Abstract
A variety of heat exchangers are used in industry and in their products. A plate and frame heat exchanger is analyzed here for structural stability (stress optimization) using finite element method. Analyzed plate heat exchanger is a Waste Heat Recovery Unit (WHRU) that recovers heat from a hot gas stream while transferring it to a working medium. WHRU in this specific case is used in the application of the Claus process which is used for Sulphur recovery. The Sulphur due to high temperatures is in Vapour form and is condensed to obtain elemental sulphur. At this condensation stage a WHRU serves dual purpose of condensation as well as energy recovery. So WHRU is analyzed by finite element analysis method at working boundary conditions for identifying weak points in it. Modifications are made on weak points to reduce stress value and again WHRU is analyzed for same. The results are validated with the experimentation carried with thermal test equipment on the model.
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