Work on the development of a practical tool, the “Fugitive Emissions Calculator” (FEC) has been previously reported. This tool, based in Microsoft® Excel® has been used to help predict anticipated fugitive emissions of various gasket materials with the proposed ASME / PVRC method for estimating leak rates using standard Room Temperature Testing (ROTT) data, the operating pressure, the pipe diameter, gasket stress, and other inputs. To further test the performance of the FEC, a sensitivity analysis has been conducted, focusing on several parameters, including system pressure, assembly efficiency, and gasket stress and their relative degree of significance on the predicted gasket tightness and leak rate. In addition, work has been conducted for developing a method for estimating the stress retention coefficient previously reported as a proposed modification to the PVRC leak rate method. The findings and conclusions of these studies are presented.
Further Studies on Predicting Leak Rates Using an Emissions Calculator for Bolted Flanged Connectors
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Rice, DA, & Waterland, AF(, III. "Further Studies on Predicting Leak Rates Using an Emissions Calculator for Bolted Flanged Connectors." Proceedings of the ASME 2015 Pressure Vessels and Piping Conference. Volume 2: Computer Technology and Bolted Joints. Boston, Massachusetts, USA. July 19–23, 2015. V002T02A027. ASME. https://doi.org/10.1115/PVP2015-45196
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