Welcome to Fauske & Associates, LLC.

Formed in 1976, the Design Institute for Emergency Relief Systems (DIERS) was a consortium of 29 companies that developed 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 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.

Presently, 210 companies participate in the DIERS Users Group to cooperatively assimilate, implement, maintain and upgrade the DIERS methodology. The group's purpose is to reduce the frequency, severity and consequences of pressure producing accidents and to develop new techniques which will improve the design of emergency relief systems.

The DIERS Users Group conducts meetings twice a year. These three-day technical meetings are held at various locations with featured presentations by member company representatives. The technical meetings also include invited speakers and experimental round-robins. Each meeting is the equivalent of a 3-day short course consisting of approximately 28 technical presentations. More than 700 technical presentations have been given at the semi-annual meetings held since 1985.

The DIERS Users Group has organized eleven experimental round-robins:

Styrene Monomer Polymerization with Benzoyl Peroxide Initiator
Di-t-butyl Peroxide Decomposition in Benzene Solvent
Acetic Anhydride and Methanol Reaction
Hydrogen Peroxide Decomposition with Ferrous Sulfate Catalyst
Benzoyl Peroxide Decomposition
Sodium Tetraethylene Glycolate / Tetraethylene
Glycol Decomposition
Dicumyl Peroxide Decomposition
Isopropyl Alcohol and Propionic Anhydride Esterification with Sulfuric Acid Catalyst
Styrene-Acrylonitrile Free-Radical Co-polymerization
Styrene - MMA Free - Radical Co-polymerization with AIBN Initiator

There is no fee for participation in the DIERS Users Group. Membership is open to industrial or engineering organizations interested in the design, use or manufacture of emergency relief devices and systems.

Contact Information

Membership:

Harold G. Fisher
Chair of the DIERS Users Group
Fisher Inc.
229 Brookhaven Drive
Nitro, WV 25143
Phone: 304-776-6371
Fax: 304-776-1076
E-mail: fisherhg@suddenlink.net

DIERS products:

AICh Express
3 Park Avenue
New York, NY 10016-5991
Customer toll-free number:
800-242-4363
Fax: 212-591-8888
E-mail: express@aiche.org.

For more information you can visit: http://www.aiche.org/diers

OSHA has recognized AIChE / DIERS two-phase flow publications as "an example of good engineering practice for Process Safety Management of Highly Hazardous Chemicals."