Designing an Inherently Safer Refrigeration System

published Apr 06, 2009 - 24 pages

This technical paper will describe a formalized method that has been used to quantitatively and qualitatively evaluate different options in ammonia refrigeration systems to identify inherently safer options. The method involves adding additional questions to Process Hazard Analysis (PHA) studies to stimulate discussions on potential inherently safer designs. The method also involves the use of actual ammonia accident investigation data and published equipment and human failure rate data to evalu

This technical paper will describe a formalized method that has been used to quantitatively and qualitatively evaluate different options in ammonia refrigeration systems to identify inherently safer options. The method involves adding additional questions to Process Hazard Analysis (PHA) studies to stimulate discussions on potential inherently safer designs. The method also involves the use of actual ammonia accident investigation data and published equipment and human failure rate data to evaluate various design alternatives. The end result is a suggested list of action items which are designed to make ammonia refrigeration systems inherently safer.


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