Proposição geométrica de válvula PSV para usinas a vapor: benchmarking de modelos certificados ASME

Abstract

This work presents the conceptual development of an optimized three-dimensional model of a pressure safety valve (PSV), designed for applications in steam power plants. The proposal was based on a comparative analysis of four models certified under the ASME standard, employing the benchmarking methodology combined with the TOPSIS multicriteria technique, which enabled the objective identification of relevant technical attributes such as dimensions, weight, flow capacity, pressure and temperature limits, materials, and construction aspects related to maintenance. The modeling was carried out in a CAD environment using SolidWorks software, integrating well-established construction solutions from the international market, with emphasis on flow efficiency, ease of maintenance, and regulatory compliance. As a result, the conceptual model PSV ODA 2K3 300×150# was developed, combining compact dimensions with geometric adaptations aimed at reducing pressure losses under superheated steam flow conditions. Although the project was limited to three-dimensional modeling, without structural or fluid dynamic validation, the study establishes a solid foundation for future stages of prototyping and numerical simulations.