and acoustic dynamic pressure fluctuations that can be responsible for the failure of primary and secondary retaining systems of pressure vessel thermal insulation are discussed. Simple theories are presented to explain the basic dependencies of these mechanisms on the reactor operating parameters of flow velocity, density and velocity of sound. Experimental data obtained during reactor commissioning are compared with these theories. Wear measurements from insulation removed from an operational reactor are presented and compared with data obtained from laboratory tests.
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