The Design Institute for Emergency Relief Systems (DIERS) was formed in 1976 as
consortium of 29 companies to develop methods for the design of emergency
relief systems to handle runaway reactions. DIERS spent $1.6 million to
investigate the two-phase vapor-liquid onset / disengagement dynamics and the
hydrodynamics of emergency relief systems. Of particular interest to DIERS were
the prediction of two-phase flow venting and the applicability of various
sizing methods for two-phase vapor-liquid flashing flow.
DIERS became a Users Group in 1985 with over 200 companies (75 percent domestic
and 25 percent international) ultimately requesting membership and having their
corporate representatives participate in the semi-annual meetings.
DIERS (formerly the DIERS Users Group) is a Technical Entity within the AIChE. Individuals with at least a Bachelor Degree in a STEM field are eligible to become members of DIERS.”
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