In the late seventies the American Institute of Chemical
Engineers (AIChE) initiated a research project investigating various aspects of
reactor vent sizing. This research project was to be known as DIERS (Design
Institute for Emergency Relief Systems) and a newly formed company called
Fauske and Associates (FAI) were awarded the contract as lead investigators.
This was due to Hans Fauske and his colleagues' standing as world experts on
two-phase flow which was thought to be a significant aspect when considering
relief systems. The DIERS project formally finished in the mid-eighties but the
worldwide DIERS community is still active and FAI are still active in the
discussions and developments in vent sizing methodology.
One of the main findings of the DIERS project was that a
suitable piece of laboratory equipment was required to investigate the specific
chemical system at the upset conditions. This measured data was then able to be
used in the DIERS methodology to determine the various aspects of the relief
system. During DIERS FAI designed the DIERS Benchscale Apparatus. This was then
later commercialised by FAI as the VSP and in a simpler form the RSST. Today
FAI manufacture the Vent Sizing Package (VSP2) apparatus and the Advanced
Reactive System Screening Tool (ARSST) and these can be found in many Hazard
Evaluation labs around the world.
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| ARSST |
VSP2 |
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