Reliability Analysis of Pressure Relief Valve

Pressure relief valve (PRY) is a reclosing-type pressure relief device. Pressure Relief Devices are used to protect pressurized equipment from exceeding the maximum allowable working pressure. PRD is considered as the "last line of defense" to save human lives and property. Therefore, it is extremely important to perform reliability analysis on pressure relief valve system. The aim of this study is to assess reliability of pressure relief valve by using proof test data. The reliability analysis will use Weibull models to fit data obtained from available public data approved by the Center for Chemical Process Safety Process Equipment Reliability Database (CCPS PERD). The purpose of this dissertation is to outline research that has been done about the topic and review existing literatures related to the topic. The calculated failure rate of PRV by using Weibull++ is consistent with existing literature. This dissertation has five chapters: (1) Introduction, (2) Literature Review, (3) Methodology, (4) Results and Discussion, and (5) Conclusion and Recommendation. The first chapter describes background study, problem statement, objectives, and scope of the study. The second chapter explains previous literature related to reliability analysis and pressure relief valve system. The third chapter outlines the methodology used to complete the project. The Gantt chart and required tools for the study are also mentioned. The fourth chapter records the findings of the project and the final chapter concludes this dissertation report