The recent emphasis on RAGAGEP increased the scope of risk factors that require evaluation in order to develop complete and compliant pressure relief and flare system (PRFS) documentation. Failure to document compliance and deviations from compliance with RAGAGEP can be cited under (d)(3)(ii). The OSHA definition of process equipment is very broad.
This publication discusses important RAGAGEP considerations for these additional risk factors. Recommendations are provided on how to best address these factors in the evaluation and documentation of design basis.
RAGAGEP categories requiring special attention in relief systems include dispersion analysis, thermal radiation, noise, vibration risk, reaction forces and structural supports, metal cold temperatures due to expansion cooling and two phase flow, hot temperatures due to fire exposure and/or runaway reactions, PRV stability, chemical reaction systems, and loss of high pressure/low pressure interface.
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