Design Improvements of a Shell and Tube Heat Exchanger Based on Practical Experience and Numerical Analysis
It is shown that the performance, maintenance and lifespan of a vertical shell and tube evaporator critically depends on the geometry near the outlet. Several different geometries are examined both theoretically and experimentally, utilizing some heat exchangers of Shell Chemie B.V. Wear mechanisms are located, recognized and quantified with the aid of an eddy current measuring technique. In situ measurements during operation are performed in order to verify the 2-D numerical modelling.
KeywordsPorosity Enthalpy Steam Magnetite Cavitation
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