Does the nodal heat exchange tube have the capability for expansion compensation?
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When designing heat exchangers, for fixed-tube-sheet heat exchangers with large temperature differences. The shell-side fluid is steam, while the tube-side fluid is hot water. When the shell in the shell side is heated, it expands. Can the corrugations on the corrugated tube compensate for this expansion of the shell? It would be best to have a calculation method (or empirical values) for the expansion compensation amount of corrugated tubes; thank you in advance.
The nodal points on the corrugated tube cannot compensate for the expansion of the shell; as a result, in the heat exchanger designed with nodal points that should have included expansion joints, no such joints were used, and the heat exchange tubes came loose.
The wave-joint tube has a certain thermal compensation capability.
The original poster mentioned that, under high temperature differences, corrugated expansion joints are installed in the shell components of shell-and-tube heat exchangers to partially mitigate the damage caused by thermal stress. So, dear friend above, you said that corrugated heat exchange tubes also serve this purpose; could you please provide detailed theoretical calculations or examples so that we can have a clearer understanding before continuing the discussion?
There should be a capacity for compensation; our company has been in operation for over 10 years without using expansion joints, and no problems have arisen. As for the calculation method, it seems none exists
There is the ability to provide compensation... As for the calculation method, it seems none exists
We have the capability to provide compensation; we have carried out two projects, resulting in a total of over 40 products, all of which are bellows-type. The design did not include expansion joints