Safety valve calculation – tube rupture condition in heat exchangers (high-pressure fluid in gaseous phase)
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Dear expert, for the calculation of safety valves – in the case of tube failure in heat exchangers (where the high-pressure fluid is in gaseous form), what is the formula used for such calculations? Which standard? Note: The calculation formula for the rupture of HG20570 heat exchange tubes is W=5.6d2*（G*△P）1/2, and it is applicable when the high-pressure fluid is in liquid phase.
This post was last edited by bfdlwolf on 2019-10-4 11:16. A paper is provided for reference: \"Calculation of the leakage volume in case of tube failure in shell-and-tube heat exchangers\"
The high-pressure liquid is inside the tube; simplified, it is the liquid on the high-pressure side that is ejected to the low-pressure side. The pressure difference is the pressure in the tube minus the pressure in the shell side, and only one tube will break. When it breaks, there are two surfaces, and its cross-sectional area is equal to the area of two tube diameters.