Presented at a DIERS Users Group meeting in Germany "Using the VSP2TM to Perform Relief Sizing On Epichlorohydrin Chemistry" Gabe Wood, Manager of Thermal Hazards Testing & Consulting, Fauske & Associates, LLC (FAI) covers the hydrolysis of Epicholorohydrin with water using the application of data with case studies for vent sizing relief system design using Vent Sizing Package 2 (VSP2). The vent sizing results are also performed in accordance with ISO 4126-10.
A low thermal inertia apparatus simplifies and is necessary to obtain data for relief sizing. What was originally released was Fauske DIERS bench-scale apparatus developed as part of the DIERS research program later became the Fauske VSP2. The VSP2 is extremely important instrument for obtaining the data for relief sizing. A number of universities have the the VSP2 or the Advanced Reactive System Screening Tool (ARSSTTM). Both are low inertia calorimeters developed by FAI.
The VSP2 utilizes established DIERS technology to identify and quantify process safety hazards so they can be prevented or accommodated by process design. Test data includes adiabatic rates of temperature and pressure change which, due to the low thermal inertia, can be directly applied to process scale to determine relief vent sizes, quench tank designs and other relief system design parameters related to process safety management. Adiabatic data obtained with the VSP2 can be used to characterize reactive chemical systems and consequences that could occur due to process upset conditions. The
If you are interested in learning more about relief system design, register for FAI University's course. Unlike other emergency vent sizing courses, this curriculum highlights simplified calculation methods capable of giving safe - but not overly conservative - relief system designs, with an emphasis on reactive chemistries and the role of two-phase flow.
