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Heat transfer and thermal stress analysis in industrial gas flow equipment

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dc.contributor.advisor Dr. G. Coetzee and Prof. L. Pretorius en_US
dc.contributor.author Van Zyl, David
dc.date.accessioned 2012-09-14T05:33:02Z
dc.date.available 2012-09-14T05:33:02Z
dc.date.issued 2012-09-14
dc.date.submitted 1997
dc.identifier.uri http://hdl.handle.net/10210/7740
dc.description M.Ing. en_US
dc.description.abstract The steelmaking process is briefly described with regard to process parameters and products influencing the fume extraction function of the water-cooled ducting. The flow distribution in the complex tubular network was determined by developing a software program based on parallel pass connections. A heat transfer analysis was performed on the specific problematic section referred to as the fixed elbow, with boundary conditions simulating the actual maximum operating conditions in an electric arc furnace. The temperature distribution was incorporated in a thermal stress analysis and a total stress profile was obtained for the radial as well as circumferencial positions. Areas of maximum stress were identified and the theory of fatigue failure due to cyclic operation was applied to these maximum stress conditions. The ABAQUS finite element program was used to model the behaviour of the material under the operating conditions using the sequencially coupled heat transfer and stress analysis routine. The results obtained correlates well with the actual failure of water-cooled ducting sections in operation and provides a platform for designing and optimising similar equipment for industrial applications. en_US
dc.language.iso en en_US
dc.subject Thermal stresses en_US
dc.subject Electric furnaces en_US
dc.title Heat transfer and thermal stress analysis in industrial gas flow equipment en_US
dc.type Thesis en_US

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